第一篇：2009年第5期海船船員適任統(tǒng)考試題

中華人民共和國(guó)海事局

2009年第5期海船船員適任統(tǒng)考試題（總第48期）

科目：航海學(xué)試卷代號(hào)：913 適用對(duì)象：無(wú)限航區(qū)3000總噸及以上船舶二／三副

（本試卷卷面總分100分，及格分為70分，考試時(shí)間100分

鐘）

答題說(shuō)明：本試卷試題均為單項(xiàng)選擇題、請(qǐng)選擇一個(gè)最合適的答案，并將該答案按答題卡要求在其相應(yīng)位置上用2B鉛筆涂黑。每題1分，共100分。1．航海上為了簡(jiǎn)化計(jì)算，通常將地球當(dāng)作：

A．圓球體 B．橢圓體 C．橢球體 D．不規(guī)則幾何體

2.某船由30°S，60oW航行至30oN，120oW，則該船經(jīng)差和緯差的方向分別為_(kāi)__________。A．E 經(jīng)差、N 緯差 B．W 經(jīng)差，S 緯差 CE 經(jīng)差、S 緯差 D．W 經(jīng)差、N 緯差

3.從海圖上查得GPS 船位修正的說(shuō)明中有“Latitude 2.’10NorthwarD．Longitude 1.’4 Westward”字樣。GPS 的經(jīng)、緯度讀數(shù)為：30o40.’2S，15o12.’5W。則用于海圖上定位的數(shù)據(jù)應(yīng)為：

A．30o41.’3S，15o12.’9W B．30o39.’2S，15o12V3W C．30o38.’1S，15o13.’9W D．30o40.’0S，15o11.’5W 4.半圓方向120oSE 換算成圓周方向?yàn)開(kāi)_______ A．030o B．060o C．120o D．150o

5．某船真航向060o，該船右正橫某物標(biāo)的真方位為_(kāi)_______ A．150o B．330o C．090o D．060o

6.某輪陀羅航向300o，陀羅差2oE，則左正橫處物標(biāo)的陀螺方位是______________ A．210o B．208o C．212o D．270o

7.某地磁差資料為：Var.0o40’E（1979），increase about2.’5annually，則該地1999 年的磁差為_(kāi)______ A．1o30’E B．1o05’’E C．0o15’E D．0o10’W 8.某輪計(jì)程儀改正率為0.0％，無(wú)航行誤差，則在44o14’S～44o14’N 范圍內(nèi)；無(wú)論航向是多少，實(shí)際船位永遠(yuǎn)比推算船位________（不考慮風(fēng)流影響。）A．超前 B．落后 C．重合 D．無(wú)法確定

9.測(cè)者眼高為9m，物標(biāo)高程為16m，則測(cè)者能見(jiàn)地平距離為_(kāi)_______海里。A．6.27 B．8.36 C．14.63 D．6.67 10.英版海圖和燈標(biāo)表中所標(biāo)射程僅與___________有關(guān)。A 測(cè)者眼高和燈塔燈高 B．燈塔燈高和燈光強(qiáng)度

C 燈光強(qiáng)度和氣象能見(jiàn)度 D．燈塔燈高、燈光強(qiáng)度，地面曲率和地面蒙氣差 11..相對(duì)計(jì)程儀顯示的航程是_______ A 船舶在各種風(fēng)流情況下的對(duì)水航程 B．船舶在各種風(fēng)流情況下的對(duì)地航程 C 船舶在僅僅受到風(fēng)的影響下的對(duì)水航程。D．船舶在僅僅受到流的影響下的對(duì)水航程 12..某船電磁計(jì)程儀指示的航速為12kn，計(jì)程儀改正率△L =0％，當(dāng)時(shí)流速為3kn，試問(wèn)頂 流時(shí)該船對(duì)水速度是 多少? A．15 kn B．12kn C．9kn D．3kn 13．某輪頂流航行，船速15 節(jié)，流速2 節(jié)，2 小時(shí)后相對(duì)計(jì)程儀讀數(shù)差為28.’0，計(jì)程儀改正率-10％，則該輪對(duì)水航程為_(kāi)_________ A．25.’2 B．29.’2 C．21.’2 D．30.’8 14.下列哪個(gè)不是基準(zhǔn)比例尺的取值方法：

A.圖上某一點(diǎn)的局部比例尺 B.圖上某經(jīng)線的局部比例尺 C.圖上某緯線的局部比例尺 D.圖外某基準(zhǔn)緯度的局部比例尺

15.平面投影又稱方位投影，其中透視點(diǎn)在球心的心射投影在航海上主要被用來(lái)繪制 _ ______。A．半球星圖 B．大圓海圖 C．航路設(shè)計(jì)圖 D．B+C 16..航向?yàn)?70o時(shí)，恒向線與_______重合.A．格林子午線圈 B．子午線圈 C．赤道 D．等緯圈

17.在同一張墨卡托海圖上，設(shè)1 855m 的地面長(zhǎng)度的赤道圖長(zhǎng)為lcm，則在30o緯度線上，1 855m 地面長(zhǎng)度的圖長(zhǎng)約為_(kāi)________ A．lcm B．0.866cm C．1.155cm D．0.5cm 18.高斯投影僅適宜用來(lái)描繪軸子午線 的狹長(zhǎng)地帶。

A．經(jīng)差大、緯差小 B．經(jīng)差小、緯差大 C．經(jīng)差大、緯差大 D．經(jīng)差小、緯差小.19..海圖圖幅是指__________ A．海圖圖紙的尺寸 B．海圖內(nèi)廓界限尺寸 C．海圖外廓界限尺寸 D．印刷海圖的圖版尺寸 20.海圖上所標(biāo)干出高度是指________ A．物標(biāo)高出海底的高度 B．海圖深度基準(zhǔn)面以上的高度 C．平均海面以上的高度.D．平均大潮高潮面以上的高度 21.海圖水面處帶下劃線的數(shù)字表示_________ A．干出高度 B．深度不準(zhǔn)或采自舊水深資料或小比例尺圖的水深

C．測(cè)到一定深度尚未著底的深度 D．實(shí)測(cè)水深或小比例尺海圖上所標(biāo)水深 22..海圖圖式“cS”表示該區(qū)地質(zhì)為_(kāi)______ A．軟泥 B．粗沙 C．淤泥 D．巖石 23..暗礁是指______ A．平均大漸高潮時(shí)露出的孤立巖石 B．平均大潮高潮面下，深度基準(zhǔn)面以上的孤立巖石 C．深度基準(zhǔn)面適淹的礁石 D．深度基準(zhǔn)面以下的孤立巖石 24.凡危險(xiǎn)物外加點(diǎn)線圈者，表示__________。

A．對(duì)水面航行有礙的危險(xiǎn)物

B．位置未經(jīng)精確測(cè)量的危險(xiǎn)物

C．危險(xiǎn)物的位置有疑位

D．危險(xiǎn)物的存在有疑位

25.英版海圖圖式中，縮寫(xiě)“Lt Ho”代表__________。

A．沉船

B．燈塔

C．大型助航浮標(biāo)

D．深吃水航路 26.英版海圖、圖書(shū)代銷店負(fù)責(zé)其所銷售________ A．海圖的永久性通告的改正 B．海圖的所有通告的改正 C．所有圖書(shū)資料的改正 D．海圖和燈標(biāo)表的改正 27.要了解某張海圖的現(xiàn)行版日期時(shí)町查閱________ Ⅰ、航海圖書(shū)總目錄；Ⅱ、英版航海通告累積表；Ⅲ、英版航海通告年度摘要；Ⅳ、季 末版航海通告 A．Ⅰ、Ⅱ B．Ⅱ、III C．Ⅲ、IV D．以上都是 28.光柵海圖由紙質(zhì)海圖經(jīng)數(shù)字化處理形成，下列有關(guān)光柵海圖的說(shuō)法何者正確? A．使用時(shí)可任意放大或縮小.B．受顯示器性能影響，無(wú)法任意縮放 C．受原圖比例尺所限，不能任意放大 D．受原圖圖幅所限，無(wú)法任意放大 29.我國(guó)海圖作業(yè)規(guī)則規(guī)定，海圖作業(yè)時(shí)，應(yīng)在計(jì)劃航線（推算航線）上標(biāo)注下列哪些內(nèi)容？ I、計(jì)劃（推算）航跡向；II、羅航向；III、羅經(jīng)差；IV、風(fēng)流壓差；V、船位差；VI、風(fēng)流資料 A．I~III B．I~IV C．I~V D．I~VI 30.偏蕩可能使風(fēng)壓差________。

A．增大 B．減小 C．有時(shí)增大有時(shí)減小 D．既不增大也不減小 31.若航向誤差為1°，當(dāng)航行50海里后船位偏移量為_(kāi)_________。

A．0.87海里

B．1.7海里

C．7／2海

D．3／4海里

32.把一定時(shí)間內(nèi)測(cè)得的幾個(gè)觀測(cè)船位，用平差的方法以直線“連接”。該直線的方向與真航向之差即為風(fēng)流壓差，這種測(cè)定風(fēng)流壓差的方法為：

A．連續(xù)定位法 B．疊標(biāo)導(dǎo)航法 C．雷達(dá)觀測(cè)法 D．物標(biāo)最小距離方位與正橫方位法 33.用雷達(dá)觀測(cè)法實(shí)測(cè)風(fēng)流壓差，調(diào)整電子方位線與固定弧立物標(biāo)相對(duì)運(yùn)動(dòng)軌跡平行，如

電子方位線偏在航向線右面5o，羅經(jīng)差2oE，則實(shí)測(cè)風(fēng)流壓差為： A．+5o B．-5o C．+3o D．-3o

34.某輪陀羅航向030o，航行中用雷達(dá)測(cè)得物標(biāo)距離最近時(shí)的陀羅方位為117o，陀羅差2oW，則實(shí)測(cè)風(fēng)流壓差為： A．+3o B．-3o C．+5o D．-5o 35.中分緯度是：

A．平均緯度 B．東西距與經(jīng)差的比值 C．起航點(diǎn)與到達(dá)點(diǎn)子午線之間等緯圈等于東西距的緯度 D．起航點(diǎn)與到達(dá)點(diǎn)的平均緯度 36.某輪從（10o30’N、115o30’E）航行到（20o30’N、130o30’E），則應(yīng)駛的恒向線航向?yàn)椋篈．124o.7 B．235o.3 C．304o.7 D．055o.3 37.在海圖對(duì)景圖下標(biāo)有“方位090o，14n mile”，表明對(duì)景圖上的山形是： A．從該物標(biāo)的正東14 海里向東所看到的形狀 B．從該物標(biāo)的正西14 海里向東所看到的形狀 C．從該物標(biāo)正東14 海里向西所看到的形狀 D．從該物標(biāo)正西14 海里向西所看到的形狀

38.某船在航行中用六分儀觀測(cè)未知高度的物標(biāo)垂直角α=45′，用雷達(dá)測(cè)得船與物標(biāo)的水平距離是12海里，則未知物標(biāo)的高度應(yīng)為多少？

A.281m B.291m C.295m D.300m 39.夜間利用兩方位進(jìn)行定位時(shí)，應(yīng)先測(cè)：

A．閃光燈 B．定光燈 C．紅光燈 D．綠光燈 40.在下列定位法中，一般最準(zhǔn)確的方法是：

A．兩物標(biāo)方位定位B．單物標(biāo)方位距離定位C．三物標(biāo)方位定位D．兩物標(biāo)距離定位 41.特殊方位移線定位屬于：

A．方位定位 B．距離定位 C．方位距離定位 D．A．B 都對(duì) 42.以兩天極為起止點(diǎn)且通過(guò)格林天底的半個(gè)大圓稱：

A．測(cè)者子圈 B．測(cè)者午圈 C．格林子圈 D．格林午圈 43.天體半圓方位是從 起算。

A．北點(diǎn) B．南點(diǎn) C．東點(diǎn) D．A 或B

44.在周日視運(yùn)動(dòng)中，當(dāng)天體赤緯Dec>90°-?，且Dec 與? 同名，則該天體：

A．永不升出 B．永不降沒(méi) C．升出時(shí)間大于降沒(méi)時(shí)間 D．降沒(méi)時(shí)間大于升出時(shí)間 45.春分點(diǎn)和秋分點(diǎn)是：

A．天赤道與真地平圈的兩交點(diǎn) B．天赤道與測(cè)者子午圈的兩交點(diǎn) C．黃道與白道的兩交點(diǎn) D．黃道與天赤道的兩交點(diǎn) 46.“春季星空”是以赤經(jīng)等于 為中心線展開(kāi)的星空。A．0 o B．90 o C．180 o D．270 o

47.一個(gè)恒星日與一個(gè)太陽(yáng)日的長(zhǎng)短不一致的主要原因是：

A．地球自轉(zhuǎn) B．地球自轉(zhuǎn)的速度不均勻 C．地球公轉(zhuǎn) D．地球公轉(zhuǎn)的速度不均勻 48.天文航海所采用的對(duì)時(shí)信號(hào)是：

A．UT0 B．UT1 C．UT2 D．UTC 49..船舶由西向東過(guò)日界線，船鐘應(yīng)： A．不撥 B．撥快1 小時(shí) C．撥慢1 小時(shí) D．撥至和世界時(shí)一致 50.月赤緯等于0°時(shí)的潮汐特征為：

A．相鄰的兩個(gè)高潮潮高相等 B．漲落潮時(shí)間相等 C．相鄰的兩個(gè)低潮潮高相等 D．以上三者都對(duì) 51.當(dāng)潮汐為回歸潮時(shí)，潮汐現(xiàn)象表現(xiàn)為：

A．周日不等最顯著 B．周日不等最小 C．半日不等現(xiàn)象最顯著 D．半日不等現(xiàn)象最小 52.以下哪種不屬于中版潮汐表內(nèi)容？

A．主港潮汐預(yù)報(bào)表 B．潮流預(yù)報(bào)表 C．調(diào)和常數(shù)表 D．差比數(shù)和潮信表

53.在利用中版《潮汐表》第一冊(cè)求某附港潮汐時(shí)，已知主、附港的平均海面季節(jié)改正分 別是23cm 和35cm，求附港潮高應(yīng)用： A．附港潮高=主港潮高?潮差比+改正值

B．附港潮高=主港潮高?潮差比+改正數(shù)+潮高季節(jié)改正數(shù)

C．附港潮高=[主港潮高-（主港平均海面+主港平均海面季節(jié)改正）] ?潮差比+（附港平均海面+附港平均海面季節(jié)改正）D．以上均不能用

54.我國(guó)某地的大潮升為4.5 米，小潮升為3.1 米，平均海面2.5m。則初三的低潮潮高約為： A．1.4 米 B．0.5 米 C．1.9 米 D．2.0 米

55.利用英版《潮汐表》求某附港潮汐，可首先從 查該附港的編號(hào)，然后根據(jù) 編號(hào)在潮時(shí)湊巧民潮高差表中查得所需資料。

A ．主港索引 B．目錄 C．地理索引 D．輔助用表 56.已知主港高潮時(shí)為0913，且主附港時(shí)差資料為

Time Difference High Water Low Water 0000 0600 0000 0600 主港 and and and and 1200 1800 1200 1800 附港潮時(shí)差-0030-0050-0020-0015 則對(duì)應(yīng)該主港高潮時(shí)的附港潮時(shí)差為：

A．-0018 B．0018 C．-0039 D．0039 57..英版《潮汐表》的“潮流預(yù)報(bào)表”中，往復(fù)流給出。I、轉(zhuǎn)流時(shí)間；II、最 大流速；III、最大流速時(shí)間；IV、流向；V、預(yù)報(bào)位置；VI、包括海流

