08.4狹水道、冰區(qū)與運(yùn)河航行目錄8[2301]Yourvesselisapproachingabend.Youhearaprolongedblastfromaroundthebend.Youshould .backyourenginesB.stopyourenginesanddriftC.answerwithoneprolongedblastD.soundthedangersignalKEY:C你船正在接近一個(gè)灣頭。在灣頭附近你聽到一長(zhǎng)聲。你應(yīng)回答一長(zhǎng)聲。同原題庫0002[2302]Theprincipaldangerfromicecollectingonavesselisthe .decreaseincapabilitiesofradarB.decreaseindisplacementC.adverseeffectontrimD.lossofstabilityKEY:D船上結(jié)冰的最大危險(xiǎn)是穩(wěn)性損失。[2303]Whichwillmostlikelyoccurwhenenteringshallowwater?Rudderactionwillbecomemoreeffective.B.Thevessel'slistwillchange.C.Thevessel'strimwillchange.D.Anincreaseinspeedwilloccur.KEY:C當(dāng)船舶進(jìn)入淺水時(shí)，什么將最可能發(fā)生？船舶的吃水差將變化[2304]Youareonanice-reinforcedvesselabouttoenterpackice.Youshould .enterthepackonthewindwardsidewherethereisawelldefinediceedge---邊緣明顯的上風(fēng)一側(cè)trimtoanevenkeelorslightlydownbythebowtotakemaximumbenefitoftheicereinforcementtakemaximumadvantageofcoastalleadscausedbyoffshorewindslookforareasofrotteniceandenterperpendiculartotheiceedgeKEY:D你所在的冰區(qū)加強(qiáng)船將要進(jìn)入浮冰群。你應(yīng)尋找蜂窩冰的區(qū)域并垂直于冰的邊緣進(jìn)入。[2305]Aflashinggreenlightdisplayedatasinglelockmeansthatthelockis .readyforentranceB.readyforentrance，butgatescannotbeclosedcompletelyC.beingmadereadyforentranceD.notreadyforentranceKEY:A單一船閘上顯示的閃綠燈光意味著船閘已經(jīng)準(zhǔn)備好進(jìn)入。[2306]Aflashingredlightdisplayedatasinglelockmeansthatthelock .isreadytousebutvesselsmuststandclearB.isreadytouseandvesselsmayapproachC.cannotbemadereadyimmediatelyandvesselsshallstandclearD.cannotbemadereadyimmediatelybutvesselsmayapproachKEY:C單一船閘上顯示的閃紅燈光意味著船閘不能立即準(zhǔn)備好并且船舶應(yīng)讓開。[2307]ASEAROOMTOBEKEPTFORSAFETYAROUNDAVESSEL，ROCK，PLATFORM，ETC.，ORTHEPLACEASSIGNEDTOAVESSELWHENANCHOREDORLYINGALONGSIDEAPIER，ETCmeans .PortB.CommercialareaC.BerthD.RoadsteadKEY:C為船舶，巖石，平臺(tái)等或當(dāng)船舶錨泊或靠碼頭時(shí)指定給船舶的寬廣海面意思是停泊處。[2308]Asituationhasoccurredwhereitbecomesnecessaryforyoutobetowed.Whatactionshouldbetakentopreventyourvesselfromyawing?同原題庫1649Shiftweighttothebow B.ShiftweighttothecenteroftheboatC.Shiftweighttothestern D.ThrowexcessweightoverboardKEY:C發(fā)生一種情形致使你船有被拖帶的需要。你應(yīng)采取什么措施以防止艏搖？移動(dòng)重量到船艉[2309]Astreamofwaterimmediatelysurroundingamovingvessel'shull，flowinginthesamedirectionasthevesselisknownas .同原題庫3526directionalcurrent一方向流 B.forwardcurrent一正向電流C.propellercurrent一推進(jìn)器尾流 D.wakecurrentKEY:D一股直接圍繞于運(yùn)動(dòng)的船體，流向與船的運(yùn)動(dòng)方向一致的水流被稱為尾流（伴流，跡流）。