技能认证船舶英语考试(习题卷4)

试卷科目：技能认证船舶英语考试技能认证船舶英语考试(习题卷4)PAGE"pagenumber"pagenumber/SECTIONPAGES"numberofpages"numberofpages技能认证船舶英语考试第1部分：单项选择题，共30题，每题只有一个正确答案,多选或少选均不得分。[单选题]1.Thefunctionofarefrigerationplantistoactasa______sothatroomscanbemaintainedatlowtemperaturesforthepreservationoffoodstuffs.A)heatB)wetC)hydraulicD)rotary答案:A解析:[单选题]2.TheGPSsystemwasdesignedfor______satellites.A)3.0B)12.0C)18.0D)24.0答案:D解析:[单选题]3.Allecho-sounderscanmeasurethe______.A)actualB)actualC)averageD)average答案:B解析:[单选题]4.Theprimaryfunctionofanelectricmotoristo_____.A)developB)generateC)produceD)generate答案:A解析:[单选题]5.Theabbreviationof?PF?intheelectrotechnicsfieldequivalentsto______.A)powerB)powerC)performanceD)pulse答案:B解析:[单选题]6.Intheelectricpropulsionsystem,wemustuseanelectricdrivingmotorof______.A)constantB)controllableC)stabilizedD)steady答案:B解析:[单选题]7.Theemergencygeneratororemergencybatteryisconnectedto_____onmostlargeships.A)distributionB)sectionC)emergencyD)main答案:C解析:[单选题]8.Themaingeneratorsareconnectedto_____.A)distributionB)sectionC)emergencyD)main答案:D解析:[单选题]9.Anotherwordforsoftwareis______.A)hardwareB)programC)programmingD)an答案:B解析:[单选题]10.TheIntegratedBridgeSystemisusedto______.A)maintainB)monitorC)planD)display答案:A解析:[单选题]11.IftheETOmeasuredtheinsulationresistancefrequently,thismotor______burnout.A)willB)didC)wouldD)do答案:C解析:[单选题]12.Thewheelhouseissituatedin______.A)bridgeB)captainC)boatD)accommodation答案:A解析:[单选题]13.Inmorerecentyears,______hasbeenusedbyciviliansinmanynewwaystodeterminepositions,suchasinautomobileandboatnavigation,hiking,emergencyrescue,andprecisionagricultureandmining.A)GPSB)GMDSSC)AISD)Navtex答案:A解析:【注】GPS：全球定位系统；GMDSS：全球海上遇险安全系统；Navtex：航警电传[单选题]14.Theship?slogisthenavigationequipmenttomeasuresailingspeedandaccumulatevoyage.Thetraditionaltypesdon?tinclude______.A)theB)theC)theD)the答案:D解析:[单选题]15.TheconstituentpartsofAUTOCHIEF-IVmainengineremotecontrolsystemdon?tinclude______.A)digitalB)AC-4C)AC-4D)hydraulic答案:D解析:[单选题]16.Whatdoesthispictureshow?A)AB)AC)AnD)A答案:A解析:[单选题]17.Thetwobasictypesofcomputersoftwareare______and______.A)program,B)productivity,C)applications,D)systems,答案:C解析:[单选题]18.TheDGS8800edigitalgoverningsystemusedinAC-4mainenginecontrolsystemis______.A)aB)aC)onlyD)a答案:A解析:[单选题]19.WhenTRON-30SS-EPIRBis____,theauto-transmittingwillstart.A)putB)switchC)storedD)mounted答案:A解析:【注】TRON-30S型号的S-EPIRB垂直放入水中时开始自动发射报警。