A．I~V B．I~VI C．I~III D．I~III，V 58.半日潮港，漲潮箭矢上標(biāo)注4kn，則該處小潮日漲潮流第二小時(shí)內(nèi)的平均流速為： A．2/3kn B．4/3kn C．8/3kn D．2kn 59.航標(biāo)的主要作用是：I、指示航道；II、供船舶定位；III、標(biāo)示危險(xiǎn)區(qū)；IV、供特殊需要 A．I、II B．II、III C．III、IV D．I~IV 60.菲律賓沿海右側(cè)標(biāo)的頂標(biāo)特征為：

A．紅色罐形 B．紅色錐形 C．綠色罐形 D．綠色錐形

61.IALA 浮標(biāo)制度A 區(qū)域中，紅色中間有一道綠色橫紋的浮標(biāo)可配備：

A．單個(gè)紅色罐形頂 B．單個(gè)紅色錐形頂標(biāo) C．單個(gè)綠色罐形頂標(biāo) D．單個(gè)綠色錐形頂標(biāo) 62.在平面心射投影圖上，連接出發(fā)點(diǎn)與到達(dá)點(diǎn)之間的直線為： A．等角航線 B．恒向線 C．大圓航線 D．雙曲線

63.在南半球，若兩點(diǎn)間的大圓始航向?yàn)?45 o，則恒向線航向： A．大于045 o B．等于045 o C．小于045 o D．不一定 64.某船由32 o02’S，115 o10’E 航行到6 o39’N，79 o30’E，則相應(yīng)的大圓航程為： A．3089 n mile B．3210 n mile C．3189 n mile D．3310 n mile 65.下列有關(guān)航線選擇的說(shuō)法中，何種正確？

A．航程最短，不一定航時(shí)最省 B．應(yīng)盡可能使船舶一路順風(fēng) C．充分考慮流的順逆，可不考慮風(fēng)的情況 D．應(yīng)盡可能使船舶一路順流

66.某輪燃油儲(chǔ)備980t，以23kn 速度航行3000n mile 后還剩燃油600t，如要求再航行1200nmile 后還剩燃油500t，則該輪應(yīng)采用多大速度航行？ A．21kn B．20kn C．18.7kn D．17.3kn 67.船舶在冰區(qū)航行，螺旋槳在下列哪種情況下，對(duì)船舶航行安全較為有利？ A．螺旋槳2/3 沒(méi)在水中 B．螺旋槳1/3 沒(méi)在水中 C．螺旋槳盡可能沒(méi)在水中 D．螺旋槳1/2 沒(méi)在水中 68.擬定航線的依據(jù)是：

A．現(xiàn)行版航海圖書(shū)資料 B．水文氣象條件 C．本船技術(shù)狀態(tài) D．以上都是

69.擬定沿岸航線，確定航線離危險(xiǎn)物的安全距離時(shí)，應(yīng)考慮下列哪項(xiàng)因素？I、風(fēng)流對(duì)航 行的影響；II、船員技術(shù)水平；III、有無(wú)避險(xiǎn)物標(biāo)；IV、危險(xiǎn)物的測(cè)量精度 A．I~II B．I~III C．I~IV D．I、II、IV 70.單一船位線與計(jì)劃航線平行時(shí)，一般可用來(lái)判斷：

A．推算船位偏離航線的誤差 B．推算航程的誤差 C．推算船位的誤差 D．觀測(cè)船位的誤差

71.利用浮標(biāo)導(dǎo)航，兩浮標(biāo)間距離為5 n mile，當(dāng)?shù)谝桓?biāo)位于船舶正橫時(shí)測(cè)得下一浮標(biāo)舷 角為2o，則船舶通過(guò)下一浮標(biāo)時(shí)，該浮標(biāo)正橫距離為： A．1.75 鏈 B．1.25 鏈 C．1.88 鏈 D．2.29 鏈

72..某輪在狹水道航行，計(jì)劃航向100o，選擇航線正后方某單一物標(biāo)進(jìn)行導(dǎo)標(biāo)方位導(dǎo)航，如航行中實(shí)測(cè)該導(dǎo)標(biāo)羅方位278o，該輪磁差4oE，自差2oW，則該輪應(yīng)： A．向左調(diào)整航向 B．向右調(diào)整航向 C．保持原航向 D．無(wú)法確定 73.利用平行方位線轉(zhuǎn)向，自轉(zhuǎn)向物標(biāo)所作為的方位線應(yīng)：

A．與原計(jì)劃航線垂直B．與新計(jì)劃航線垂直C．與原計(jì)劃航行平行D．與新計(jì)劃航線平行 74.采用方位避險(xiǎn)，如所選避險(xiǎn)物標(biāo)和危險(xiǎn)物同在航線右側(cè)，且避險(xiǎn)物位于危險(xiǎn)物前方，避險(xiǎn)方位為060o，陀羅經(jīng)2oW，則在下列哪種情況下表明船舶不存在航行危險(xiǎn)？

A．實(shí)測(cè)陀羅方位060o B．實(shí)測(cè)陀羅方位058o C．實(shí)測(cè)真方位062o D．以上都不存在危險(xiǎn) 75.島礁區(qū)航行，利用物標(biāo)“開(kāi)門(mén)”和“關(guān)門(mén)”的方法轉(zhuǎn)向、避險(xiǎn)，其實(shí)質(zhì)是利用 來(lái) 轉(zhuǎn)向避險(xiǎn)。

A．方位位置線 B．方位疊標(biāo)位置線 C．距離位置線 D．距離疊標(biāo)位置線

76.我國(guó)船舶交通管理系統(tǒng)安全監(jiān)督管理的主管機(jī)關(guān)是：A、國(guó)家海事局

B、地方港務(wù)局

C、國(guó)家海洋局

D、交通部

77.羅蘭C 脈沖組中8 個(gè)脈沖的包絡(luò)與載波初相之間的關(guān)系，按規(guī)定順序變化的編碼稱為 A.相位編碼 B.保密編碼 C.時(shí)間編碼 D.副臺(tái)延時(shí) 78.GPS衛(wèi)星導(dǎo)航系統(tǒng)中所使用的P碼是__________的偽隨機(jī)碼。

A．快速、短周期 B．低速、短周期 C．低速、長(zhǎng)周期 D．快速、長(zhǎng)周期 79.在GPS衛(wèi)星導(dǎo)航系統(tǒng)中，多徑效應(yīng)屬于__________。

A．幾何誤差 B．信號(hào)傳播誤差 C．衛(wèi)星誤差 D．衛(wèi)星導(dǎo)航儀誤差 80.GPS衛(wèi)星導(dǎo)航定位是顯示2D字符表示：

A 二維定位

B 三維定位

C 差分GPS二維定位

D 差分GPS三維定位

81.船載AIS按照自身程序發(fā)送其船舶信息，自動(dòng)解決與其他船沖突問(wèn)題，適用于所有海域的工作模式稱為：自主連續(xù)模式

指定模式 查詢模式

A 1

B 2

C 3

D 2 3 82.對(duì)雷達(dá)波反射性能較好的物標(biāo)形狀為-------。

A平板形物體 Ｂ角反射器 C 球形物體 D 圓柱形物體

83.遠(yuǎn)處小島上有兩個(gè)橫向分布的陡峰，間距為1海里，海面以上高度均為36米，本船雷 達(dá)天線海面以上高度為16米，本船駛近該島_______海里內(nèi)時(shí)，小島回波將成為一個(gè)回波 A.6 B.8 C.16 D.20 84.雷達(dá)使用圓極化天線后可以 ______ A.抑制雨雪干擾 B.可能丟失對(duì)稱體物標(biāo)回波 C.探測(cè)能力下降約50% D.以上均對(duì)

85.雷達(dá)熒光屏上的間接反射回波通常出現(xiàn)在______ A.陰影扇形內(nèi) B.船首標(biāo)志線上 C.船尾線方向上 D.盲區(qū)內(nèi) 86.改變量程段時(shí)，雷達(dá)熒光屏上二次掃描回波將--------。

A 方位改變 B 距離改變 C 改變?cè)谄辽系奈恢茫珳y(cè)得的距離不變 D A+B 87.為減小雷達(dá)測(cè)距船位誤差，在測(cè)量遠(yuǎn)處山峰回波時(shí)，應(yīng)該----------。

A 用VRM 內(nèi)緣與回波內(nèi)緣相切 Ｂ用VRM 外緣與回波外緣相切 C 用VRM 內(nèi)緣與回波外緣相切 D 用VRM 外緣與回波內(nèi)緣相切

88.雷達(dá)測(cè)量橫向的岬角、突堤方位時(shí)，應(yīng)該將方位標(biāo)尺線壓住______。Ⅰ、回波邊緣，讀數(shù)減去角向肥大值；Ⅱ、中心；Ⅲ、回波邊緣，讀數(shù)加上角向肥大值 A.Ⅰ、Ⅱ B.Ⅰ、Ⅱ、Ⅲ C.Ⅱ、Ⅲ D.Ⅰ、Ⅲ

89.對(duì)雷達(dá)波反射性能較強(qiáng)的物質(zhì)是---------。

A 海水 Ｂ冰塊 C 巖石 Ｄ金屬板 90.搜救雷達(dá)應(yīng)答器----時(shí)發(fā)射信號(hào)。

A 由人工或自動(dòng)啟動(dòng)后 B 拋入水中后 C 收到雷達(dá)脈沖激發(fā)后 D A+C 91.電磁計(jì)程儀的傳感器所輸出的電信號(hào)與船舶相對(duì)于水的速度成。A．指數(shù)關(guān)系 B．對(duì)數(shù)關(guān)系 C．正比關(guān)系 D．反比關(guān)系

92.聲相關(guān)計(jì)程儀的設(shè)計(jì)跟蹤深度為200米，若航行區(qū)域的水深50米，則該計(jì)程儀所測(cè)得的速度為_(kāi)_______。A．絕對(duì)速度 B．相對(duì)速度 C．相對(duì)速度或絕對(duì)速度 D．零

93.船用回聲測(cè)深儀在富裕水深不太大的情況下，測(cè)得的水深往往是———到船底的水深 A.海底淤泥層 B.海底混響層 C.海底硬土層 D.海底深處巖石層 94.磁羅經(jīng)磁矩減小將引起________。

A．停滯角加大，擺動(dòng)周期減小B．停滯角減小，擺動(dòng)周期加長(zhǎng) C．停滯角加大，擺動(dòng)周期加長(zhǎng)D．停滯角減小，擺動(dòng)周期減小 95.磁羅經(jīng)白差隨航向變化的原因是________。

A．觀測(cè)不準(zhǔn)確 B．磁羅經(jīng)結(jié)構(gòu)有缺陷

C．船所在地區(qū)有磁場(chǎng)異常現(xiàn)象 D．各種自差力與羅經(jīng)航向有不同的函數(shù)關(guān)系 96.要完成指向功能，陀螺羅經(jīng)的靈敏部分通常由________組成。

A．陀螺儀 B．陀螺儀的控制設(shè)備 C．陀螺儀的阻尼設(shè)備 D．A+B+C 97.陀螺羅經(jīng)的基線誤差是指羅經(jīng)基線與船首尾線_____，而由此產(chǎn)生____的誤差。

A．平行，偏離真北 B．不平行，偏離真北 C．平行，指向 D．不平行，指向 98.在船舶緯度和速度變化_______范圍時(shí)，應(yīng)重新調(diào)整羅經(jīng)的緯度誤差和速度誤 差旋鈕。

A．根據(jù)船舶的瞬時(shí)緯度和航速進(jìn)行校正 B．每當(dāng)緯度變化1°，航速變化l節(jié)校正一次 C．每當(dāng)緯度至多變化5°，航速至多變化5節(jié)校正一次D．對(duì)緯度和航速的變化無(wú)具體要求 99.海圖上兩疊標(biāo)線標(biāo)注的方位為168 o，當(dāng)船舶發(fā)現(xiàn)兩疊標(biāo)重合時(shí)，用標(biāo)準(zhǔn)羅經(jīng)測(cè)前疊標(biāo)的真方位170 o，那么羅經(jīng)差為：

A +1 o B –1 o C + 2 o D –2 o

100.觀測(cè)低高度太陽(yáng)方位求羅經(jīng)差，《太陽(yáng)方位表》的查表引數(shù)是________ A.緯度，赤緯，視時(shí) B.緯度，赤緯，世界時(shí)

C.緯度，赤緯，平時(shí) D.緯度，半圓地方時(shí)角，赤緯

第二篇：航海英語(yǔ)50期海船船員適任統(tǒng)考試題（精選）

航海英語(yǔ)50期

1,[2286]Some of these shoals have been disproved and are not charted．Nevertheless mariners should ______ with particular caution in this area．

A.go

B.proceed

C.move

D.remove

KEY: B 2,[136]Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? A.List of Lights B.Coast Pilot C.Sailing Directions

D.List of Radiobeacons

KEY: A 3[247]A red triangular daymark marks ______.A.the centerline of a navigable channel

B.the starboard side of a channel C.a prominent object of navigational interest that has no lateral significance D.an area of a channel where passing another vessel is permitted

KEY: B 4[293]What information is found in the chart title? A.Date of the first edition

B.Date of the edition and，if applicable，the revision C.Information on the sounding datum D.Information on which IALA buoyage system applies

KEY: C 5[284]The maximum difference between mean time and apparent time is ______.A.equal to the longitude expressed in time units

B.about 16 minutes

C.the difference between the GHA of mean sun and the first point of Aries D.15°of arc

KEY: B 6[279]The chart of a beach area shows a very flat slope to the underwaterbeach bottom.What type of breakers can be expected when trying to land aboat on this beach? A.Surging

B.Spilling

C.Plunging

D.Converging

KEY: B 7,the broken magenta lines starting at Mountank point and running generally ENE to Bloci Island indicate ________ A recommended tracks to Block Island

B a submerged cable area

C a military exercise area

D demarcation lines for application of the COLREGS 8 navigate with ____ small fishing boats are within 0.8miles of me A carefulil

B skill

C concern

D caution

9[469]Mariners are FIRST warned of serious defects or important changes toaids to navigation by means of ______.A.marine broadcast Notice to Mariners B.Weekly Notices to Mariners C.corrected editions of charts

D.Light Lists

KEY: A 10[353]All events relating to the voyage，such as ship's position，speed and details of the weather，are recorded in ______.同原題庫(kù)2246 A.Logbook

B.Bell Book

C.Oil Record Book

D.Compass Error Book KEY: A所有與航次有關(guān)的事件，諸如船位，航速和氣象的詳細(xì)資料都被記錄在航海日記中。

11[377]Prior to burning or welding on a fuel tank on a ship, regulations require that an inspection

be made.An entry in the unofficial logbook is required if this inspection is made by ______.A.a marine chemist

B.the Officer in Charge, Marine Inspection C.the Master or person in charge of the ship

D.the National Fire Protection Association KEY: C在船上燃油艙燒焊之前，規(guī)則要求進(jìn)行檢查。假如檢查由船長(zhǎng)或船舶負(fù)責(zé)的人員完成，則要求記錄非正式航海日志

12[622]I have ______ damage below water line.同原題庫(kù)0327 A.large B.big C.important D.major

KEY: D我船水線下有較大的損壞。

13_____ the torn bags of castor seeds you mentioned we have already replaced them by new ones.A regard B regards C regarded

D regarding 14who checks the bridge clokc for accuracy each day? A third officer

B second officer

C chief officer

D assistant officer 15 Which signal of the follwings is not provided with onboard lifeboat? A.Rocket parachute signals

B.Buoyant smoke signals

C.Hand flare signals

D.Self-igniting signals 答案：D下列哪種信號(hào)在救生艇上不配備？自動(dòng)點(diǎn)火信號(hào) 16[5405]A qualified deck officer should be ______ the watch．

A.in charge of B.arranged C.decided to D.the depth of

KEY: A 17.Emergency compressed air breathing escape sets onboard, shall have a duration of service no less than _____.A.20 minutes B.15 minutes C.10 minutes D.5 minutes答案：B船上應(yīng)急壓縮空氣呼吸逃生裝置使用時(shí)間不少于15分鐘

18114.According to SOLAS the breathing air apparatus that must be onboard shall have sufficient capacity for how many minutes of operation?