[2310]Astretchwherethechannelchangesfromonesideoftherivertotheotheriscalleda .crossingB.transit C.transfer D.passingKEY:A航道自河的一邊改變到另一邊的一段距離叫做橫越。[2311]Astrongbackreferstoa . 同原題庫2608barsecuringacargoportB.centerlineverticalbulkhead---垂直艙壁中心線C.deepbeam---加強(qiáng)橫梁 D.spannerstay---兩吊桿柱之間的橫牽纜KEY:A強(qiáng)力背板指的是加固舷側(cè)裝貨門的材料。[2312]Atideiscalleddiurnalwhen . 同原題庫3520onlyonehighandonelowwateroccurduringalunardaythehightideishigherandthelowtideislowerthanusual一高低潮高比平常的更高和更低thehightideandlowtideareexactlysixhoursapart一高低潮之間精確相差6個(gè)小時(shí)twohightidesoccurduringalunarday一在一個(gè)太陰日內(nèi)發(fā)生兩個(gè)高潮KEY:A在一個(gè)太陰日（約24時(shí)50分太陽時(shí)）內(nèi)僅發(fā)生一次高潮和一次低潮的潮汐叫全日潮。[2313]Atowthatveerstothesideontheendofthetowlineissaidto .A.yaw---偏航，（船）首搖 B.surge---（船舶）縱蕩C.sway---搖動(dòng)，橫蕩 D.swing---搖擺，擺動(dòng)回轉(zhuǎn)KEY:A在拖纜末端轉(zhuǎn)向一側(cè)的拖帶表達(dá)為偏航。[2314]Atowboathasthesamedraftasthebargesitispushingahead.Ifthedistancefromthesternofthetowboattotheheadofthetowis260m，whereistheapproximatelocationofthepivotpointoftheunit?Attheheadofthetow B.75mfromtheheadofthetowC.120mfromtheheadofthetow D.180mfromtheheadofthetowKEY:B一艘拖輪與由其頂推的駁船具有相同的吃水。從拖輪尾部到拖帶船的首部的距離為260米，則該單元的旋轉(zhuǎn)點(diǎn)大約在什么位置？距拖帶首部75米處（距船首1/3到1/4船長(zhǎng)處）[2315]Atowingvesselshouldbeonthecrestofawaveatthesametimeasitstowandinthetroughatthesametime.Thetermusedtodescribethisis .xxhtowstrainB.catenarylengthC.beinginstep---齊步走，步調(diào)一致地D.Williamson'sTowKEY:C在拖帶處于浪谷的同時(shí)拖輪將處于波浪的浪尖。用于描述的術(shù)語為？？？[2316]Atug'shorsepoweravailableattheshaftis .A.indicatedhorsepower---額定馬力，指示馬力 B.brakehorsepower---制動(dòng)功率C.dynamichorsepower---凈實(shí)馬力，輸出功率 D.nethorsepower---凈馬力，有效功率KEY:B在拖輪傳動(dòng)軸上可利用的功率是制動(dòng)功率。[2317]AvesselisproceedingdownstreaminanarrowchannelontheWesternRiverswhenanothervesselissightedmovingupstream.Whichvesselhastherightofway?A.Thevesselmovingupstreamagainstthecurrent B.ThevesselmovingdownstreamwithafollowingcurrentC.ThevessellocatedmoretowardsthechannelcenterlineD.ThevesselwiththeleastamountofmaneuverabilityKEY:B一艘正在西方河狹水道向下航行的船舶當(dāng)他看見另一艘向上游航行的船時(shí)，哪一艘船具有優(yōu)先權(quán)？順流向下有航行的船[2318]Avesselproceedingalonganarrowchannelshall .同原題庫1629A.avoidcrossingthechannelatrightanglesB.notovertakeanyvesselswithinthechannelC.keepasnearassafeandpracticabletothelimitofthechannelonherstarboardsideD.whennearingabendinthechannel，soundalongblastofthewhistleKEY:C沿著狹水道航行的船舶應(yīng)安全可行地靠近航道的右側(cè)航行。[2319]Avesselproceedingalongthebankofariverorchannelhasthetendencyto .A.continueinlinewiththebank---繼續(xù)與岸邊成一直線 B.hugthebank---靠近岸邊C.sheerawayfromthebank D.increasespeed---速度增大KEY:C沿著河岸或航道航行的船舶具有轉(zhuǎn)向離開岸邊的趨勢(shì)。