[单选题]20.Radarmakesitpossibleandmuchsaferforustosail______.A)inB)inC)inD)in答案:A解析:【注】boisterous：凶猛的，粗鲁的[单选题]21.Whichofthefollowingdoesnotbelongtodeckmachines?A)OilB)CargoC)Windlass.D)Hatch答案:A解析:[单选题]22.Theoperatingsystemsofapersonalcomputerdon?tinclude______.A)MicrosoftB)DOSC)MicrosoftD)UNIX答案:A解析:[单选题]23.Whenthereisaflamefailureinanautomaticallyfiredauxiliaryboiler,the______.A)airB)fuelC)waterD)safety答案:B解析:[单选题]24.Whichofthefollowingstatementsisright?A)TheB)TheC)TheD)The答案:D解析:【注】当SART与EPIRB组合在一起时可以工作在自浮位置。[单选题]25.TWOSTEPCONTROLERACTIONismainly________.A)proportionalB)integralC)derivativeD)on-off答案:D解析:【注】twostepcontroller：双级控制器；proportionalcontrol：比例控制；integralcontrol：积分控制；derivativecontrol：微分控制；on-offcontrol：开关控制，通断控制，双位控制[单选题]26.Aprocessofcomparingtheactualperformanceofamachinewiththeintendedperformance,andthenadjustingthemachinetoreduceandeventuallyeliminatethedifferencebetweentheactualandintendedperformanceiscalled______.A)openB)feedbackC)combiningD)integral答案:B解析:【注】actualperformance：实际性能；intendedperformance：预期性能[单选题]27.Thevoyagedatarecorder(VDR)cansavetheship?spositions,trends,ordersandmaneuveringinarestorablemode.ItsconstituentpartsdoNOTincludethe______.A)dataB)protectiveC)interfaceD)data答案:D解析:[单选题]28.Iftheresistanceofacircuitiscutinhalfandtheappliedvoltageiskeptconstant,thecurrentflowwillbe_____.A)doubledB)quadrupledC)unchangedD)cut答案:A解析:【注】quadruple：四倍。根据欧姆定律公式I=U/R，可以导出R=U/I（I：电流；U：电压；R：电阻）。[单选题]29.______willformthebasisfordistressalertingandsafetycalling.A)GMDSSB)EGC)D)MSIE)DS答案:D解析:【注】DSC将构成遇险报警和安全呼叫的基础。[单选题]30.TheAutoChiefC20ACPisthemainoperatorcontrolpanel,normallysituated______.A)onB)inC)bothD)andE)F)eitherG)or答案:C解析:第2部分：判断题，共70题，请判断题目是否正确。[判断题]31.Thedraughtatwhichashipfloatsissimplythedistancefromthebottomoftheshiptothewaterline.船舶浮在水面时的吃水,可简单地看成为船底到水线的距离。A)正确B)错误答案:对解析:[判断题]32.Ithasalreadybeenstatedwhendealingwithbuoyancyandstabilityproblemsthattheforcesgeneratedbythesepressureshaveaverticalresultantwhichisexactlyequaltothegravitationalforceactingonthemassoftheship,i.e.,isequaltotheweightoftheship.早已经说过,在处理浮力和稳性问题时,这些压力产生的力有一个垂向合力,它与作用在船舶质量的重力刚好相等,也即等于船舶的重量。A)正确B)错误答案:对解析:[判断题]33.Inthefirstplacethedimensionsbywhichthesizeofashipismeasuredwillbeconsidered;theyarereferredtoas?principaldimensions?.首先考虑衡量船舶大小的尺度,称它们为?主尺度?。A)正确B)错误答案:对解析:[判断题]34.Oiltightortankbulkheadsarewatertightintheirconstructionbutaresubjectedtomorerigoroustestingthanasimplywatertightbulkhead.油密舱壁或液舱舱壁在结构上是水密的,但它们比仅要求水密的舱壁要经受更为严格的试验。A)正确B)错误答案:对解析:[判断题]35.Itiscalledamidshipsormidshipsandthesectionoftheshipbythisplaneisthemidshipsection.它称为船舯。船体在这个位置的横剖面称为中横剖面。A)正确B)错误答案:对解析:[判断题]36.Thestudyofshipinteractionwillsurfacewaveshasseenintenseeffortbyhydrodynamicists,sinceitisadifficultfieldinwhichtoextractmeaningfulresultsfromtheorywhilebeingonewherethebenefitsofsolutionsaregreat.