A.20

B.30

C.45

D.60 答案：B根據(jù)SOLAS公約，船上必須配備的呼吸器裝置應(yīng)該有足夠的能力支持多少分鐘？ 19 127.Where should you record the crude oil washing after completion? A.Oil Record Book B.Cow manual C.Pumping Log D.Inter plant manual答案：A完成原油洗艙后你需要記錄什么？油料記錄簿 83.Shipboard Emergency Drills must be carried out at least_____? A.Once every third year B.Once a month C.Once a year D.Once a week 答案：B船舷應(yīng)急計(jì)劃必須執(zhí)行至少每一個(gè)月一次

21,In anchoring orders , UP AND DOWN means____(老題庫(kù)上的題)A the chain is not upright

B the chain is tight C the chain is upright

D the chain is slack 22 it is all right to rig the pilot ladder on lee side_____ A to allow port Authorities to board B allowing port Authorities to board C to allow port Authorities boarding D allowing port Authorities to be boarded 23[4777]A spring line is ______.A.any wire rope used for mooring B.a fire-warp C.a mooring line running diagonally to the keel

D.a mooring line perpendicular to the keel

KEY: C 24[1317] Vessel towing with the current shall ____ tow more than two boats and they must be towed

alongside.A.at times

B.at any time

C.at no time

D.at moment 25[1868] Your ship is steaming at night with the gyropilot engaged.You notice that the vessel’s course is slowly changing to the right.Which action should you take FIRST?______.A.Notify the engine room of the steering malfunction.B.Change to hand steering.C.Call the Master

D.Send the Quartermaster to the emergency steering station.26when you are steering on a pair of range lights and find the upper light is in line above the lower light ,you should _____ A continue on the present course B come left C come right

D wait until the lights are no longer in a vertical line 27[1685] Which vessel is underway according to the Rules?______ A.A vessel made fast to a single point mooring buoy

B.A purse seiner hauling her nets C.A pilot vessel at anchor

D.A vessel which has run aground 28[2458]A vessel is in sight of another vessel when ______.A.she can be observed by radar

B.she can be observed visually from the other vessel C.she can be plotted on radar well enough to determine her heading D.her fog signal can be heard

KEY: B 29 0365 Every vessel shall at all times maintain a proper lookout ______.A.By sight.B.By sight and hearing.C.By sight and hearing as well as by all available means appropriate to the prevailing circumstances.D.By sight and hearing as well as by all available means except smelling.KEY：C每一船舶應(yīng)一直通過(guò)視覺(jué)，聽(tīng)覺(jué)和一切適用于當(dāng)時(shí)環(huán)境的適合手段保持適當(dāng)?shù)牧送?老題庫(kù))30[1475] When is a stand-on vessel FIRST allowed by the Rules to take action in order to avoid collision? A.When the two vessels are less than half a mile from each other.B.When the give-way vessel is not taking appropriate action to avoid collision.C.When collision is imminent.D.The stand-on vessel is never allowed to take action.31[210]A light signal consisting of three flashes means ______.A.I am in doubt as to your actions

B.My engines are full speed astern C.I desire to overtake you

D.I am operating astern propulsion

KEY: D 32[2703]______ means the curve on the earth's surface which cuts all the meridians at the same angle．

A.Great Circle B.Position Line C.Rhumb line D.True Bearing

KEY: C 33[1749]Which word indicates color variation in the characteristics of a light? A.Opposing B.Changing C.Reversing

D.Alternating---交替的，交流的，互光的，互光（指周期性變色的航標(biāo)燈）

KEY: D哪一個(gè)詞說(shuō)明燈光特性中的顏色變化？互光 34[2674]A SEAMARK，I.E.A BUOY，INDICATING THE NORTH，EAST，SOUTH OR WEST FROM A FIXED POINT，E.G.A WRECK is ______.A.Entrance buoy

B.New buoy C.Port buoy D.Cardinal buoy

KEY: D

35[821] Mean high water is the average height of ______ A.the higher high waters B.the lower high waters C.the lower of the two daily tides D.all high waters 36[149]The meaning of ebb tide is that ______.A.tide is falling from high water to low water

B.tide is rising from low water to high water

C.tide is reaching to a highest level

D.tide is reaching to a lowest level

KEY: A 37[5569]After transferring a weight forward on a vessel，the draft at the center of flotation will ______.A.change，depending on the location of the LCG

B.increase C.decrease D.remain constant

KEY: D 38[5575]If the buoyant force on a ship's hull is equal to the displacement tonnage，the ship will ______.A.require ballast

B.be down by the head C.sink D.float

KEY: D 39[5588]Reducing the liquid free surfaces in a vessel reduces the ______.A.roll period B.metacentric height

C.waterplane area D.vessel's draft

KEY: A 40 2116 How should you signal the crane operator to raise the boom?(老題庫(kù))A.Extend arm with the thumb pointing up and flex the fingers in and out.B.Place both fists in front of the body with the thumbs pointing upward.C.With forearm vertical and forefinger pointing up, move hand in small horizontal circles.D.Extend arm with fingers closed and point thumb upward.(D你應(yīng)怎樣指揮起貨機(jī)手提升吊桿？伸開(kāi)臂膀手指握緊拇指向上)41 71.Where is the draft largest when the ship has an aft trim?

A.Forward

B.Aft

C.Midships

D.The drafts are equal all over the ship 答案：B當(dāng)船舶尾傾時(shí)最大吃水在哪里？船尾

[3207]Filler cargo refers to ______.A.durable packages

B.small pieces C.the cargo in which the voids appear D.the cargo suitable for stowage in void spaces

KEY: D 43[3221]Strong smelling cargo should be stowed ______ the cargo absorbing foreign smell．

A.together with B.on top of C.underneath D.away from

KEY: D 44[4388]The damaged cargo is not allowed to export without ______.A.repairing or replacing

B.to repair or to replace C.being repaired or replaced

D.to be repaired or replaced

KEY: C 45[4028]The Agent promised to keep me ______ of how our business was going on．

A.to be informed B.informed C.on informing D.informing

KEY: B 461993 The man directing and supervising the work of stevedores is the ______.(老題庫(kù))

A.Local agent.B.Watchman.C.Docker.D.Foreman.指導(dǎo)和監(jiān)督碼頭工人工作的人是工頭。

471267 The tropical cyclone eastly 10 knots and expected ______ from 120000 GMT.A.Falling down.B.Fixing up.C.Filling up.D.Dropping down.熱帶氣旋以10節(jié)的速度向偏東方向移動(dòng)并預(yù)計(jì)自世界時(shí)12日0000起開(kāi)始填塞。

48[1292] TYPHOON FORECAST MOVE 285 DEG 15 KNOT FIRST 12 HOURS THEN 280 DEG17 KNOTS NEXT 12 HOURS.The movement of the Typhoon is in ______ quadrant.A.NE

B.SE

C.NW

D.SW 49[2820]Swell is the rise and fall of the ocean's surface due to ______.A.fetch B.distant winds C.local storms D.the pull of the moon

KEY: B 50[331]Fog is most commonly associated with a(n)______.A.warm front at night B.low pressure area C.anticyclone D.lack of frontal activity

KEY: A 51[3422]In most cases，the direction of the apparent wind lies between the bowand ______.A.the direction of the true wind B.true north C.the beam on the windward side D.the beam on the lee side

KEY: A 52[3479]The inner bottom is the ______.A.tank top

B.compartment between the tank top and shell of the vessel C.inner side of the vessel's shell

D.space between two transverse bottom frames

KEY: A 53______ is halfway between the forward and after perpendiculars and is reference point for vessel construction

A half length B mid_body C center line D amidships 54119.Watertight compartments are separated by _____.A.Longitudinal bulkheadB.Tween decks C.Dunnages D.Decks and bulkheads

答案：D水密艙被墊板分開(kāi)

55[823]The material used extensively as electrolytic protection around bronze propellers is ______.A.Brass B.Copper C.Lead D.Zinc

KEY: D 56[3560]Before starting any diesel or gasoline engine，which of the followingmust be checked? A.Oil level B.Flow of cooling water C.Exhaust discharge D.All of the above

KEY: A 57[5295]The holding capability of an anchor is primarily determined by the ______.A.shape of the anchor

B.stowage of the anchor on board C.anchor's ability to dig in D.size of the vessel and its draft

KEY: C 58.A Racon can help with __? A.measuring the distance B.measuring the relative C.identifying centimeters D.identifying a seamark

59.[3872]The radio waves used for radar are very short，only ______ long．

A.a few centimeters B.a few fathoms C.a few meters D.a few feet

KEY: A 60.103.What type of radar can activate a racon? A.X-band radar B.S-band radar C.C-band radar D.No radar can答案：A什么類型的雷達(dá)能激活雷達(dá)信標(biāo)？X波段的雷達(dá)

61.[3910]Magnetic variation changes with a change in ______.A.the vessel's heading B.sea conditions C.seasons D.the vessel's position

KEY: D 62.[3818]Deviation is the angle between the ______.A.true meridian and the axis of the compass card B.true meridian and the magnetic meridian C.magnetic meridian and the axis of the compass cardD.axis of the compass card and the degaussing meridian

KEY: C

63.[15]Which one of the followings is incorrect about magnetic compass? A.The magentic compass is compulsory on my vessel

B.The magentic compass is prone to error C.The magentic compass is always placed inside steel constructions

D.The magentic compass needs to be calibrated to compensate for local magnetic distortion 答案：C關(guān)于磁羅經(jīng)下面哪項(xiàng)是不正確的？磁羅經(jīng)總是放在剛性結(jié)構(gòu)里面

64.With respect to automatic identification systems(AIS)which of the following information is broadcast every one to ten seconds?A.Vessel’s draft B.Air Draft C.Navigational status D.Dimensions of vessel

65.123.In case of AIS overload, what can you expect? A.AIS will shut down B.AIS will “freeze” C.Largest far away drop out D.Closes targets drop out 答案：C如果AIS超負(fù)荷，你能預(yù)料到什么？最大遠(yuǎn)離到退出 66.[17]What may affect the accuracy of sounding with echo sounder? A.Sea bottom B.Ship's speed C.Speed of current D.Water temperature and density 答案：D什么會(huì)影響回聲探測(cè)儀的精度？水的溫度和密度

67.[1625] Which piece of required GMDSS equipment is the primary source of transmitting locating signals? A.Radio Direction Finder

B.An EPIRB transmitting on 406 MHz C.Survival Craft Transceiver

D.A SART transmitting on 406 MHz 68.[588] How can the SART’s audible tone monitor be used?______.A.It informs survivors that assistance may be nearby.B.It informs survivors when the battery’s charge condition has weakened.C.It informs survivors when the SART switches to the standby mode.D.It informs survivors that a nearby vessel is signaling on DSC.69.[180]The pilot {embarked} the ship at 1830 hours． A.boarded B.left C.piloted D.loaded

KEY: A 70.[4194]There is a drifting mine ______ in position 21 degrees 31 minutes North 124 degrees 20 minutes East． A.report B.reports C.reported D.reporting

KEY: C 71.[904] Please tell me ______ to reverse your engine from full ahead to full astern.A.how length will it take B.how long it will take C.how long will it get D.how much hours it will take 72.89.What is the meaning of the word “ROGER” when used in radio communication?

A.Please repeat your message B.Not readable C.Correct D.I have received your transmission satisfactorily

答案：D當(dāng)使用無(wú)線電通信的時(shí)候單詞“明白了”是什么意思？我已經(jīng)滿意的收到了你的傳送

73.[4403]A bollard is found on the ______.A.beach B.Deck C.Pier D.towed vessel

KEY: C 74.[4470]The heel block is located ______.A.at the base of the boom B.at the cargo hook C.near the midships guy D.near the spider band

KEY: A 75.[594] How is the size of chain determined?______.A.Length of link in inches

B.Diameter of metal in link in inches or centimeters C.Links per fathom

D.Weight of stud cable in pounds 76.[226]A mooring line leading 45° to the keel，used to check forward or astern movement of a vessel，is called a ______.A.spring line B.warp line C.bow line D.breast line

KEY: A 77.[4529]Vessel's provisions refer to ______ of the vessel．

A.fuel oil B.vegetables and food C.spare parts on board D.ballast water

KEY: B 78.[5656]A continuous sounding of a fog-signal apparatus indicates ______.A.the vessel is in distress B.the vessel has completed loading dangerous cargo C.it is safe to pass

D.the vessel is anchored

KEY: A 79.[1752]Instructions on how to conduct search and rescue are given in the ______ which is primarily designed for use by merchant ship.同原題庫(kù)3240 A.MARPOL---Marine Pollution B.IRPCS---International Regulations for Prevention of Collisions at Sea C.SOLAS---Safety Of Life At Sea D.MERSAR---Merchant Ships Search And Rescue KEY: D主要被設(shè)計(jì)用于商船的MERSAR上給出了如何指揮搜索和救助的指導(dǎo)。80.[308] After using a CO2 portable extinguisher, it should be ______ A.put back in service if some CO2 remains B.hydrostatically tested

C.retagged

D.recharged 81.[5803]A ROUND THROUGH THE VESSEL CARRIED OUT BY A CREW MEMBER OF THE WATCHAT CERTAIN INTERVALS SO THAT AN OUTBREAK OF FIRE MAY BE PROMPTLY DETECTEDdefines ______.A.Fire patrol B.Fire control C.Smoke detection D.Fire drill

KEY: A

82.What is the meaning of UEL? A.Upper exposure level B.Upper explosion level C.Upper explosive level D.Upper evaporation level答案：C.UEL爆炸上限

83.[4379]Puncture leaks in the lower tubes or bottom of an inflatable liferaftshould FIRST be stopped by using ______.A.sealing clamps B.repair tape C.a tube patch D.sail twine and vulcanizing kit

KEY: A 84[5865]If help has not arrived in 10-12 hours after you abandon a vessel in a survival craft，you should ______.A.go in one direction until the fuel runs out

B.plot a course for the nearest land C.take a vote on which direction you should go D.shut down the engine(s)and set the sea anchor

KEY: D 85.90.What type of oil is most suitable for reducing the effect of heavy seas? A.Crude oil B.Fuel oil C.Vegetable oil D.Lubricating oil

答案：C哪種油最適合減小波濤洶涌的海面的作用？植物油

86When the ship causes oil pollution to the port,she will be______ A、find

B、levied

C、paid

D、deducted [87]In all but the most severe cases，bleeding from a wound should be controlled by _____A_.A.applying direct pressure to the wound B.submerging the wound in lukewarm water C.cooling the wound with ice

D.applying a tourniquet [88]A crew member suffering from hypothermia should be given ___B___.A.a small dose of alcohol B.treatment for shock C.a large meal D.a brisk rub down