[2320]Avesselproceedingalongthecourseofanarrowchannelorfairwayshallkeepasneartothe limitofthechannelorfairwaywhichliesonher sideasissafeandpracticable.A.inner，port B.inner，starboard C.outer，port D.outer，starboardKEY:D沿狹水道或航道行駛的船舶，只要安全可行，應(yīng)盡量靠近其右舷的該水道或航道的外緣行駛。[2321]Avesselproceedingalongthecourseofanarrowchannelshallkeepasneartotheouterlimitofthechannelwhichliesonherstarboardsideasitissafeandpracticable．Whichoneofthefollowingsdoesthestatementexpress？A.Avesselshallproceedneartheothervesselonherstarboardsideonthenarrowchannelsinceitissafeandpracticable.Avesselshallavoidproceedingnearthestarboardouterlimitofanarrowchannelaslongasitissafeandpracticable.Avesselshallavoidproceedingalongthechannelbecauseitisnotsafeandpracticable.DAvesselshallproceednearthestarboardouterlimitofanarrowchanneltothedegreeinwhichitissafeandpracticable.KEY:D沿狹水道或航道行駛的船舶，只要安全可行，應(yīng)盡量靠近其右舷的該水道或航道的外緣行駛。以下哪一個(gè)是陳述的表達(dá)？船舶應(yīng)沿著狹水道安全可行的右舷外緣航行[2322]Avesselreducesspeedwithoutbacking.Theratethatherspeedthroughthewaterdecreasesdependsprimarilyonthe .A.vessel'shorsepowerB.seastateC.numberofpropellersD.vessel'sdisplacementKEY:D船舶在沒有倒車的情況下減速。其通過水面的速度減少率主要取決于船舶的排水量。[2323]Avesselshallbedeemedtobeovertakingwhenshecanseeatnight .同原題庫0428A.onlythesternlightofthevessel B.asidelightandonemastheadlightofthevesselC.onlyasidelightofthevessel D.anylightsexceptthemastheadlightsofthevesselKEY:A在夜間，當(dāng)她僅能夠看到他船的艉燈時(shí)應(yīng)被認(rèn)為處在追越中（答案不恰當(dāng)）[2324]Avesselshallslackenherspeed，stop，orreverseherengines，ifnecessary，to .A.avoidcollision B.allowmoretimetoassessthesituationC.bestoppedinanappropriatedistance D.AlloftheaboveKEY:D假如必要，船舶應(yīng)減速，停車，或倒轉(zhuǎn)主機(jī)以避免碰撞，以獲得更多的時(shí)間估計(jì)局面，在適當(dāng)?shù)木嚯x內(nèi)停住同原0425[2325]AvesselshowingarigidreplicaoftheInternationalCodeflagAisengagedin .A.divingoperationsB.dredgingC.fishingD.mineclearanceoperationsKEY:A顯示國(guó)際信號(hào)字母A旗的剛制復(fù)制品的船舶是在從事潛水作業(yè)的船。[2326]Avesselthepassageofwhichisnottobeimpeded tocomplywiththisRulewhenthetwovesselsareapproachingoneanothersoastoinvolveriskofcollision.A.remainsfullyobligedB.hasnoobligationC.isnotnecessarilyD.isexemptedKEY:A當(dāng)兩船相互接近致有碰撞危險(xiǎn)時(shí)，其通過不得被妨礙的船舶仍有完全遵守本章各條規(guī)定的責(zé)任。[2329]Allpersonsorvesselswithinthelockarea，includingthelockapproachchannels，comeundertheauthorityofthe .A.dockmasterB.dockcaptain C.lockmasterD.lockforemanKEY:C船閘區(qū)域內(nèi)的所有人員或船只，包括通往船閘的航道都受閘門監(jiān)視人的權(quán)利控制。