在这个领域里,通过理论得出有意义的结论非常困难,但是可以带来巨大收益,因此,船舶水动力学家针对船与表面波之间的相互作用进行了大量研究。A)正确B)错误答案:对解析:[判断题]37.Thecoupleformedbytheforcesofbuoyancyandgravityintheabovediscussionis,quantitatively,theproductoftheweightoftheshipandthedistancebetweenthetwoforces.Theperpendiculardistancebetweenthelinesofactionofthetwoforcesiscommonlycalledtherightingarm(GZ).Whentheweightordisplacementoftheshipisconstant,wecanusethevalueofGZasameasureofthestaticstabilitythroughallangelsofinclination.上面讨论的力偶由浮力和重力形成,大小等于船舶重量与两个力之间距离的乘积。两个力的作用线间的垂直距离通常称为扶正力臂(GZ)。当船舶重量或排水量不变时,我们可以通过GZ值来估计船舶在任意倾斜角的静稳性。A)正确B)错误答案:对解析:[判断题]38.Itwasconsideredthatthesafetyofpassengershipswasasubjectforstudyonaninternationalbasis,sothataftertheTitanicdisasteraninternationalconferencewasheldin1914.人们普遍认为客船安全性是一个国际性的研究课题,所以泰坦尼克号失事后,1914年召开了一次国际会议。A)正确B)错误答案:对解析:[判断题]39.Themostsignificantclassofdisplacementhullforspecialapplicationisthesubmarine,avesselforcompletelysubmergedoperation.排水型船中,最重要的一种特殊功用船型是潜水艇,它是一种可以完全没入水中航行的船。A)正确B)错误答案:对解析:[判断题]40.Thepreviouslydiscussedcargoshipsaredesignedfortheminimum(oratleastcompetitive)?requiredfreightrate?,whichinvolvespredictingthe?lifecyclecost?oftheship,includingtheacquisitioncosts,theoperatingandmaintenancecosts,andanysalvagevalueremainingwhentheshipissold.先前讨论的货船就是为最低(或至少有竞争性的)?必要运费率?而设计的,这涉及到预估船舶的服役周期成本,包括购置成本,运维成本,及船舶出售时的残值。A)正确B)错误答案:对解析:[判断题]41.Icebreakers破冰船A)正确B)错误答案:对解析:[判断题]42.Inaddition,ashipthatmustmaneuverwellwhilebackingisoftenfittedwithapairof"flankingrudders"foreachpropeller.Thesearepositionedforwardofthepropeller,oneoneachsideoftheshaft.另外,通常对倒车性能良好的船,每个螺旋桨都配有一对?侧翼舵?。这些侧翼舵安装在螺旋桨的前面位置,轴的两侧各一个。A)正确B)错误答案:对解析:[判断题]43.Smaller,lesscomplexvesselsmaynotrequireeveryplanlistedforadequatedefinition,butthelistdoesprovideanindicationofthelevelofdetailconsideredincontractdesign.小型简单船可能不需要所列出的每个计划来充分定义,但是该列表的确指出了合同设计中应考虑到的细节程度。A)正确B)错误答案:对解析:[判断题]44.Highspeedcraft-hovercraft,multi-hullships,hydrofoilcraft高速船:气垫船、多体船、水翼艇A)正确B)错误答案:对解析:[判断题]45.Thefinalstageofshipdesignisthedevelopmentofdetailedworkingplans.船舶设计的最终阶段是给出详细的施工图。A)正确B)错误答案:对解析:[判断题]46.Theinteractionsthatgoverntheresistanceofthehullofsteadyforwardmotion-aresistancethatdeterminesthechoiceofpropulsivepower-usuallydemandthegreatestattentionfromthenavalarchitect.这种作用决定了匀速向前运动的船体阻力。该阻力又决定了推进动力的选择,所以通常是造船师最需要优先关注的。A)正确B)错误答案:对解析:[判断题]47.Theveryfirsteffort,conceptdesign,translatesthemissionrequirementsintonavalarchitecturalandengineeringcharacteristics.第一步,概念设计是将目标需求转换成造船工程特征参数。