一

BISCAY：SW 3 OR 4 INCREASING 6 TO GALE 8，THEN VEERING NW 5．RAIN THEN SHOWERS．MODERATE OR POOR BECOMING GOOD．FINISTERRE： WESTERLY 6，LOCALLY GALE 8，VEERING NW 5．RAIN THEN SHOWERS．MODERATE OR POOR BECOMING GOOD．EAST NORTHERN SECTION：W OR SW 6 TO GALE 8，BUT IN NORTH-EAST CYCLONIC 4 AT FIRST，AND IN NORTH-WEST SOUTHERLY 6 TO GALE 8 AT FIRST．WINTRY SHOWERS．MAINLY GOOD．WEST NORTHERN SECTION：IN NORTH，CYCLONIC 6 TO GALE 8，LOCALLY SEVERE GALE 9，BECOMING VARIABLE 3 OR 4．WINTRY SHOWERS．MAINLY GOOD．MODERATE ICING IN WEST AT FIRST WITH TEMPERATURE-2℃ TO-5℃．IN SOUTH WESTERLY 6 TO GALE 8，LOCALLY SEVERE GALE 9，BACKING SOUTHERLY AND INCREASING LOCALLY STORM 10 LATER．WINTRY SHOWERS THEN SNOW．MAINLY GOOD BECOMING MODERATE． [89].Backing means the wind ____B___．

A．is changing clockwise in direction

B．is changing anticlockwise in direction C．is changing cyclonically or variably in direction D．remains unchanged in direction at the time [90].The visibility in EAST NORTHERN section is mainly ___C____． A．poor

B．moderate

C．GOOD

D．very GOOD [91].In north part of WEST NORTHERN section，the wind is ____A___． A．cyclonic 6 to gale 8 at first B．cyclonic 4 at first C．westly 6 to gale 8 D.variable 3 or 4 at first [92].This passage is likely to be under the heading of ____A____．

A．FORECAST

B．GALE WARNING C．SYNOPSIS

D．STORM WARNING

二

The Chief Officer，or First Mate as he is often called，is the Master's chief officer and head of the Deck Department．He is assisted by a Second Officer（Mate），a Third Officer（Mate），and sometimes a Fourth Officer（Mate）．Several companies employ a First Officer as well as a Chief Officer．The Deck Department also includes a Boatswain（Bosun）and a Carpenter，both petty officers，and a number of ratings．These made up of Able Seamen（AB），Ordinary Seamen（OS）and a middle grade known as Efficient Deck Hands（EDH）．There are other grades of seamen．On some ships Navigating Cadets are carried for training purposes．

The Chief Engineer is head of the Engine Department．He is assisted by a Second，Third，F(xiàn)ourth and sometimes Fifth Engineer．An Electrical Officer may also be carried．The engine room petty officers are the Storekeeper and Donkeyman．On tankers there is also a Pumpman．He is also a petty officer．The engine room ratings are Firemen and Greasers．There may also be Engineer Cadets．

The Catering Department is under the Chief Steward．It is divided into a saloon and galley section．The former is headed by the Second Steward，the latter by the Ship's Cook．They are both usually petty officers．They are assisted by several stewards and cooks，and by a number of junior ratings．

The Radio Department often consists of only one man：the Radio Officer．On ships where continuous radio watches are kept there may be three radio officers：a Chief，Second and Third． [93].____C____ is not a petty officer．

A．Boatswain

B．Second Steward C．Radio Officer

D．Storekeeper [94].EDH is rank which is higher than ____C____．

A．Second Steward

B．AB C．OS

D．Chief Engineer [95].Storekeeper belong to _____B___．

A．Deck Dept

B．Engine Dept C．Catering Dept

D．Radio Dept [96].There are _____D___ departments on bard a big ship according to the passage． A．two

B．three

C．four

D．five

第三篇：A航海英語(yǔ)49期海船船員適任統(tǒng)考試題

航海英語(yǔ)49期

1.You may find the time of slack water after low water in a certain port from ___B__ A.Deadweight scale B.Tide table C.Notice to mariners D.Table of azimuth 2.Many of the lights on this coast are placede so high as to be so frequently obscured by ___D_____ A.Power

B.Tower C.Cover D.Shower 3.A line of position from a celestial obsertion is a segment of a __A____ A.circle of equal altitude B.parallel of declination C.parallel of altitude D.vertical of circle 4.How long would 15 minutes of longitude be at a latitude of 60 degrees North?__D____ A.30nm B,60nm C.15nm D.7.5nm 5.The maximum difference between mean time and apparent time is ___B_____ A.equal to the longitude expressed in time units

B.about 16 minutes C.the difference between the GHA of mean sun and the first point of Aries D.15°of arc 6.The chart of a beach area shows a very flat slope to the underwater beach bottom.What type of breakers can be expected when trying to land a boat on this beach?

B A.Surging B.Spilling C.Plunging D.Converging 7.Which is a weekly publication advising mariners of important matters affecting navigational safety?

B A.Light List B.Notice to Mariners C.Coast Pilot D.Sailing Directions 8.Navigate with _D__.Small fishing boats are within 0.8 mile of me.A.crefull B.skill C.concern D.caution 9.The Admiralty Notices to Mariners can be obtained _A____ by Masters of vessels from any Admiralty Chart Agent． A.free of charge B.with no responsibility C.without limitations of distribution D.with little charges 10.The proper way to correct a mistake in the logbook is to __D__.A.erase the entry and rewrite B.draw several lines through the entry，rewrite，and initial the correction C.completely black out the entry，rewrite，and initial the correction D.draw one line through the entry，rewrite，and initial the correction 11.When a vessel is entering or leaving a port，a record of engine speeds is kept in the __A___.A.bell book B.deck rough log C.Official Logbook D.engine rough log 12.I’d like to know the full __B___ of the accident．

A.particular B.particulars C.in particular D.in particulars 13.The extent of the damage could not be __C___ though I inspected it with the Chief Stevedore in charge.A.sure B.contained C.ascertained D.applied 14.For whom is the ISM Code mandatory? A.All vessels 500 GRT and above B.All tankers C.All vessels built after 1998 D.All vessels on international routes

答案：A誰(shuí)要強(qiáng)制執(zhí)行國(guó)際安全管理規(guī)則？所有500總噸以上的船舶

15.That the __D___ showed that the ship complied with the requirements of the said Convention.A.looking B.seeing C.sightseeing D.inspection 16.If the officer of the watch must leave the voyage plan, he should _____? A.Make a note in the logbook B.Inform the mater C.No special action necessary

D.Check the new plan

答案:B值班駕駛員必須停止航行計(jì)劃他應(yīng)該報(bào)告船長(zhǎng)

17.The Safety of Life at Sea Convention was developed by the ______.A.IMDG conference B.American Bureau of Shipping C.International Maritime Organization D.American Institute of Maritime Shipping 答案： C海上人命安全公約由國(guó)際海事組織提出。

18.The maneuvering information required to be posted in the wheelhouse must bu based on certain conditions.Which of the following is not one of these conditions?

D A.The hull must bu clean B.There must be calm weather-wind 10 knots or less and a calm sea C.There must be no current

D.The depth of the water mest be at least one and one—half times the draft

19.How to determine the density of the slop after tank washing? A.By use of an interferometer B.By use of a hydrometer C.By use of an interface D.By use of a thermometer

答案：B怎樣判斷洗艙后費(fèi)油的密度？通過(guò)使用液體比重計(jì)

20.No oil or mixture containing oil __B___ into Singapore waters from any vessel．

A.shall not be discharged B.shall be discharged C.shall be filled D.shall not be filled 21.What is a CORRECT reply to a pilot’s request,“How’s your heading”? D A.Steady B.Eased to 10 rudder C.Checked D.Passing 50 22.The ideal rope for stoppers should satisfy the following requirements except that _____.A.The stopper should be of synthetic fibre rope B.The size of the stopper should be as large as possible C.The stopper should be of low stretch material

D.The stopper should be very flexible

答案：B阻擋器的理想的繩索需要滿足以下要求中除了阻擋器的尺寸盡可能大 23.The best method to stop a vessel from dragging anchor in a sand bottom is to __B___.A.reduce the length of the cable B.pay out more anchor cable C.back the engines D.swing the rudder several times to work the anchor into the bottom 24.___B__ is prohibited in this area．

A.Anchor B.Anchoring C.Anchored D.Being anchored 25.A vessel fitted with twin screws is easier in _A____ than a vessel with single screw．

A.turning maneuver B.course setting C.position fixing D.regulating speed 26.If your propeller is racing in rough weather，you should __A___.A.decrease your engine speed B.ignore it C.increase your engine speedD.stop your engine until the rough weather passes 27.Which vessel is underway according to the Rules?___B__ A.A vessel made fast to a single point mooring buoy

B.A purse seiner hauling her nets C.A pilot vessel at anchor

D.A vessel which has run aground 28.All of the following are engaged in fishing EXCEPT __B___.A.A vessel trawling

B.A vessel trolling

C.A vessel setting nets D.A vessel tending lines．

29.Any alteration of course and/or speed to avoid collision shall，if the circumstances of the case admit，______ to another vessel observing visually or by radar.A.be large enough to be readily apparent

B.be a succession of small alterations C.be with due regard to the power and speed of the vessel D.leave sufficient room for the other vessel to take action KEY: A任何為避免碰撞的航向和/或航速的改變應(yīng)，如環(huán)境許可，大的足以容易明顯地被他船以視覺(jué)或雷達(dá)觀測(cè)到.（為避免碰撞而作的航向和（或）航速的任何變動(dòng)，如當(dāng)時(shí)環(huán)境許可，應(yīng)大得足以便他船用視覺(jué)或雷達(dá)觀測(cè)時(shí)容易察覺(jué)到）

30.Two short blasts of the whistle have all of the following meanings EXCEPT ______.A.I intend to meet you starboard to starboard． B.I do not intend to hold course and speed．

C.I intend to overtake you on your port side． D.I intend to alter my course to port．

KEY: B 31.If your vessel is the stand-on vessel in a crossing situation __A___.A.you must keep your course and speed B.you may change course and speed as the other vessel must keep clear C.the other vessel must keep her course and speed

D.both vessels must keep their course and speed 32.You should plot your dead reckoning position _A____.A.from every fix or running fix

B.from every estimated position C.every three minutes in pilotage waters

D.only in pilotage waters 33.A buoy having red and green horizontal bands would have a light characteristic of ______.A.interrupted quick flashing B.composite group flashing C.Morse(A)D.quick flashing KEY: B具有紅綠橫紋的浮筒將具有組合閃光的燈光特性。

34.In region A, The green buoys are kept to_____and red to _____when sailing from____to____.A.starboard,port,sea,land

B.starboard,port,land,sea C.port,starboard,land,land

D.port,starboard,sea,sea 答案：A在側(cè)面左手標(biāo)，當(dāng)從海上駛向岸時(shí)綠色浮標(biāo)保持在右舷，紅色在左舷 35.Spring tides are tides that ______.A.have lows lower than normal and highs higher than normal B.have lows higher than normal and highs lower than normal C.are unpredictable D.occur in the spring of the year

KEY: A 36.The movement of water away from the shore or downstream is called a(n)______

A.reversing current B.ebb current C.flood current D.slack current

KEY: B 37.A vessel is listed when it is ______.A.down by the head B.down by the stern C.inclined due to off-center weight D.inclined due to wind

KEY: C 38.Metacentric height is a measure of ______.A.initial stability only B.stability through all angles C.maximum righting arm D.All of the above

Key :A 39.The mean draft of a ship is the draft __A_____ A.Midway between the forwad and aft draft marks B.At the center of flotation C.At the loadline

D.At the center of buoyancy 40.Keeping the draft at or below the load line mark will insure that the vessel has adequate ______.A.ballast

B.reserve buoyancy

C.displacement

D.rolling periods

KEY: B 41.For a floating ship, ture mean draft is always the _____ A.average of the observed drafts

B.draft at the center of flotation C.draft corresponding to the calculated displament D.mean of the calculated draft

Key : B 42.We usually choose cargo—handling equipment according to _______? A.the ship type

B.the port’s organization

C.the cargo’ nature

D.the docker’s ability

Key:C 43.The necessity of the segregation of cargoes is determined by ______.A.experience from practice B.various types of cargoes C.different types of ships D.personal abilities

KEY: B 44.During loading or discharging，the tallymen must make contact with__B___on duty so as to solve problems in time． A．ship owner

B．ship’s officers

C．shippers

D．consignors 45.We’ll adopt the mechanical talling method _____.A.soon or late B.soon or later C.sooner or late

D.sooner or later

Key:D 46.Inflammble caigo _____in the holds adjacent to the angine room.A.shall never be stowed

B.may br stowed

C.can be stowed

D.should be stowed

Key;A 47.TYPHOON FORECAST MOVE 285 DEG 15 KNOT FIRST 12 HOURS THEN 280 DEG 17 KNOTS NEXT 12 HOURS.The movement of the Typhoon is in __C_ quadrant.A.NE

B.SE

C.NW

D.SW 48.Hurricane warnings are issued ______ when winds of force 12 or above are expected． A.in all parts of the world

B.in some parts of the world

C.from all corners of the world

D.from every corner of the world

KEY: B 49.Swell is the rise and fall of the ocean's surface due to ______.A.fetch

B.distant winds

C.local storms

D.the pull of the moon

KEY: B 50.Monsoons(季風(fēng))characterized by ______.A.light，variable winds with little or no humidity B.strong，gusty winds that blow from the same general direction all year C.steady winds that reverse direction semiannuallyD.strong，cyclonic winds that change direction to conform to the passage of an extreme low pressure system

KEY: C 51.In most cases，the direction of the apparent wind lies between the bow and ______.A.the direction of the true wind B.true north C.the beam on the windward side D.the beam on the lee side KEY: A 52.Panting frames are located in the ______.A.after double bottoms B.centerline tanks on tankers C.fore and after peaks D.forward double bottoms

KEY: C 53.The collision bulkhead shall be of _A____.A.water-tight

B.air-tight

C.fire-tight

D.oil-tight 54.Which is the winter load waterline on the load waterline mark?__D___ A.The line over the summer load waterline B.The line above the tropical load waterline C.The line below the tropical load waterline D.The line between the summer and the winter North Atlantic load waterline 55.In relation to cargo gear，what does SWL mean? ______.A.Safe working load B.Ship's working lift C.Starboard wing lift D.Stress，weight，load

KEY: A 56.A chain stripper is used to ___A__.A.prevent chain from clinging to the wildcat

B.clean the marine debris from the chain C.flake chain from a boat’s chain locker

D.clean chain prior to an x-ray inspection

57.The primary reason for placing covers over storage batteries is to _D____.A.prevent the accumulation of explosive gases

B.protect the hull from leaking electrolyte C.prevent movement of the battery in rough waters D.protect against accidental shorting across terminal

58、Racon can help with ___A__? A..measuring the distance B.measuring the relative speed C.identifying a vessel D.identifying a seamark 59______is on the panel of radar.A.KEYLOCK B.REPEATER C.STATIC INVERTER D.ANT-CLUTTER-SEA 60.[708] In order to insure that a RACON signal is displayed on the radar, you should ______.A.increase the brilliance of the PPI scope

B.turn off the interference controls on the radar C.use the maximum available range setting

D.increase the radar signal output 61.Deviation changes with a change in __B___ A.vessel’s geographic position B.vessel’s heading

C.vessel’s magnetic field D.influence of the magnetic materials of the vessel 62.[1118]Deviation changes with a change in ______.A.latitude B.heading C.longitude D.sea conditions

KEY: B 63.[3805]______ the repeater compass with the master compass，please．

A.Similize B.Clock C.Synchronize D.Position

KEY: C 64.With respect to automatic identification systems(AIS)which of the fowllowing information is broadcast every one to ten seconds?