[2330]Analternatinglight .A.showsalightwithvaryinglengthsofthelightedperiodB.showsalightthatchangescolorC.marksanalternatelesser-usedchannelD.isusedasareplacementforanotherlightKEY:B變色光（互光）顯示變化的燈光。[2331]Ananchoredvesselisservicinganaidtonavigationandisrestrictedinherabilitytomaneuver.Whichlightswillsheshow?Threeall-roundred-white-redlightsinaverticallineandanchorlightsThreeall-roundred-white-redlightsinaverticallineONLYAnchorlightsONLY D.AnchorlightsandsidelightsONLYKEY:A一艘拋錨船正在維修助航設(shè)施并其操縱能力受到限制。她應(yīng)顯示哪些燈光？垂直三盞紅白紅環(huán)照燈和錨燈（操限船）。[2332]Anyvesselshall，ifthecircumstancesofthecaseadmit，avoid inanarrowchannel.同原題庫0382A.anchorB.toanchor C.anchoring D.toanchoringKEY:C任何船舶，如當(dāng)時(shí)環(huán)境許可，都應(yīng)避免在狹水道內(nèi)錨泊。冰區(qū)航行[2327]Avesselwhichisbeingassistedbyanicebreakershouldindicatethatsheisreadytocastoffthetowlineby .A.displayingcodeletterY（Yankee）B.soundingfiveshortblastsonhiswhistleC.displayingcodenumeral5 D.soundingoneprolongedblastonhiswhistleKEY:A處于破冰船協(xié)助中的船舶當(dāng)其準(zhǔn)備好解脫拖纜時(shí)應(yīng)以信號(hào)Y旗表示。[2328]Avesselwhichisbeingassistedbyanicebreakerwoulddisplayaflaghoistconsistingofthecodenumeral4whenthevessel .A.speedbeginstodropB.stops C.receivesicedamageD.becomesiceboundKEY:D處于破冰船協(xié)助中的船舶當(dāng)其被冰困時(shí)將顯示一個(gè)升起的數(shù)字信號(hào)旗4。[2333]Beforeenteringanicearea，theshipshouldbe . 同原題庫3867A.eithertrimmedbytheheadorthestern B.onanevenkeelC.trimmeddownbythehead D.trimmeddownbythesternKEY:D進(jìn)入冰區(qū)前，船舶應(yīng)調(diào)整為尾傾。[2334]Foroperationsinpackice，avesselshould .A.beonanevenkeel B.betrimmedslightlybytheheadC.haveadragofnotmorethan60-90centimetersD.beballastedsotheforefootisnearthesurfaceKEY:C在浮冰群中操作，船舶應(yīng)具有的流錨不得超過60-90厘米。[2335]Iceblinkis .thedarkappearanceoftheundersideofacloudlayerduetoreflectionofasurfaceofopenwaterthesoftlightappearanceontheundersideofacloudlayerduetoreflectionfromasurfaceofopenwatertheyellowish-whiteglareontheundersideofacloudlayer D.watersky---水照云光KEY:C冰映光是云層下部黃白色的水平線冰反光。[2336]Ifatowsinksinshallowwater，youshould .A.releaseitimmediately B.attempttobeachitbeforeitgoesunderC.payoutcableuntilit'sonthebottomandplaceabuoyontheupperendD.shortencabletokeepitoffthebottomKEY:C假如被拖船在淺水中沉沒，你應(yīng)松出纜繩直到其到達(dá)海底并在其上末端置上浮標(biāo)。[2337]Ifthesituationarosewhereitbecamenecessarytotowadisabledvessel，whichstatementisTRUEconcerningthetowingline?Thetowinglinebetweenthetwovesselsshouldbeclearofthewater.Thetowinglineshouldbetautatalltimesbetweenthevessels.Thereshouldbeacatenarysothelinedipsintothewater. D.NoneoftheaboveKEY:C如果情形導(dǎo)致變得有必要去拖帶一艘失去動(dòng)力的船，關(guān)于拖纜哪一句是真的？