A)正确B)错误答案:对解析:[判断题]48.Modeltestingconsistsoftowingapreciselymademodelofthehullatapreciselycontrolledspeed,incalmwater,whilemeasuringtheforcerequiredtotowit.模型试验指的是在静水中以严格控制的速度来拖曳一个精确制造的船体模型,然后测量拖曳力。A)正确B)错误答案:对解析:[判断题]49.Duetothecomplexityassociatedwithoperatinginamarineenvironment,navalarchitectureisaco-operativeeffortbetweengroupsoftechnicallyskilledindividualswhoarespecialistsinparticularfields,oftencoordinatedbyaleadnavalarchitect.鉴于船舶在海洋环境中航行的复杂性,造船工程是由具备特定领域专长的技术人员组成的各小组通力合作并由一位总造船师统筹协调完成的。A)正确B)错误答案:对解析:[判断题]50.Itisconvenientifthewaterplanesandthetransverseplanesareequallyspacedanddatumpointsareneededtostartfrom.若各水线面和横剖面的间距相等,且设置基准点作为起始,将是非常方便的。A)正确B)错误答案:对解析:[判断题]51.Now,whentheshipisheeledbyanexternalincliningforceandthecenterofbuoyancyhasbeenmovedfromthecenterlineplaneoftheship,therewillusuallybeaseparationbetweenthelinesofactionoftheforceofgravityandtheforceofbuoyancy.当船舶受到外力作用发生倾侧、浮心偏离船舶中线面时,重力与浮力作用线将发生分离。A)正确B)错误答案:对解析:[判断题]52.Reliabilityundercombatconditions,theappearanceofmilitarypower,crewhabitabilitythatinfluencesreenlistment,andthepoliticalimportanceofwhobecomestheprimecontractorandprincipalweaponssystemsubcontractors:allthesearefactorsthatmustbetakenintoconsideration,makingtheconstructionandoperationofwarshipsveryexpensivefortaxpayers.战斗状态时的可靠性、武装性能、影响服役期限的人员可居性,及谁能成为舰艇第一承包商和武备系统分包商的政治因素:所有这些因素都应该考虑,这就使得舰艇的建造和运营代价对于纳税人来说非常昂贵。A)正确B)错误答案:对解析:[判断题]53.TheSafetyConventionwasnotonlyconcernedwiththewatertightsubdivisionofpassengershipsandtheassociatedproblemofsafetyinthedamagedcondition,butalsolaiddownregulationsgoverningotheraspectsofsafety,suchasfiredetectionandextinguishingandfireprotection,machineryandelectricalinstallation,lifesavingappliancessuchasboatsandthemeansforlaunchingthem,radiotelegraphyandradiotelephony,safetyofnavigation,carriageofgrainanddangerouscargoesandregulationsrelativetonuclearships.安全公约不仅涉及客船水密分舱和破损时的相关安全问题,也包括涉及其他方面安全的规范,例如,探火、灭火和防火,机电装置,救生设备如小艇和投放手段,无线电报和无线电话,航行安全,谷物及危险货物运输,以及核动力船相关等规范。A)正确B)错误答案:对解析:[判断题]54.AlargevalueoftheverticalprismaticcoefficientwillindicatebodysectionsofU-formwhilstasmallvalueofthiscoefficientwillbeassociatedwithV-shapedsections.较大的垂向棱形系数表示其横截面呈U形,而较小的垂向棱形系数与V形截面有关。A)正确B)错误答案:对解析:[判断题]55.Forwardvelocityisthereforeconfinedtoarelativelynarrowlayeradjacenttothehull.Thislayeriscalledthe?boundarylayer?.Thewidthofthelayeriscomparativelysmallatthebowoftheshipbutthickensingoingaft,aswillbeseenfromFigure8.1,whichshowsthefalloffinvelocityatvariouspositionsinthelength.因此前进速度仅限于船体附近相对很窄的一层,称作?边界层?。其宽度在船首相比较小,但往后会加厚,如图8.1所示。同时可以看到在船长各位置的速降。