A.Vessel’s draft

B.Air Draft

C.Navigational status

D.Dimensions of vessel

65.Automatic identification systems(AIS)are expected to broadcast all of the following information EXCEPT ______.A.Port of origin B.Name of vessel C.Course and speed over ground D.Draft of vessel

KEY: A 66.[5264]All echo-sounders can measure the ______.A.actual depth of water

B.actual depth of water below keel C.average depth from waterline to hard bottom D.average depth of water to soft bottom

KEY: B 67.[1084] The maritime radio system consisting of a series of coast stations transmitting coastal warning is called ______.A.NAVTEK

B.HYDROLANT/HYDROPAC

C.NAVAREA

D.SAFESEA 68.[4317]What would most likely prevent a SART's signal from being detected? A.Signal absorption by the ionosphere

B.Heavy sea swells C.The rescue personnel were monitoring the 10-cm radar D.The rescue personnel were monitoring the 3-cm radar KEY: C 69.[764] International distress signal in VHF calling for help is _____.A.Help,Help,Help B.Maday,Maday,Maday C.Save,Save,Save D.Rescue,Rescue,Rescue 70.[4314]What is the MOST important thing you should do before transmitting on a marine radio? A.Ask for permission.B.Record the time in your radio log.C.Press the push to talk button three times.D.Monitor the channel to insure that it is clear.KEY: D 71.[4194]There is a drifting mine ______ in position 21 degrees 31 minutes North 124 degrees 20 minutes East． A.report B.reports

C.reported

D.reporting

KEY: C 72.[812]Get the searchlight ______ for transiting the canal at night.A.turned off B.already

C.almost

D.ready

KEY: D為夜間通過(guò)運(yùn)河準(zhǔn)備好探照燈。73.120.Cleaning, painting and repairing work is known as _____.A.Maintenance work B.Lashing work C.Tallying work D.Overtime work 答案：A清潔，油漆和修理工作叫做維修工作 74.[5266]An example of a messenger is a ______.A.fairlead B.heaving line

C.stay D.warp

KEY: B 75.Which type of line would have LEAST resistance to mildew and rot? A.Manila B.Nylon C.Dacron D.Polypropylene 76.[2414]A mooring line that checks forward motion of a vessel at a pier is a ______.A.bow line B.forward bow line C.stern line D.stern breast line

KEY: C 77What are the three bastic types of starters? A.Air,water,electric B.Air,hydraulic.electric C.Metered, hydraulic ,automatic D.Air,emergency, hydraulic 78 [6010]If you saw flames aboard a vessel but could see the vessel was not on fire，you would know that the ______.A.crew was trying to get warm B.vessel required immediate assistance

KEY: B C.vessel was attempting to attract the attention of a pilot boat D.vessel was being illuminated for identification by aircraft 7992.When is the parallel sweep search used? A.When searching a small area B.When searching a large area C.When searching over hilly terrain D.When searching during night

答案：B什么時(shí)候使用平行搜索？當(dāng)在一個(gè)大的海域搜索時(shí) 80.[5827]Portable fire extinguishers must be provided for the cargo tank area of an unmanned tank barge ______.A.only when fully loaded B.if one or more tanks are full C.when transferring cargo D.only when the barge is being towed

KEY: C 81.[1780] You are on watch at sea at night and a fire breaks out in 3 hold.What should be done IMMEDIATELY? A.Shut down the cargo hold ventilation.B.Proceed to the space and determine the extent of the fire.C.Flood the space with CO2 from the fixed fire fighting system.D.Cool the deck to contain the fire 82.What is the meaning of UEL? A.Upper exposure level B.Upper explosion level C.Upper explosive level D.Upper evaporation level

答案：C

83.[1603]A sea anchor is ______.同原題庫(kù)2279 A.a heavy anchor with an extra long line used to anchor in deep water B.a cone shaped bag used to slow down the wind drift effect C.a pad eye to which the sea painter is made fast

D.made of wood if it is of an approved type KEY: B海錨是一個(gè)用于減少風(fēng)致漂移影響的錐狀袋子。

84.[5851]The line-throwing appliance provided on board ship is ______.A.for the saving of life B.for fire-fighting C.for mooring purpose D.for towing purpose

KEY: A 85.[733] In the first 24 hours after abondoning a vessel, water should be given only to personnel who are ______.A.thirsty

B.sick or injured

C.wet

D.awake 86.What does OBO mean?

A.Oil Bulk Oil B.Ore Bulk Oil C.Only Bulk Ore D.Only Basic Oil 答案：B.OBO的意思是什么？礦石/散貨油 87.When chipping rust on a vessel,the MOST important piece of safety gear is____.A.a hard hat

B、gloves

C、goggles

D、a long sleeve shirt 88、You should FIRST treat a simple fracture by A、attempting to set the fracture

B、preventing her movement of the bone C、applying a tourniquet

D、alternately applying hot and cold compresses

（一）EGC Message----MET Navarea Warning or MET Forecast---Message Sequence No：00l03LES： KDDIPriority：UrgentSize：969charactersReceive Date 1 Time：07-09-18 06：56(UTC)PAN PANTHIS TROFICAL CYCLONE WARING IS ISSUED FOR THE NORTH OF EQUATOR OF METAREA XI(FOR)WARNING 180600WARFING VALID 190600WARNING IS UPDATED EVERY 6 HOURSTYPHOON WARNINGTYPHOON 0712 WIPHA(0712）930 HPAAT 25.7N 122.6E NORTHWEST OF ISHIGAKIJIMA MOVING NORTHWEST 16 KNOTSPOSITION GOODMAX WINDS 100 KNOTS NEAR CENTERRADIUS OF OVER 50 KNOT WINDS 90 MILESRADIUS OF OVER 30 KNOT WINDS 260 MILES NORTHEAST SEMICIRCLE AND 180 MILES ELSEWHEREFORCAST POSITION FOR 181800UTC AT 27,2N 120.8E WITH 60 MILES READIUS OF 70 PERCENT PROBABILITY CIRCLE950 HPA,MAX WINDS 85 KNOTS NEAR CENTERFORCAST POSITION FOT 190600UTC AT 29.7N 119.6E WITH 90 MILES READIUS OF 70 PERCENT PROBABILITY CIRCLE985 HPA,MAX WINDS 50 KNOTSEXTENDED OUTLOOKFORCAST POSITION FOR 200600UTC AT 37.ON 121.9E EITH 170 MILES READIUS OF 70 PENCENT PROBABILITY CIRCLE1000 HPA,MAX WINDS 35 KNOTBECOMING XTEROPICAL LOWJAPAN METEROLOGICAL AGENCY 89、Where is the message sent for? A、Japan B、Singapore C、Taiwan D、New Zealand 90、What os the priority of the message? A、Routine B、Securite C、Urgency D、Distress 91、The warning was issued at 180600 and will be first updated at A、190600 B、181256

C、180656

D、181200

92、Which of the following statements is true according to the warning? A、950 HPA located at 25.7N 122.6E,its maximum winds near centre reach 85 knots,and radius of over 30 knot winds 260 miles northeast semicircle B、930 HPA located at 25.7N 122.6E,its maximum winds near centre reach 100 knots, and radius of over 30 knot winds 260 miles northeast semicircle C、950 HPA located at 29.7N 119.6E,its maximum winds near centre reach 85 knots,and radius of over 30 knot winds 260 miles northeast semicircle D、930 HPA located at 29.7N 119.6E,its maximum winds near centre reach 100 knots, and radius of over 30 knot winds 260 miles northeast semicircle 二短距離通信

Communications over relatively short distances can be made by visual or sound signals.Visual signals can be sent by using flags or an Aldis lamp.An Aldis lamp is an electric lamp used for flashing messages in Morse code.The traditional method of signaling from one ship to another is by using flags.There are different colored flags for each letter of the alphabet.There are also pennant-shaped flags for numbers，and a long pennant，known as an answering or code pennant.Three other flags，which are burgee-shaped，are known as substitutes.These show that the flat or pennant is being repeated.Besides standing for a letter of the alphabet，each flag，when hoisted along，has another meaning.For example，the “W” flag also means: “I require medical assistance”.Flags can also be hoisted in combinations of two，three or four.Siren，whistle，bell or other sound signals can be used in fog and similar circumstances when visual signals can not be seen.[93]Communications over relatively short distances may be made by ________.通信相關(guān)的距離相當(dāng)短，可以不是視覺(jué)就是聲號(hào)。

A.visual signals B.sound signals C.Morse Code D.Either visual or sound signals

#D [94]An Aldis lamp is used for ________.一個(gè)手提閃光信號(hào)的被用在莫爾斯密碼發(fā)送上。

A.transmitting Morse code B.flashing flags C.sending flag signals D.sending sound signals

#A [95]Burgee-shaped flags are used as substitutes to show ________.燕尾旗是用來(lái)代替顯示 重復(fù)的

A.“repeating” B.“answering” C.“code” pennant D.“I requiring medical assistance”

#A [96]________ are used in fog and similar circumstances when visual signals can not be seen.這個(gè)船的汽笛，口哨或者鐘是用在霧和類似環(huán)境當(dāng)視覺(jué)不能看到時(shí)候。

A.Visual signals B.Substitutes C.Pennant-shaped flags D.The ship's siren，whistle or bell

#D

第四篇：2008年第6期海船船員適任統(tǒng)考試題

中華人民共和國(guó)海事局

2008年第6期海船船員適任統(tǒng)考試題（總第46期）

科目：航海學(xué)試卷代號(hào)：913．

適用對(duì)象：無(wú)限航區(qū)3000總噸及以上船舶二／三副

（本試卷卷面總分100分，及格分為70分，考試時(shí)間100分鐘）

答題說(shuō)明：本試卷試題均為單項(xiàng)選擇題、請(qǐng)選擇一個(gè)最合適的答案，并將該答案按答題卡要求在其相應(yīng)位置上用2B鉛筆涂黑。每題1分，共100分。

1．航海學(xué)中的地球形狀用 來(lái)描述。

A.地球自然表面圍成的幾何體 B.大地球體 C.地球橢圓體 D.地球圓球體

2．某船由30oS，60oW航行至40oS，120oW，則該船經(jīng)差和緯差的方向分別為：

A．E經(jīng)差、N緯差 B．W經(jīng)差、S緯差 C．E經(jīng)差、S緯差 D．W經(jīng)差、N緯差 3．下列哪項(xiàng)是建立大地坐標(biāo)系時(shí)應(yīng)明確的問(wèn)題？Ⅰ、確定橢圓體的參數(shù)；Ⅱ、確定橢圓體中心的位置；Ⅲ、確定坐標(biāo)軸的的方向

A．Ⅰ、Ⅱ B．Ⅰ、Ⅲ C．Ⅱ、Ⅲ D．Ⅰ、Ⅱ、Ⅲ 4．半圓周法方向換算為圓周法方向的法則是。

Ａ．在SE半圓，圓周度數(shù)等于180°加上半圓度數(shù) Ｂ．在NE半圓，圓周度數(shù)等于360°減去半圓度數(shù) Ｃ．在SW半圓，圓周度數(shù)等于180°減去半圓度數(shù) Ｄ．在NW半圓，圓周度數(shù)等于360°減去半圓度數(shù)

5．某船真航向120°，該船左舷160°某物標(biāo)的真方位為。

A．40°

B．040°

C．320°

D．280° 6．某輪陀羅航向300°，陀羅差2°E，則左正橫處物標(biāo)的真方位是：

Ａ．210°

Ｂ．208°

Ｃ．212°

Ｄ．270° 7．當(dāng)船舶轉(zhuǎn)向時(shí)，下列哪些隨之發(fā)生改變？I．真方位 II.羅方位 III.磁方位 IV.舷角

Ａ．I、II Ｂ．III、IV

Ｃ．I、III

Ｄ．II、IV 8．某船沿極圈（66°33＇N）航行，已知計(jì)程儀改正率為0.0%，無(wú)航行和推算誤差，則實(shí)際船位比在海圖上按計(jì)程儀航程推算的推算船位（不考慮風(fēng)流影響）。

Ａ．超前

Ｂ．落后

Ｃ．一致

Ｄ．不一定 9．測(cè)者眼高為25m，物標(biāo)高程為16m，則測(cè)者能見(jiàn)地平距離為_(kāi)________海里.A．8.36 B．12.54 C．10.45 D．18.81 10．通常英版海圖和《燈標(biāo)霧號(hào)表》中燈塔燈光的最大可見(jiàn)距離可能與下列哪些因素有關(guān)？ I：測(cè)者眼高 II：燈高 III：射程 IV：地面曲率 V：地面蒙氣差 VI：能見(jiàn)度

Ａ．I～I(xiàn)II

Ｂ．IV～VI

Ｃ．III～V

Ｄ．I～VI 11．相對(duì)計(jì)程儀顯示的航程是_______ A船舶在各種風(fēng)流情況下的對(duì)水航程 B．船舶在無(wú)風(fēng)流情況下的對(duì)水航程

C船舶在僅僅受到風(fēng)的影響下的對(duì)水航程 D．船舶在僅僅受到流的影響下的對(duì)水航程 12．某輪航速12kn，航行2h后相對(duì)計(jì)程儀讀數(shù)差為27＇.0，計(jì)程儀改正率ΔL＝0%，已知該輪實(shí)際航程為30 n mile，則該輪航行在 中。

Ａ．順風(fēng)順流

Ｂ．頂風(fēng)順流 Ｃ．頂流順風(fēng)

Ｄ．頂風(fēng)頂流

13．某輪航速12kn，頂風(fēng)順流航行，流速2kn，風(fēng)使船減速1kn，0600計(jì)程儀讀數(shù)為100＇.0，計(jì)程儀改正率ΔL＝＋10%，則1h后相對(duì)計(jì)程儀讀數(shù)為 ：

Ａ．110＇.0 110＇.0 Ｂ．110＇.9 Ｃ．111＇.8 Ｄ．112＇.7 14．某張墨卡托海圖的基準(zhǔn)緯度。

Ａ．等于該圖的平均緯度

Ｂ．等于該圖的最高緯度 Ｃ．等于該圖的最低緯度

Ｄ．可能不在該圖內(nèi) 15．墨卡托海圖能保持等角投影是由于________ A．圖上任意點(diǎn)各個(gè)方向局部比例尺相同 B．圖上各點(diǎn)局部比例尺相同 C．圖上各點(diǎn)局部比例尺均等于基準(zhǔn)比例尺 D．圖上各緯線局部比例尺相同 16．航向?yàn)?90o時(shí)，恒向線與_________重合

A．格林子午線圈 B．子午圈 C．赤道 D．等緯圈

17．在同一張墨卡托海圖上，設(shè)1 855m的地面長(zhǎng)度的赤道圖長(zhǎng)為lcm，則在30o緯度線上，1 855m地面長(zhǎng)度的圖長(zhǎng)約為_(kāi)________ A．lcm B．0.866cm C．1.155cm D．0.5cm 18．高斯投影圖上有兩種圖網(wǎng)，經(jīng)緯線圖網(wǎng)和公里線圖網(wǎng)，下列說(shuō)法不正確的是___________ A．公里線圖網(wǎng)垂直正交 B．經(jīng)緯線圖網(wǎng)垂直正交 C．軸子午線和赤道垂直正交 D．經(jīng)緯線均被投影成曲線

19．海圖圖廓注記通常包括下列哪些內(nèi)容？I 圖名 II 圖號(hào) III 圖幅 IV 小改正

V 出版和發(fā)行情況 VI 重要注意和警告 VII 坐標(biāo)系說(shuō)明

Ａ．I～I(xiàn)V Ｂ．II～V Ｃ．III～VI Ｄ．IV～VII 20．通常情況下，物標(biāo)的實(shí)際高度比英版海圖所標(biāo)注的高程

A．大 B．小 C．不一定 D．無(wú)法確定 21．英版海圖圖式中，縮寫(xiě)“SD”是指。

Ａ．礁石、淺灘等的存在有疑問(wèn)