那必須有一定浸入水中的懸垂量TOC\o"1-5"\h\z[2338]Inmostcases，whenalargemerchantvesselentersshallowwaterathighspeedthe .A.maneuverabilitywillincreaseB.speedwillincreaseC.bowwillsquatfartherthanthesternD.vesselwillriseslightly，onalevelplaneKEY:C在大多數(shù)情況下，當(dāng)一艘大型的商船以高速進(jìn)入淺水區(qū)域時(shí)，船首下沉量大于船尾下沉量。[2344]Theproximityofpackicemaybeindicatedby .A.changesinseawatersalinity---海水鹽度的變化 B.glareoncloudsonthehorizonC.changesinairtemperature---空氣溫度的改變 D.icebergs---冰山KEY:B大塊浮冰群的接近可以通過地平線上云朵的眩光而被顯示。[2345]Topsideicingdecreasesvesselstabilitybecauseitisusuallyoff-centerand .A.increasesdisplacementB.increasestheheightofthecenterofgravityC.increasesdraftD.reducesthepocketingoffreesurfaceKEY:B水線以上的結(jié)冰減少船舶穩(wěn)性因?yàn)樗ǔＦx中心且提高重心高度。[2346]Topsideicingdecreasesvesselstabilitybecauseitincreases .A.displacementB.freesurfaceC.draftD.KGKEY:D水線以上的結(jié)冰減少船舶穩(wěn)性因?yàn)樗黾恿薑G值。[2347]Topsideicingthatblocksfreeingportsandscuppers .A.isusuallybelowthecenterofgravityandhaslittleeffectonstabilitywillcausewaterondecktopocketandincreasestabilitymaydecreasestabilitybyincreasingfreesurfaceeffectduetowaterondeckincreasestheeffectivefreeboardandincreasesthewind-heelaffectKEY:C水線以上的結(jié)冰堵塞排水孔，而由于甲板上水的自由液面增加的影響而減少穩(wěn)性高度。[2349]Whenoperatinginanareawhereseaiceandicebergsarepresent，whichstatementisTRUE?A.Icebergsmaytravelinadirectionmanydegreesdifferentfromtheseaice.Bothicebergsandseaicewillmoveinapproximatelythesamedirectionandatthesamespeed.Icebergsandseaicewillmoveinthesamedirection，butatdifferentspeedsduetothesaileffectoftheberg.D.Icebergsandseaicewillmoveinthesamedirection，buttheicebergwillmoveslowerbecauseofitsunderwaterbulk.KEY:A當(dāng)在海冰和冰山出現(xiàn)的區(qū)域里操縱時(shí)，哪一句是正確？冰山漂移的方向與海冰漂移的方向可能有許多度的差異。[2366]Multi-yeariceisthehardestseaiceandshouldbeavoidedifpossible.Itisrecognizablebecauseofwhattonetoitssurfacecolor?GreenishB.BluishC.GreyD.Grey-whiteKEY:B陳年冰是最堅(jiān)硬的海冰并應(yīng)盡可能被避免。由于其表面顏色帶藍(lán)色的色調(diào)而使其可辨認(rèn)。狹水道航行TOC\o"1-5"\h\z[2339]Inordertoreduceyourwakeinanarrowchannelyoushould .A.applyenoughruddertocountertheeffectofthecurrentB.changeyourcoursetoazigzagcourseC.reduceyourspeed D.shifttheweighttothesternKEY:C在狹水道中為了減少你船的伴流你應(yīng)減速。[2340]Inselectingatugformovingavessel，considerationshouldbegiventoits .A.indicatedhorsepower，bollardpull，anddisplacement B.indicatedhorsepower，maneuverability，anddisplacementC.indicatedhorsepower，bollardpull，andmaneuverabilityD.Bollardpull,displacement,andmaneuverabilityKEY:D在選擇拖輪協(xié)助操船時(shí)，靜拖力，排水量和操縱性能必須被考慮。