A)正确B)错误答案:对解析:[判断题]56.Ontheotherhand,itissaidtobeunstableifacoursedeviationbeginsorcontinuesevenintheabsenceofanexternalcause.另一方面,如果没有外力的情况下,船舶仍出现航向偏离或继续偏离,则称航向不稳定。A)正确B)错误答案:对解析:[判断题]57.Thesethreecasesillustratetheforcesandrelativepositionoftheirlinesofactioninthethreefundamentalstatesofequilibrium.以上三种情况阐明了平衡的三种基本状态下力及其所在直线的相对位置关系。A)正确B)错误答案:对解析:[判断题]58.Areferenceplaneisneededaboutmidlengthoftheshipand,notunnaturally,thetransverseplanemidwaybetweentheperpendicularsischosen.还需要一个关于船长中点的参考面,自然地,就选取为垂线间长中点处的横剖面。A)正确B)错误答案:对解析:[判断题]59.Legislationregardingthesafetyofshipsistheresponsibilityofthegovernmentofthecountryconcernedwithregisteringtheship.船舶登记国政府负责起草关于船舶安全的立法。A)正确B)错误答案:对解析:[判断题]60.Thesheercanvaryalongthelengthoftheshipandisusuallygreatestattheends.舷弧沿船长变化。一般在船首、船尾达到最大值。A)正确B)错误答案:对解析:[判断题]61.Theinfluenceofblockcoefficientontheshapeofthehullformisthatinshipswithhighvalueofthiscoefficientconsiderableparallelmiddleislikelytobefoundandtheslopesofthewaterlinesattheendsaresteep,whereaswithlowblockcoefficientsparallelmiddleisoftenquiteshortormaynotexistatallandtheslopesofthewaterlinesattheendswillbesmallalso.方形系数对船体形状的影响是:方形系数高的船舶具有相当长的平行舯体,且水线的两端倾斜较大,而方形系数低的船舶平行舯体一般较短,或者根本没有平行舯体,而且水线两端的倾斜也小。A)正确B)错误答案:对解析:[判断题]62.Structuresinvolvesselectionofmaterialofconstruction,structuralanalysisofglobalandlocalstrengthofthevessel,vibrationofthestructuralcomponentsandstructuralresponsesofthevesselduringmotionsinseaway.船舶结构包括建造材料的选择、船舶结构的整体和局部强度分析、船舶在航行运动时的结构部件振动和结构动力响应。A)正确B)错误答案:对解析:[判断题]63.Socalled'standard'sheerwasgivenbytheformulae:所谓的?标准?舷弧由下面公式给处:A)正确B)错误答案:对解析:[判断题]64.Notethattheseareallanglesandnotrates,whichareconsideredinlaterchapters.注意这些都是角度而不是比率,将在后面章节中讨论。A)正确B)错误答案:对解析:[判断题]65.SomeofthesesocietiesareBureauVeritas(France),DetNorskeVeritas(Norway),AmericanBureauofShipping(USA),GermanischerLloyd(Germany),RegistroItalianoNavale(Italy),andNipponKaijiKyokai(Japan).其中包括是BV(法国),DNV(挪威),ABS(美国),GL(德国),RIN(意大利),和NKK(日本)。A)正确B)错误答案:对解析:[判断题]66.In1968thefirstshipover300,000tonswasbuilt.Withtheirbulkandenormouscapacity(fourfootballfieldscanbeplacedendtoendononeoftheirdecks),theseshipsaredesignedandbuilttobeprofitmakers,enormouslylong,wide,anddeep,carryingthousandsoftonsofcrudeoilpervoyageattheleastcost.1968年,第一艘超过30万吨的船舶建成。为了盈利,体积庞大、容量巨大(甲板可容纳四个首尾相接的足球场)的船被设计建造出来,它们的长度、宽度、深度的尺寸都非常大,每次航行都是以最小的代价运输成千上万吨原油。A)正确B)错误答案:对解析:[判断题]67.Sheerforward(in)=0.2L(ft)+20首舷弧(英寸)=0.2L(英尺)+20A)正确B)错误答案:对解析:[判断题]68.Navalauxiliariesaremorecloselyrelatedtocommercialshipsinappearance,buttheirmissionmayinvolveoperatingwithwarships,whichrequirescompatibilityintermsofspeed,endurance,requiredpayload,andtheabilitytoconductreplenishmentoperationsduringpoorseaconditions.