Ｂ．深度可能小于已注明的水深注記 Ｃ．對(duì)危險(xiǎn)物的位置有懷疑

Ｄ．危險(xiǎn)物的位置未經(jīng)精確測(cè)量 22．海圖圖式“M”表示該區(qū)地質(zhì)為_(kāi)______ A．沙 B．泥 C．淤泥 D．巖石 23．適淹礁是指。

Ａ．平均大潮高潮時(shí)露出的孤立巖石

Ｂ．平均大潮高潮面下，深度基準(zhǔn)面以上的孤立巖石 Ｃ．深度基準(zhǔn)面適淹的礁石

Ｄ．深度基準(zhǔn)面以下的孤立巖石

24．在一個(gè)周期內(nèi)相繼出現(xiàn)幾個(gè)不同閃光次數(shù)的聯(lián)閃光為。

Ａ．明暗光

Ｂ．聯(lián)閃光

Ｃ．混合聯(lián)閃光 Ｄ．長(zhǎng)閃光 25．燈質(zhì)“FlRW”表示。

Ａ．互光燈，一個(gè)周期內(nèi)紅、白交替發(fā)光，常明不滅 Ｂ．閃光燈有紅光弧和白光弧

Ｃ．一個(gè)周期內(nèi)交替閃一次紅光和一次白光 Ｄ．閃白光和閃紅光

26．英版海圖、圖書(shū)代銷店負(fù)責(zé)其所銷售。

Ａ．海圖的永久性通告的改正

Ｂ．海圖的所有通告的改正 Ｃ．所有圖書(shū)資料的改正

Ｄ．海圖和燈標(biāo)表的改正

27．要了解某張海圖的現(xiàn)行版日期時(shí)可查閱。I、航海圖書(shū)總目錄；II、英版航海通告累積表；III、英版航海通告摘要；IV、季末版航海通告

Ａ．I、II Ｂ．II、III Ｃ．III、IV Ｄ．I～I(xiàn)V

28．在電子海圖顯示與信息系統(tǒng)中，關(guān)于海圖顯示，以下說(shuō)法錯(cuò)誤的是？

A.可以在給定的投影方式下合成和顯示海圖 B.不能隱去本船在特定航行條件下不需要的信息 C.可以改變電子海圖的比例尺 D.可以分層次顯示海圖信息

29．航跡推算中，在推算船位附近應(yīng)標(biāo)注：I.航跡向；II.計(jì)程儀讀數(shù)；III.推算船位；IV.時(shí)間。

A.I、IV B.I、III C． II、IV D.II、III 30．以下哪種流的流向和流速最難以掌握？

A．風(fēng)生流 B．海流 C．洋流 D．潮流

31．某船計(jì)劃航跡向090°，船速10kn，流向正北，流速4節(jié)。則該輪應(yīng)駛的真航向?yàn)椋?/p>

A．112° B．068° C．114° D．066°

32．某輪計(jì)劃航向045o，駛真航向045o，連續(xù)定位法實(shí)測(cè)航跡向050o，則該輪實(shí)測(cè)風(fēng)流壓差和修正風(fēng)流壓差后應(yīng)駛的真航向分別為：

A．+5o，040o B．+5o，050o C．-5o，040o D．-5o，050o

33．某輪沿某疊標(biāo)線航行，圖示疊標(biāo)方位為030o，羅經(jīng)航向030o，磁差2oE，自差1oE，則實(shí)測(cè)風(fēng)流壓差為：

A．-3o B．+3o C．0o D．無(wú)法確定

34．某輪陀羅航向030o，航行中用雷達(dá)測(cè)得物標(biāo)距離最近時(shí)的陀羅方位為303o，陀羅差2oE，則實(shí)測(cè)風(fēng)流壓差為：

A．+3o B．-3o C．+5o D．-5o 35．關(guān)于低緯海區(qū)的航跡計(jì)算，以下哪種說(shuō)法正確？

A．墨卡托航法不適用

B．利用平均緯度求經(jīng)差的算法精度高于利用中分緯度求經(jīng)差的算法的精度 C．利用中分緯度求經(jīng)差的算法精度高于利用平均緯度求經(jīng)差的算法的精度 D．約定緯度算法適用于跨赤道航行

36．某輪從（40oS、140oW）航行到（42oS、160oW），則應(yīng)駛的恒向線航向?yàn)椋?/p>

A．082o.5 B．097o.5 C．262o.5 D．277o.5 37．在海圖對(duì)景圖下標(biāo)有“方位000o，14n mile”，表明對(duì)景圖上的山形是：

A．從該物標(biāo)的南方14海里向南所看到的形狀 B．從該物標(biāo)的北方14海里向南所看到的形狀 C．從該物標(biāo)的南方14海里向北所看到的形狀 D．從該物標(biāo)的北方14海里向北所看到的形狀

38．用六分儀觀測(cè)已知H（m）的物標(biāo)的垂直角α(‘)，求船與物標(biāo)的水平距離D(n mile)公式是：

A．D?H?tan? B．D?H?cos? C．D?1.856H/? D．D?1.865??/H 39．兩陸標(biāo)方位定位時(shí)，應(yīng)先測(cè)方位變化慢的物標(biāo)，后測(cè)方位變化快的物標(biāo)，它是建立在：

A．觀測(cè)的難、易程度

B．定位時(shí)間是以第一次觀測(cè)時(shí)刻為準(zhǔn) C．定位時(shí)間是以第二次觀測(cè)時(shí)刻為準(zhǔn) D．與觀測(cè)方位時(shí)刻無(wú)關(guān)

40．兩距離定位時(shí)，兩圓弧位置線通常交于兩點(diǎn)，其中只有一個(gè)是正確的觀測(cè)船位，下列哪種判定觀測(cè)船位的方法是錯(cuò)誤的？

A．靠近推算船位的一個(gè)交點(diǎn)是正確的觀測(cè)船位

B．根據(jù)所測(cè)物標(biāo)與船位間的相對(duì)位置關(guān)系來(lái)確定那個(gè)是觀測(cè)船位 C．連續(xù)多次定位，根據(jù)船舶的航跡分布情況來(lái)確定觀測(cè)船位 D．根據(jù)船舶的航向來(lái)確定觀測(cè)船位 41．圓弧形位置線的轉(zhuǎn)移采用：

A．繪畫(huà)平行線的方式 B．逐點(diǎn)轉(zhuǎn)移的方式 C．轉(zhuǎn)移有限幾個(gè)點(diǎn)后再相連的方式 D．轉(zhuǎn)移圓心的方式 42．以兩天極為起止點(diǎn)且通過(guò)格林天底的半個(gè)大圓稱：

A．測(cè)者子圈 B．測(cè)者午圈 C．格林子圈 D．格林午圈 43．天體半圓方位是從 起算。Ⅰ、北點(diǎn)；Ⅱ、南點(diǎn)；Ⅲ、東點(diǎn)

A．Ⅱ或Ⅲ B．Ⅰ或Ⅱ C．Ⅰ或Ⅲ D．Ⅰ或Ⅱ或Ⅲ 44．天體上中天時(shí)，天體地方時(shí)角等于：

A．180 o B．0 o C．90 o D．270 o 45．一年中太陽(yáng)赤經(jīng)日變化量最大約為：

A．54’3 B．53’8 C．62’3 D．66’6 46．“春季星空”是以赤經(jīng)等于 為中心線展開(kāi)的星空。

A．0 o B．90 o C．180 o D．270 o

47．測(cè)者1的以度?1?120?E的地方平時(shí)LMT1=08h（15/9），此刻測(cè)者2的經(jīng)度?2?120?W的地方平時(shí)LMT2= A．00h(16/9)B．16h（15/9）C．08h（14/9）D．16h(14/9)48．將世界時(shí)時(shí)刻分成UT0、UT1和UT2是考慮了 的因素。

A．地球自轉(zhuǎn) B．地球自轉(zhuǎn)的速度不均勻 C．地球公轉(zhuǎn) D．地球公轉(zhuǎn)的速度不均勻 49．船舶由東十二時(shí)區(qū)進(jìn)入西十二時(shí)區(qū)船鐘應(yīng)：

A．撥快1小時(shí) B．撥慢1小時(shí) C．不撥 D．指示世界時(shí) 50．實(shí)際上，大潮發(fā)生在：

A．朔望日 B．朔望日之后 C．月中天 D．朔望日之前

51．存在潮汐周日不等的海區(qū)，一個(gè)太陰日里相鄰兩次高潮中潮高較低的高潮稱為：

A．高高潮 B．高低潮 C．低高潮 D．低低潮

52．以下哪些是中版《潮汐表》的內(nèi)容？I、主港潮汐預(yù)報(bào)表；II、潮流預(yù)報(bào)表；III、格林尼治月中天時(shí)刻表；IV、差比數(shù)和潮信表；V、潮時(shí)差與潮高差表

A．I～I(xiàn)V B．I、II、IV、V C．II～V D．I、II、III、V 53．主、附港的潮時(shí)差為“+”說(shuō)明：

A．附港位于主港的東面 B．附港位于主港的西面

C．附港高、低潮潮時(shí)早于主港 D．附港高、低潮潮時(shí)晚于主港

54．我國(guó)沿海某地的大潮升為3.5米，小潮升為2.8米，平均海面2.3m。則該地農(nóng)歷初八的低潮潮高約為：

A．3.5米 B．3.2米 C．3.0米 D．1.6米 55．英版《潮汐表》第一卷不包括：

A．潮流預(yù)報(bào)表 B．主港潮汐預(yù)報(bào)表 C．調(diào)和常數(shù) D．潮時(shí)差與潮高差表 56．已知主港低潮時(shí)為0355，且主附港時(shí)差資料為 Time Difference High Water Low Water 0200 0800 0300 0800

主港 and and and and 1400 2000 1500 2000 附港潮時(shí)差-0010-0015-0035-0020 則對(duì)應(yīng)該主港低潮時(shí)的附港潮時(shí)差為：

A．-0025 B．0025 C．-0012 D．0012 57．回轉(zhuǎn)流圖中，矢端注有數(shù)字“0”箭矢表示：

A．主港低潮時(shí)的流向 B．主港高潮時(shí)的流向 C．主港轉(zhuǎn)流流速為0 D．當(dāng)?shù)剞D(zhuǎn)流流速為0 58．半日潮港，漲潮箭矢上標(biāo)注4kn，則該處小潮日漲潮流第六小時(shí)內(nèi)的平均流速為：

A．2/3kn B．4/3kn C．8/3kn D．2kn 59．我國(guó)沿海右側(cè)標(biāo)的頂標(biāo)特征為：

A．紅色罐形 B．紅色錐形 C．綠色罐形 D．綠色錐形 60．某船接近某入口航道，發(fā)現(xiàn)海圖上有一燈標(biāo)標(biāo)志

，該船應(yīng)將該燈標(biāo)置于____通過(guò)。

A．左舷 B．右舷 C．任意一舷 D．正前方

61．IALA浮標(biāo)制度B區(qū)域中，紅色中間有一道綠色橫紋的浮標(biāo)可配備：

A．單個(gè)紅色罐形頂 B．單個(gè)紅色錐形頂標(biāo) C．單個(gè)綠色罐形頂標(biāo) D．單個(gè)綠色錐形頂標(biāo)

62．M、N兩船同在120°E經(jīng)線上，M船在50°N，N船在20°N，各自向正東方向航行，且抵達(dá)同一條經(jīng)線（170°E），則兩采用大圓航線比恒向線航線可縮短航程的百分比情況為： A．M船比N船所縮短航程的百分比大 B．N船比M船所縮短航程的百分比大 C．M船與N船所縮短航程的百分比相同 D．M船與N船所縮短的航程數(shù)相同

63．設(shè)A在北半球，B在南半球，從A到B的恒向線航向?yàn)?30 o，則A到B的大圓始航向?yàn)椋孩瘛⒋笥?30 o；Ⅱ、小于230 o；Ⅲ、等于230 o

A．Ⅰ B．Ⅱ C．Ⅲ D．Ⅰ或Ⅱ

64．某船由32 o02’S，115 o10’E航行到6 o39’N，79 o30’E，則相應(yīng)的大圓航程為：

A．3089 n mile B．3210 n mile C．3189 n mile D．3310 n mile 65．?dāng)M定大洋航線時(shí)通常應(yīng)考慮的因素有：I、氣象；II、海況；III、礙航物；IV、定位與避讓；V、本船條件；VI、推薦航線

A．I～I(xiàn)II B．IV～VI C．I～V D．I～VI 66．某船航速20kn，航行1000n mile，需要燃油120t。現(xiàn)僅存燃油110t，至中途港尚有800n mile的航程，中途港至目的港還有1200mile。船舶計(jì)劃加速1kn到中途港加油，而后恢復(fù)原來(lái)航速，問(wèn)船舶在中途港加多少燃油才能使船舶到達(dá)目的港？ A．120.4t B．148.2t C．150.2t D．181.9t 67．冰區(qū)航行，應(yīng)盡可能避免在冰區(qū)內(nèi)拋錨，如必須拋錨，則鏈長(zhǎng)應(yīng)該：

A．以2～3節(jié)為宜 B．以3～5節(jié)為宜 C．不超過(guò)水深的2倍 D．不超過(guò)水深的4倍 68．在能見(jiàn)度良好時(shí)，沿岸航線距陡峭海岸的最近距離為：

A．1 n mile B．2n mile C．5 n mile D．10 n mile 69．?dāng)M定沿岸航行時(shí)，在能見(jiàn)度良好的情況下，航線與附近有顯著物標(biāo)可供定位和避險(xiǎn)的精測(cè)危險(xiǎn)物之間的距離，至少應(yīng)保持在：

A．5鏈以上 B．1.5海里以上 C．1海里以上 D．2海里以上 70．單一船位線與航線接近垂直時(shí)，一般能判斷：

A．推算船位偏離航線的情況 B．推算船位超前或落后實(shí)際船位的情況 C．船位的緯度 D．船位的經(jīng)度

71．浮標(biāo)導(dǎo)航，應(yīng)首先正確辯論各個(gè)浮標(biāo)。通常辯論浮標(biāo)是觀察該標(biāo)的：I、顏色；II、頂標(biāo)；III、燈質(zhì)；IV、形狀；、V、編號(hào)；VI、射程

A．I～I(xiàn)II B．I～I(xiàn)V C．I～V D．I～VI 72．某輪在狹水道航行，計(jì)劃航向160o，選擇航線正前方某單一物標(biāo)進(jìn)行導(dǎo)標(biāo)方位導(dǎo)航，如航行中實(shí)測(cè)該導(dǎo)標(biāo)羅方位158o，陀羅差2oW，則該輪應(yīng)：

A．向左調(diào)整航向 B．向右調(diào)整航向 C．保持原航向 D．無(wú)法確定 73．某輪計(jì)劃利用轉(zhuǎn)向點(diǎn)附近某物標(biāo)正橫確定轉(zhuǎn)向時(shí)機(jī)左轉(zhuǎn)20o，如船舶接近轉(zhuǎn)向點(diǎn)前發(fā)現(xiàn)本船偏左，則該辦應(yīng)：

A．適當(dāng)提前轉(zhuǎn)向 B．適當(dāng)推遲轉(zhuǎn)向

C．物標(biāo)正橫時(shí)轉(zhuǎn)向 D．定位確認(rèn)抵達(dá)預(yù)定轉(zhuǎn)向點(diǎn)后轉(zhuǎn)向

74．采用方位避險(xiǎn)，如所選避險(xiǎn)物標(biāo)和危險(xiǎn)物同在航線右側(cè)，且避險(xiǎn)物標(biāo)位于危險(xiǎn)物后方，避險(xiǎn)方位為060o，陀羅差2oW，則在下列哪種情況下表明船舶不存在航行危險(xiǎn)？ Ⅰ、實(shí)測(cè)陀羅方位060 o；Ⅱ、實(shí)測(cè)陀羅方位058 o；Ⅲ、實(shí)測(cè)陀羅方位062 o A．Ⅰ、Ⅱ B．Ⅱ、Ⅲ C．Ⅰ、Ⅲ D．Ⅰ～Ⅲ 75．霧中航行，采用逐點(diǎn)航法的優(yōu)點(diǎn)是：