[2341]Onasingle-screwvesselthesternframe ，A.furnishessupporttotherudder，propellershaft，andtransomframeB.providesfoundationsforaftermooringwinchesC.providesfoundationsforthemainpropulsionenginesD.transfersthedrivingforceofthepropellertothehullKEY:A單螺旋槳船的船尾構(gòu)架給舵，螺旋槳傳動(dòng)軸和尾肋骨提供支撐。[2342]Onatwin-screw，twin-ruddervessel，themosteffectivewaytoturninyourownwater，withnowayon，istoput .A.oneengineaheadandoneengineastern，withfullrudderoneengineaheadandoneengineastern，withruddersamidshipsbothenginesahead，withfullrudder D.bothenginesastern，withfullrudderKEY:A對(duì)于雙車雙舵船，在水中船不前進(jìn)最有效地轉(zhuǎn)動(dòng)你船的方法是一車進(jìn)一車退，并滿舵[2343]Smallfloesofrough，hummockyseaicecapableofdamagingavessel .A.canusuallybedetectedbyradarinasmoothseaatarangeof4to6kilometersareindistinguishablefromseareturnonthePPIareinvisibletoradarwhencoveredwithathicklayerofsnowareusuallyseenatnightbeforetheyarecloseenoughtoprovidearadarechoKEY:A少數(shù)能夠損壞船舶的粗糙圓丘般的海冰通常在4到6公里的平靜海面能夠被雷達(dá)探測(cè)到。[2348]Twovesselsareabreastofeachotherandpassingporttoportinaconfinedwaterway.Whatshouldyouexpectasyourbowapproachesthescrewsoftheothervessel?A.Yourspeedwillsignificantlyincrease. B.Yourdraftwillsignificantlydecrease.C.Yourbowwillsheertowardstheothervessel.D.Yourbowwillsheerawayfromtheothervessel.KEY:C兩船在限制水域里并排并且左對(duì)左通過。當(dāng)你船船首接近他船螺旋槳時(shí)你將預(yù)期到什么？你船船首將向他船偏（航）轉(zhuǎn)[2350]Whenpushingahead，wiresleadingfromthequartersoftheafteroutboardbargestothebowofatowboat_preventthetowboatfromslidingwhentherudderismovedpreventthebargesfromspreadingoutwhenbackingdownholdthetowboatsecurelytothebargesD.preventthesidewisemovementofthefacebargesKEY:B當(dāng)進(jìn)行船首頂推時(shí)，鋼索線從后面外舷的駁船尾部引到拖船的船首部以防止當(dāng)其倒車時(shí)駁船散開。[2351]Astheweatherwasworseningandwindforcerisingto8，myvessel wereyawingwithinfortydegreesofthecompass.A.alongsidethewharf---靠碼頭 B.groundedinthechannel---擱淺C.atbuoys---系浮筒 D.atanchorKEY:D當(dāng)天氣惡化并風(fēng)力增強(qiáng)到8級(jí)，錨泊中的我船艏搖達(dá)40度。[2352]Atthattimemyshipandotherswere within40degreesofthecompass.A.yawingB.moving C.turning D.pitchingKEY:A那時(shí)我船和其他船偏航角在羅經(jīng)上達(dá)40度。TOC\o"1-5"\h\z[2353]Avesselistiderodewhenitis .A.carryingextraruddertocompensateforthecurrentB.necessarytoadjustthecoursesteeredtoallowforthecurrentC.atanchorandstemmingthecurrentD.beingforcedoffofapierbythehydrauliceffectofthecurrentKEY:C頂流錨泊。[2354]AvesselwillNOTshowsidelightswhen .A.underwaybutnotmakingway B.makingway，notundercommandC.notundercommand，notmakingwayD.trollingunderwayKEY:C船舶失去控制且不對(duì)水移動(dòng)時(shí)將不顯示舷燈[2355]AvesselwithalargeGMwill .A.havemoreresistancetolistingincaseofdamageB.havelesstendencytohavesynchronousrollingC.belesslikelytohavecargoshift D.ridemorecomfortablyKEY:A具有大GM值的船萬一在受損時(shí)抵御橫傾的能力較大。[2356]AllofthefollowingareengagedinfishingEXCEPT .A.Avesseltrawling---拖網(wǎng)船 B.Avesseltrolling---曳釣漁船C.Avesselsettingnets---布網(wǎng)魚船 D.Avesseltendinglines---看護(hù)釣魚線的船KEY:B以下除曳釣漁船外都是從事捕魚的船舶。[2357]Aninclinedsemi-submersiblewithaveryshortrollingperiodaboutaconstantangleoflistislikelytohaveA.anoff-centerTCG（重心橫向距中距離） B.anLCGgreaterthanlevelvesselLCBC.anegativeGM D.excessivefreesurfacesKEY:A一個(gè)傾斜的半潛體固定在一個(gè)傾斜角并有很短的橫搖周期很可能是重心橫向距中有一個(gè)距離。TOC\o"1-5"\h\z[2358]Asarule，shipsofmostconfigurations，whendriftingincalmwaterwithnegligiblecurrent，willlie .A.bowtothewind—首向風(fēng) B.beamtothewindC.sterntothewind一尾向風(fēng) D.withthewindonthequarter—尾部順風(fēng)KEY:B通常，大多數(shù)結(jié)構(gòu)的船舶，當(dāng)其漂流在可忽略水流的平靜水中將呈現(xiàn)正橫向風(fēng)狀態(tài)。同原題庫3460[2359]Byday，yousightavesseldisplayingthreeshapesinaverticalline.Thetopandbottomshapesareballs，andthemiddleshapeisadiamond.Itcouldbea .A.vesseltrollingB.mineclearingvessel（不一定在作業(yè)）C.trawlerD.vesselengagedinreplenishmentatseaKEY:D在白天，你看見一艘船舶顯示三個(gè)垂直號(hào)型。上部和底部為球體，中間為菱型體。它應(yīng)是海上從事補(bǔ)給的船舶（操限船號(hào)型）[2360]FLOATING，CAUSEDBYWINDSANDCURRENTWITHADETERMINABLEDIRECTIONdefines .A.FloatingB.SailingC.DriftingD.RunningintodangerKEY:C由風(fēng)和流確定其漂浮方向的漂流定義為漂航。[2361]ForthepurposeoftheRules，exceptwhereotherwiserequired，theterm .A.vesselincludesseaplanesB.seaplaneincludesnon-displacementcraftC.vesselengagedinfishingincludesavesselfishingwithtrollinglinesvesselrestrictedinherabilitytomaneuverincludesfishingvesselsKEY:A就本規(guī)則而言，除另有要求外，術(shù)語船舶包括水上飛機(jī)。[2362]Howarerivetedlapjointsmadewatertight?A.Thefayingsurfacesarecoatedwithwhitelead(orsimilarproduct)beforetherivetsareset.---在鉚釘固定以前，接合面涂上鉛白(或相似產(chǎn)品)Asealingweldbeadof1/8orlesspitchisrunalongtheplateedge.Theplateedgeissplitclosetoanadjacentplateandmechanicallyforcedintocontactwiththeadjacentplate.Aproperlyrivetedjointwillbewatertight;anyleakageisstoppedbysettingupontherivets.KEY:C被鉚接的搭接接頭如何進(jìn)行水密？板邊分開靠近相鄰的板并機(jī)械強(qiáng)力連接相鄰板[2363]IfavesselisengagedinfishingaccordingtothedefinitionsintheRules，itwillhave .A.gearextendingfromthesideorsternB.gearthatrestrictsmaneuverabilityC.lessthan50percenttrollinglinesD.NoneoftheaboveKEY:B假如符合規(guī)則中定義的從事捕魚的船舶，則她將有限制其操縱性的漁具。[2364]IfyourvesselhasaGMof