A．容易發(fā)現(xiàn)物標(biāo) B．能確保航行 C．航行能縮小推算誤差 D．容易確定航向 76．我國(guó)船舶交通管理系統(tǒng)安全監(jiān)督管理的主管機(jī)關(guān)是：

A．國(guó)家海事局 B．地方港務(wù)局 C．國(guó)家海洋局 D．交通部 77．羅蘭C信號(hào)發(fā)射格式中，基線延時(shí)是用來(lái)__________。

A．識(shí)別各副臺(tái)信號(hào) B．解決雙曲線位置線雙值性 C．保密 D．消除天波干擾 78．GPS衛(wèi)星導(dǎo)航系統(tǒng)中所使用的P碼是__________的偽隨機(jī)碼。

A．快速、短周期 B．低速、短周期 C．低速、長(zhǎng)周期 D．快速、長(zhǎng)周期 79．單頻GPS衛(wèi)星導(dǎo)航儀定位精度為_(kāi)_________。

A．15～30米 B．0.05～0.1海里 C．1米 D.100米 80．GPS衛(wèi)星導(dǎo)航儀定位時(shí)顯示D2D字符表示：

A．二維定位 B．三維定位 C．差分GPS二維定位 D.差分GPS三維定位 81．船載AIS缺省的工作模式為：Ⅰ、自主連續(xù)模式；Ⅱ、指定模式；Ⅲ、查詢模式

A．Ⅰ B．Ⅱ C．Ⅲ D．Ⅱ、Ⅲ

82．造成雷達(dá)熒光屏中心附近雷達(dá)回波方位擴(kuò)展的主要因素是________。

A．水平波束寬度 B．垂直波束寬度 C．脈沖寬度 D．CRT光點(diǎn)直徑

83．遠(yuǎn)處小島上有兩個(gè)橫向分布的陡峰，間距為1海里，海面以上高度均為36米，本船雷達(dá)天線海面以上高度為16米，本船離該島至少________海里以外時(shí)，小島回波將分離成兩個(gè)回波。

A．6 B．9 C．16 D．20 84．在雷達(dá)熒光屏中心附近出現(xiàn)的圓盤(pán)狀亮斑回波，越往外越弱，它是________。A．強(qiáng)海浪干擾 B．雨雪干擾 C．某種假回波 D．二次反射回波 85．雷達(dá)熒光屏上可能出現(xiàn)多次反射回波的條件是________。Ⅰ、物標(biāo)距離較近；Ⅱ、物標(biāo)反射強(qiáng)度較強(qiáng)；Ⅲ、不需要特殊要求

A．Ⅱ、Ⅲ B．Ⅰ、Ⅲ C．Ⅰ～Ⅲ D．Ⅰ、Ⅱ

86．改變雷達(dá)量程時(shí)，熒光屏上二次掃描回波將________。Ⅰ、方位改變；Ⅱ、距離改變；Ⅲ、改變?cè)谄辽系奈恢茫珳y(cè)得的距離不變

A．Ⅰ B．Ⅱ C．Ⅲ D．Ⅰ、Ⅱ

87．在雷達(dá)小量程檔觀測(cè)，發(fā)現(xiàn)兩側(cè)筆直岸線在屏上呈中間向外彎曲的曲線，說(shuō)明：

A．是岸線的二次掃描假回波 B．雷達(dá)測(cè)距誤差為“＋” C．雷達(dá)測(cè)距誤差“－” D．多次反射回波 88．對(duì)雷達(dá)定位使用效果最好的是________。

A．雷達(dá)角反射器 B．Ramark C．Racon D．雷達(dá)回波增幅器 90．有關(guān)雷達(dá)應(yīng)答器，下列說(shuō)法正確的是：

A．按應(yīng)答器自己的規(guī)律定時(shí)發(fā)射脈沖信號(hào) B．在雷達(dá)脈沖激發(fā)后再發(fā)射

C．至少有兩部雷達(dá)同時(shí)激發(fā)后才發(fā)射 D．由雷達(dá)應(yīng)答器控制人員操縱工作 91．多普勒計(jì)程儀是應(yīng)用多普勒效應(yīng)進(jìn)行測(cè)速和累計(jì)航程的，當(dāng)超聲波聲源與接收者相互遠(yuǎn)離時(shí)，接收者接收到的聲波頻率與聲源頻率相比。A.變大 B．變小 C．相等 D．無(wú)影響

92．對(duì)于目前船用的多普勒計(jì)程儀，下面說(shuō)法中最恰當(dāng)?shù)氖恰．測(cè)量船舶對(duì)地速度 B．測(cè)量船舶對(duì)水速度

C．淺水測(cè)量船舶對(duì)地速度，深水測(cè)量船舶對(duì)水速度 D．深水測(cè)量船舶對(duì)地速度，淺水測(cè)量船舶對(duì)水速度 93．回聲測(cè)深儀的工作頻率是指。

 A．脈沖重復(fù)頻率 B．發(fā)射脈沖的間隔時(shí)間

C．每秒鐘發(fā)射脈沖次數(shù) D．發(fā)射超聲波的頻率 94．磁羅經(jīng)羅盤(pán)磁矩減小將引起。

A．停滯角加大，擺動(dòng)周期減小 B．停滯角減小，擺動(dòng)周期加長(zhǎng) C．停滯角加大，擺動(dòng)周期加長(zhǎng) D．停滯角減小，擺動(dòng)周期減小 95．利用觀測(cè)太陽(yáng)方位求磁羅經(jīng)自差時(shí)，太陽(yáng)的高度最好。

A．低于30° B．高于45° C．在60°附近D．等于90° 96．受地球自轉(zhuǎn)的影響并在控制力矩的作用下，羅經(jīng)主軸將作 的擺動(dòng)。

A．等幅橢圓 B．等幅圓 C．等幅雙曲線 D．等幅螺旋線 97．陀螺羅經(jīng)的基線誤差是指羅經(jīng)基線與船首尾線________，而由此產(chǎn)生 ________的誤差。A．平行，偏離真北 B．不平行，偏離真北 C．平行，指向 D．不平行，讀數(shù) 98．起動(dòng)安許茨4型羅經(jīng)時(shí)，先合上電源開(kāi)關(guān)，后接通隨動(dòng)開(kāi)關(guān)，為使陀螺球達(dá)到額定轉(zhuǎn)速，兩者的時(shí)間間隔至少應(yīng)該有________。

A．90分鐘 B．60分鐘 C．40分鐘 D．20分鐘 99．連續(xù)觀察三次天體的羅方位取平均值后再求羅經(jīng)差的目的是：Ⅰ、減少隨機(jī)誤差的影響；Ⅱ、抵消系統(tǒng)誤差；Ⅲ、避免粗差

A．Ⅰ、Ⅱ B．Ⅱ、Ⅲ C．Ⅰ～Ⅲ D．Ⅰ、Ⅲ 100．測(cè)者緯度? = 30°N,3月21日，太陽(yáng)真出時(shí)的半圓方位等于：

A.30°NE B.60°NE C.90°NE D.90°SE

第五篇：第46期 2008年第46期海船船員適任統(tǒng)考試題 注釋

中華人民共和國(guó)海事局

2008年 tide B.vertical distance from the chart sounding datum to the ocean bottom C.average height of water over a specified period of time D.average height of all low waters at a place 海圖水深指從海圖深度基準(zhǔn)線到海底的垂直距離。不需要加上潮水的高度。

8.Defense plans may cause the operation of electronic aids to navigation to be suspended（暫停）with ______.A.no notice

B.one day's notice

C.a week's notice

D.thirty(30)days notice 防衛(wèi)計(jì)劃引起的電子助航儀器操作的暫停不會(huì)事先發(fā)出通告的。這關(guān)于一個(gè)國(guó)家的安全問(wèn)題。

9.Periodic publications notifying change in, or additions to, previously（以前的）published navigational data are______.A.Supplements

B.Annual Summary C.Navigational Warning

D.Notices to Mariners 周期性的關(guān)于以前出版的航海數(shù)據(jù)的改正或增加的通告是《航海通告》。雖然補(bǔ)編和航行警告也有改正信息，但它們都是有必要時(shí)才會(huì)出版。而摘要里面也只是對(duì)航海通告中到1月1日仍然有效的進(jìn)行匯總。10.______is a full nautical record of a ship's voyage, written up at the end of each watch by the officer of the watch.1890 A.Sea Protest

B.Deck Log

C.Accident Report

D.Seaman's Book 11.Do you need to measure oxygen levels before entering an enclosed space? A.Yes, always B.No C.No if you measure for toxic gases D.yes, but not if you ventilate properly first for 24 hours 這是SOLAS對(duì)進(jìn)入封閉場(chǎng)所的規(guī)定。如果氧氣含量不足會(huì)導(dǎo)致窒息。

12.The extent（范圍）of the damage could not be ________though I inspected it with the Chief Stevedore（工頭，也可以用FOREMAN）in charge.A.sure

B.contained

C.ascertained（確定）

D.applied 破損的范圍只能被確定，而不能被包含或應(yīng)用，因此B和D是不能用的，而A 中的SURE 是個(gè)形容詞，在這里也不能用。

13.If you do not wear goggles and helmet, your chances of being _______will be greater.A.beaten

B.damaged（對(duì)物）

C.hurt

D.stricken 可以通過(guò)GOGGLES這個(gè)詞來(lái)去除不合理選項(xiàng)，首先B是對(duì)物來(lái)講的，不能用在人身上，護(hù)目鏡的目的是為了防止灰或者其他小東西蹦到眼睛里，因此用BEAT 和STRIKE就會(huì)覺(jué)得動(dòng)作比較大，顯得不合理。而HURT不管你是大的傷害還是小的傷害都可以用。

14.Before sailing, mariners on duty shall check the headings of magnetic compass by comparison with__________.A.ship’s clock

B.engine movement recorder

C.repeaters（復(fù)示器）D.navigation

46903 lights 能夠用來(lái)較對(duì)磁羅經(jīng)航向的除了用測(cè)羅經(jīng)方位差的方法，用電羅經(jīng)或者其復(fù)示器來(lái)比對(duì)。A中的船鐘，B中的車鐘記錄薄，D中的航行燈都與題目不符。15.Painting on _______ is prohibited because it will weaken its sensibility.A.ship shell

B.exterior of winches

C.hydrostatic release（靜水壓力釋放器）

D.hold ladders 在靜水壓力釋放器上涂上油漆會(huì)使它的靈敏度降低。因此是不能刷油漆的。

16.You are on watch and the pilot has just anchored the vessel.The next thing that you should do after the anchor has been let go is to_______.A.stop the engines

B.escort the pilot to the accommodation ladder C.plot the vessel’s position on the chart

D.make a round of the weather decks 無(wú)論引航員在船拋錨還是自己拋錨，在錨LET GO 的時(shí)候應(yīng)該立即記下船位，時(shí)間，船首向，在海圖上定下錨位，有時(shí)還需要向港口當(dāng)局報(bào)告。17.SOLAS is the abbreviation（縮寫(xiě)）of __________.A.International Maritime Dangerous Goods Carried by Sea B.International Code for the Construction and Equipment of ships Carrying Gases in Bulk C.International Convention for the Safety of life at Sea D.International Regulations for Preventing Collisions at Sea 18.The SOLAS Convention was developed（可以理解為制定）by the_________.A.IMDG conference

B.American Bureau of Shipping C.International Maritime Organization

D.American Institute of Maritime Shipping 19.How to determine the density（密度）of the slop（污水）after tank washing? A.By use of an interferometer（干涉計(jì)）

B.By use of a hydrometer（比重計(jì)）C.By use of an interface（界面）

D.By use of a thermometer（溫度表）20.Any discharge into the sea of oil or oily mixtures from ships to which this Annex of MARPOL 73/78 applies shall be _______except when special conditions are satisfied.A.required（要求）B.requested（被請(qǐng)求）C.promoted（促進(jìn)）D.prohibited（禁止）

除了特殊情況，船舶禁止向海中排放油或油類混合物。21.To EASE（松）A LINE means to ________.A.cast off

B.double up so that one line does not take all the strain C.pay out line to remove most of the tension

D.slack it off quickly 通常在碼頭靠泊時(shí)有時(shí)會(huì)因?yàn)樾敦浕虺彼脑颍|繩受力會(huì)增加，應(yīng)該松一松。22.Finally, when your ship is alongside, don’t forget__________.A.having rat guards（擋鼠板）properly mounted on your moorings B.to have rat guards properly mounted on your moorings C.to have rat guards properly mounted at your moorings

D.having rat guards properly mounted on your moorings Forget to do something忘記做某事。Forget doing something 忘記做過(guò)某事。

46903 23.THE SPEED OF A VESSEL ADJUSTED TO THAT OF A PILOT BOAT AT WHICH THE PILOT CAN SAFELY EMBARK is _______.A.Ground speed（對(duì)地速度）

B.Boarding speed（登船速度）C.Relative speed（相對(duì)速度）

D.Speed of the vessel（船速）

24.If you have steel wire ropes leading in the same direction with other ropes, which will take the most of the load? A.Steel wire rope

B.Manila（馬尼拉繩）C.Nylon（尼龍繩）D.Polypropylene（聚丙烯）rope 雖然不同的纖維繩的強(qiáng)度不同，但是他們與鋼絲繩相比強(qiáng)度都要弱。25.Heave（向上拉）is motion（運(yùn)動(dòng)）along the______.A.longitudinal axis（縱向）B.transverse axis（橫向）C.Vertical axis（垂直）D.centerline axis（中心軸線）

26.The side of a ship which is farther from the winds is______.（遠(yuǎn)離風(fēng)的一舷）

A.fairway side

B.open sea side

C.lee side（下風(fēng)舷）D.roadstead（水道）side A，B，D三個(gè)選項(xiàng)都不屬于船的某一舷。船有左舷，有右舷，有上風(fēng)舷，有下風(fēng)舷。27.A vessel is considered to be restricted in her ability to maneuver under the rules if she is______.（操限船）

A.at anchor（拋錨）B.mine-clearing（掃雷作業(yè)船）C.engaged in fishing（捕魚(yú)船）

D.engaged in towing（從事拖帶作業(yè)船）

28.Vessels shall be deemed to be in sight one another only when one ______ from the other.A.can be observed visually

B.can be observed by radar C.can be located on the radar

D.can be heard 避碰RULE3 “K”條目原話。

29.Every vessel shall proceed at a safe speed ______ the prevailing circumstances and conditions.A.adapted to

B.used by

C.liable to

D.adaptation to

避碰 RULE 16 的 B.Durations of light and darkness are equal C.Shows not less than 60 flashes per minute D.Shows quick flashes for about 5 seconds followed by a 1 second dark period 我國(guó)快閃為一分鐘60次，甚快為120次，超快為160以上。

33.A SEAMARK, LE.A BUOY, INDICATING THE NORTH, EAST, SOUTH OR WEST FROM A FIXED POINT, E.G.A WRECK is______.A.Entrance buoy

B.New buoy

C.Port buoy

D.Cardinal buoy 34.A line connecting all possible of your vessel at any given time is a______.A.Longitude line

B.Latitude line

C.Line of position

D.Fix 題目中應(yīng)該少個(gè)單詞POSITION，應(yīng)該加在POSSIBLE后面。意思為一條連接任一時(shí)間內(nèi)你船可能的位置點(diǎn)的線是位置線。35.Spring tides are tides that______.（大潮）

A.have lows lower than normal and highs higher than normal B.have lows higher than normal and highs lower than normal C.are unpredictable D.occur in the spring of the year 大潮發(fā)生在月球處在新月或滿月時(shí)，也就是太陽(yáng)和月亮潮汐橢圓體的長(zhǎng)軸方向一致時(shí)。此時(shí)高潮最高，低潮最低。36.Spring tide occur______.（大潮）

A.when the moon is new or full B.when the moon and sun have declination of the same name C.only when the moon and sun are on the same sides of the earth D.at the beginning of spring when the sun is over the equator 同上。

37.Deballasting a double bottom has what effect on KG?______.從雙層底中排壓載水會(huì)對(duì)重心高度產(chǎn)生什么影響？

A.KG is increased

B.KG is decreased C.KG is not affected

D.KG increases at light drafts and decreases at deep drafts 因?yàn)殡p層底中水的平均重心要比整船的平均重心要低，因此排完之后整船的平均重心要比原來(lái)高。從公式M。*KG。=M1*KG1+M2*KG2+?，M。為總重，KG。為開(kāi)始始平均重心。如果把M1和KG1看成是這里雙層底的壓載水，排出后公式兩邊都減去M1*KG1，38.The difference between the initial trim（吃水差）and the trim after loading is known as______.A.trim

B.change of trim

C.final trim

D.change of draft 原始吃水差與裝貨后的吃水差之間的差值當(dāng)然時(shí)吃水差變化量。D表示吃水變化。39.A semi-submersible which will not remain upright and will assume a list either to port or to starboard is likely to have______.A.a large TCG

B.a negative GM

C.excessive ballast

D.insufficient deck load 當(dāng)一條船如果不能維持正浮而且呈現(xiàn)出不是左傾就是右傾的現(xiàn)象，說(shuō)明他的GM為負(fù)

46903 值。

40.What is the main purpose of dunnage（墊艙物料）? A.To act as ballast for light vessels

B.To provide ventilation（提供通風(fēng)）and drainage

（排水）for cargo

C.To secure the tarpaulins（防水油布）in place

D.to support weakened bulkheads（防水壁）

41.All the holds to be loaded with grain must be swept ______commencement of loading.A.cleanly/during

B.clear/meanwhile

C.clean/between

D.clean/prior to Prior to 表示在…..之前

42.Protection of cargo against tainting（污染）damage can best be obtained by______.A.Ventilating the space B.Not ventilating the space C.Proper use of paper separation and dunnage

D.Segregation（隔票）of cargo by using different hatches 保護(hù)貨物免受污損的有效方法就是隔艙來(lái)進(jìn)行隔票。

43.A ship's forward draft is 22′04“and its after draft is 23′00”.The draft amidships is 23′04“.This indicates a concentration（集中）of weight______.A.at the bow

B.in the lower holds

C.amidships

D.at the ends 公式dm=(da+df)/2, 可以算出平均吃水比實(shí)際船中吃水要小，說(shuō)明船中裝的貨偏多了。44.Foreman, the ship ______, please get the stevedores to fill the port wings with heavier package.A.lists to starboard

B.is shifting to starboard C.is inclined to starboard

D.is listing to starboard 在左側(cè)裝重貨說(shuō)明船船有一定的右傾，用來(lái)調(diào)正船身。45.You are kindly requested to supply the necessary tallyman（理貨員）to do ______on board the ship during the discharging of the cargo.A.the tallying work

B.the lashing work

C.the cleaning work

D.the work of opening and closing hatches 46.During loading or discharging, the tallymen must make contact with ______on duty so as to solve problems on time.A.ship owner

B.ship's officers

C.shippers

D.consignors 在碼頭時(shí)大副不值班，二副三副值貨班，碼頭有什么事先找當(dāng)班駕駛員，如果駕駛員不能解決再找大副或船長(zhǎng)。47.CAPE WEST WIND WEST TO SOUTHWEST 15 TO 20 KNOTS WEATHER SHOWERS.This description is likely to be under the heading of_______.A.FORECAST

B.STORM WARNING C.GENERAL SITUATION

D.MAP ANALYSIS 有具體的風(fēng)和雨?duì)顩r，屬于天氣預(yù)報(bào)。題中CAPE WEST 是一個(gè)區(qū)域，風(fēng)是西轉(zhuǎn)西南風(fēng)15到20節(jié)，陣雨。

48.When air is at its dew point it______.46903 A.will contain no additional moisture

B.has the lowest relative humidity C.cannot keep up its moisture

D.has a low absolute humidity 當(dāng)空氣在露點(diǎn)溫度時(shí)水汽剛好平衡，溫度再下降就會(huì)有多余水份。

49.______causing strong winds and rough sea north west bay of Biscay

A.strong low pressure

B.strong high pressure C.steep pressure gradients（陡的氣壓梯度）D.steep gradients pressure 形成風(fēng)的主要原因就是水平氣壓梯度力。

50.In the doldrums（赤道無(wú)風(fēng)帶）you will NOT have______.A.high relative humidity

B.frequent showers and thunderstorms C.steep pressure gradients

D.frequent calms 既然是無(wú)風(fēng)則肯定沒(méi)有陡的氣壓梯度。

51.The best estimate of the wind direction at sea level can be obtained from observing the direction of the______ A.cloud movement

B.vessel heading

C.waves

D.swells 在海上通常有浪也有涌，涌時(shí)從遠(yuǎn)處而來(lái)，與附近海面關(guān)系不大，而浪是由于周圍的風(fēng)引起的，浪的來(lái)向也是風(fēng)的大致來(lái)向。

52.Most propellers（螺旋槳）on merchant vessels are constructed of（由?組成）______.A.manganese bronze（錳銅合金）B.cast iron C.mild steel D.improved plow steel 53.The collision bulkhead（防撞艙壁）is located______.A.on the bridge deck

B.between the passenger and cargo areas C.at the stern of the ship

D.as the first watertight bulkhead ahead 54.Which is the summer load waterline on the load waterline mark? ______.A.The first line at the bottom

B.The second line from the bottom C.The third line from the bottom

D.The fourth line from the bottom 看下圖及圖下文字。

55.All marine low-speed diesels are of what design?船上低速柴油機(jī)的設(shè)計(jì)原理？

A.Four-stroke

B.Two-stroke（二沖程）C.Electronic ignition

D.Forced exhaust

46903 56.The holding capability of an anchor is primarily determined（主要取決于）by the______.A.shape of the anchor

B.stowage of the anchor on board C.anchor's ability to dig in（噬土能力）D.size of the vessel and its draft 錨的抓力由錨的抓力和錨鏈的摩擦力組成，57.The required portable radio apparatus on an international voyage must be stowed in______.A.the Master's quarters B.the ship's office C.the radio room, bridge, or protected location D.an unlocked cabinet next to the station bill 通常用EMERGENCY VHF，配三只，外加三只備用電池。

58.A radar range（雷達(dá)測(cè)量的距離）to a small, charted object such as a light will provide a line of position in the form of______.A.straight line（直線）B.Arc

C.parabola（拋物線）D.Hyperbola（雙曲線）雷達(dá)距離位置線為一條弧線。

59.______is on the panel（控制面板）of radar.A.KEYLOCK

B.REPEATER C.STATIC INVERTER

D.ANTI-CLUTTER-SEA（抗海浪干擾）

60.Does current and drift affect the CPA/TCPA calculations on a true motion display?真運(yùn)動(dòng)模式中流是否會(huì)影響CPA/TCPA的計(jì)算。

A.Yes

B.No

C.Only a little bit

D.Yes, very seriously 61.If the magnetic heading is greater than the compass heading, the deviation（自差）

is______.A.east

B.west

C.north

D.south 從公式磁航向=羅航向+自差，所以這里的自差為正值。東正西負(fù)。62.Deviation is the angle between the______.A.true meridian and the axis of the compass card B.true meridian and the magnetic meridian C.magnetic meridian and the axis of the compass card D.axis of the compass card and the axis of the compass card 同上

63.Variation（磁差）is a compass error that you______.A.can correct by adjusting the compass card B.can correct by adjusting the compensating magnets C.can correct by adjusting the vessel's heading D.cannot correct 磁差是地球本身產(chǎn)生的，不能夠糾正和調(diào)整。

64.How much can the AIS broadcast made be overloaded without any significant operational effect?

A.50-100%

B.200-300%

C.400-500%

D.No overload is accepted

46903 65.Which statement concerning GPS is TRUE?

A.It cannot be used in all parts of the world.B.There are 12 functioning GPS satellites at present.C.It may be suspended without warning.D.Two position lines are used to give a 2D fix.由美國(guó)軍方控制。也可以用排除法，因?yàn)樗侨蚨ㄎ幌到y(tǒng)，排除A；由二十一顆工作衛(wèi)星和多顆備用衛(wèi)星在運(yùn)行，排除B；兩維定位要三條位置線，排除D。

66.The GPS satellite orbits the earth（衛(wèi)星繞地球的運(yùn)行周期）in approximately______.A.3 hours

B.6 hours

C.12 hours

D.24 hours 67.The maritime radio system consisting of a series of coast stations transmitting coastal warning is called______.A.NAVTEX

B.HYDROLANT/HYDROPAC

C.NAVAREA

D.SAFESEA C和D不屬于無(wú)線電系統(tǒng)，C為海域、D無(wú)義；B為大西洋和太平洋航行警告，只能算是系統(tǒng)發(fā)送的內(nèi)容，但不是系統(tǒng)。

68.Which action should you take after sending a false distress alert on VHF? A.send a DSC cancellation message on Ch-70.B.make a voice announcement to cancel the alert on Ch-16 C.make a voice announcement to cancel the alert on Ch-13 D.Make a voice announcement to cancel the alert on Ch-22A 當(dāng)在VHF上發(fā)生誤報(bào)警處理的方法就是在16頻道廣播取消。69.RESULT OF SEARCH NEGATIVE（搜救無(wú)效）means______.A.the search has found nothing

B.the derelict has been found C.the derelict has been located

D.the derelict has been sighted 70.If you receive the signal over radiotelephone of ”Romeo Papa Tango" while using the International code of signals, you should______.A.report to the caller B.repeat your last transmission C.continue since be received your last transmission D.end the transmission 71.The generators on your ship have shut down.Leaving you without navigation lights.Which emergency signal would you transmit over the VHF radio to alert vessels in the area of your predicament? A.Mayday Mayday Mayday

B.Pan Pan Pan C.Security Security Security

D.lights out lights out lights out MAYDAY 表示遇險(xiǎn)，PAN表示緊急，SECURITY表示安全。航行燈不亮只能算安全，因?yàn)樗挥绊懻５暮Ｉ虾叫小?/p>

72.The pilot(embarked)the ship at 1830 hours（選同義詞）

A.boarded（登船）

B.left

C.piloted

D.loaded 73.Cleaning, painting and repairing work is known as______.（敲銹，刷漆和修理工作）

A.maintenance work（保養(yǎng)工作）B.lashing work C.tallying work D.overtime work

46903 74.The lines forward from the bow（首纜）and aft from the stern（尾纜）when a vessel is moored to the dock（船塢）are ______.A.bow and stern lines

B.breast lines

C.halyards

D.warps 75.A common class of wire rope used for mooring is the 6×19 class.What does the 6 represent（表示）?（多少股）

A.Factor of safety

B.number of wires per strand C.number of strands（繩股）per wire rope

D.number of wires in the core 76.It is NOT advisable to use nylon for alongside towing because it______.A.stretches too much（彈性太強(qiáng)）B.is too difficult to make fast C.parts too readily

D.is too susceptible to mildew 尼龍繩由于彈性太強(qiáng)通常不用來(lái)做拖纜。

77.The end of the joint with the exterior threads is called the______.A.pin（銷）

B.stem

C.box

D.stand 78.An orange flag showing a black circle and square is a______.A.signal indicating a course change B.distress signal of asking to communicate with another vessel C.signal of asking to communicate with another vessel D.signal indicating danger 表示字母J。

79.The following information may not be required to be communicated to a distressed craft? A.Own vessel identity, call sign, name and position B.Own vessel speed and ETA to distressed craft C.distressed crafts true bearing and distance from ship D.Rescue award（獎(jiǎng)勵(lì)）if successful 海上人命救助是無(wú)償?shù)摹?/p>

80.A fuel-air mixture below the lower explosive limit（爆炸下限）is too______.A.rich to burn

B.lean to burn

C.cool to burn

D.dense to burn 可燃?xì)怏w在混合物中的比例如果低于爆炸下限則連燃燒都不可能。

81.Which of the following materials has the best heat conduction（熱傳導(dǎo)最好的材料）? A.gas

B.liquid

C.metal（鐵）

D.wood 82.A self-contained breathing apparatus（自給式呼吸器）is used to______.A.make underwater repairs to barges B.determine if the air in a tank is safe for men C.enter areas that may contain fumes or lack oxygen D.resuscitate（復(fù)蘇）an unconscious（無(wú)知覺(jué)）person B 選項(xiàng)應(yīng)該用測(cè)氧儀來(lái)測(cè)。水下作業(yè)雖然也要用到呼吸器，但不是我們船上的這種呼吸器，通常要能使用超過(guò)一小時(shí)。

83.What should you do with your emergency position indicating radio beacon if you are in a lifeboat during storm conditions?

A.Bring it inside the liferaft and leave it on.46903 B.Bring it inside the liferaft and turn it off until the storm passes.C.Leave it outside the liferaft and leave it on.D.Leave it outside the liferaft and turn it off.拿進(jìn)筏里的目的是為了防止大風(fēng)浪天氣將EPIRB打落。

84.After launching, an inflatable raft should be kept dry inside by ______.A.opening the automatic drain plugs

B.draining the water pocket C.using the electric bilge pump

D.using the bailers and cellulose sponge（海綿）A、B、C三個(gè)選項(xiàng)在救生筏中都是沒(méi)有的。

85.______ is the most visible signal of distress from a lifeboat at sea in the daytime.A.Smoke signal B.Flash signal C.Fire signal D.Radio emergency transmission D不是視覺(jué)信號(hào)，沒(méi)有C這種視覺(jué)信號(hào)，B為閃光燈信號(hào)，白天不容易被發(fā)現(xiàn)。86.Most minor spills of oil products are caused by ______.A.equipment failure

B.human error C.major casualties

D.unforeseeable circumstances 海上事故多數(shù)是人為，小量溢油也不例外。

87.You should FIRST treat a simple fracture by ______.A.attempting to set the fracture

B.preventing further movement of the bone C.applying a tourniquet

D.alternately applying hot and cold compresses 針對(duì)簡(jiǎn)單的骨折最初的處理就是將其固定。防止因挪動(dòng)擴(kuò)大傷勢(shì)。88.What is the proper first aid for LPG in the eye? A.Apply an ice pack to the eye.B.Keep the eyelid closed.C.Flush the eye with plenty of water.D.Rub the eye area clean.眼睛濺上液化石油氣應(yīng)用清水或牛奶洗。

二、關(guān)聯(lián)題（每組關(guān)聯(lián)題題干下有4個(gè)小題，每小題有4個(gè)選項(xiàng)）D.allow a certain amount of afterglow of targets 90.In the ship’s head up mode, if the ship rotates starboard-wise all fixed targets on the screen will appear to ______.A.rotate starboard-wise

B.rotate port-wise C.remain stationary

D.move on a reciprocal heading at the speed the ship is moving 91.Afterglow of targets will ______.A.have the ship’s heading marker fixed at 000° B.cause the fixed targets to remain fixed C.inhibit the detection of small targets D.make the identification of smaller targets difficult 92.It can be concluded that the instrument referred to in this passage is most likely a/an ______.A.ordinary radar

B.ARPA C.specially designed radar

D.radar which is out of order