军用辅助船的外观与商船很像,但是它们的任务可能涉及到与战斗舰艇协同,这就要求辅助船具备与战斗舰艇相匹配的航速、续航力、有效载荷及在恶劣海况中为战舰进行补给的能力。A)正确B)错误答案:对解析:[判断题]69.Deletionofsheeralsotendstomaketheshipeasiertoconstruct,butontheotherhanditcouldbesaidthattheappearanceoftheshipsuffersinconsequence.取消舷弧还有利于船舶的建造。但从另一方面看,这样有损于船舶的外形美观。A)正确B)错误答案:对解析:[判断题]70.Theactualthicknessoftheboundarylayerisindeterminatebutthepointwheretheforwardvelocityhasfallentoabout1%ofwhatitwouldbeifthewaterwerefrictionlessisconsideredtobetheouterextremityoftheboundarylayer.边界层的实际厚度是不能确定的,但是如果水没有摩擦力时边界层水将随船前进�那么水的前进速度下降了1%,这一处就被认为是边界层的外沿。A)正确B)错误答案:对解析:[判断题]71.Aship?spreliminarydesignfurtherrefinesthemajorshipcharacteristicsaffectingcostandperformance.船舶初步设计将进一步完善影响船舶造价和性能的主要参数。A)正确B)错误答案:对解析:[判断题]72.allwhileconsideringtheshipaspartofaprofitabletransportation,industrial,orservicesystem.与此同时,将船舶作为盈利运输,工业或服务系统中的一分子,统筹考量。A)正确B)错误答案:对解析:[判断题]73.Inmodernshipshavinglargebulbousbowsthelengthoverall(L.O.A.)mayhavetobemeasuredtotheextremepointofthebulb.在具有大型球鼻首的现代船舶上,这个总长就需要量至球鼻首的最前端。A)正确B)错误答案:对解析:[判断题]74.TheoriginofclassificationisassociatedwiththenameLloyd'sRegisterofShipping,whichistheoldestsociety.船级的起源与劳埃德船级社的公司有关,它是最早的船级社。A)正确B)错误答案:对解析:[判断题]75.Theydescribethetestsandtrialsthatshallbeperformedsuccessfullyinorderthatthevesselwillbeconsideredacceptable其中会提到各种测试和实船海试应该顺利进行,以便该船能被认可交付。A)正确B)错误答案:对解析:[判断题]76.ThisempiricalprocessisofcoursebackedupbyresearchworkcarriedoutbytheSociety.Thereisalsocooperationwithotherresearchorganizations.这一经验流程当然会得到船级社的研究工作支持,它们也会与其他研究机构合作。A)正确B)错误答案:对解析:[判断题]77.Theretwoformulaeintermsofmetricunitswouldgive:这两个公式按照公制单位变成:A)正确B)错误答案:对解析:[判断题]78.InsomemodernshipsthereisaroundedgunwaleasshowninFigure3.2(b).在某些现代船上,具有圆弧舷边顶部,如图3.2所示、A)正确B)错误答案:对解析:[判断题]79.However,attemptstofindthenaturalfrequencyofarollingshipthroughanalysisarefarfromsimple,becausethecoefficientsofthefundamentalequationarethemselvesafunctionoffrequency.但是,由于基础方程的系数本身就是一个关于频率的函数,所以,要通过分析找出船舶横摇的固有频率远非易事。A)正确B)错误答案:对解析:[判断题]80.Forashipofconventionaltype,itisvirtuallyimpossibletooperateataspeed-to-lengthratio(speedinnauticalmilesperhour,dividedbythesquarerootofthewaterlinelengthinfeet)higherthanapproximately1.3.对常规船型实际上不可能以速长比超过1.3的速度航行(速度单位为海里/小时,除以水线长度的平方根,单位是英尺)。A)正确B)错误答案:对解析:[判断题]81.FromNewton'slawsofmotion,itisseenthatabodycanbeatrestormovingatconstantspeedonlyifthesumofallforcesandmomentsactingonthebodyisequaltozero.根据牛顿运动定律,我们知道只有作用于物体的合外力与力矩为零,物体才会保持静止或以恒定不变的速度保持运动。A)正确B)错误答案:对解析:[判断题]82.Fortankers,sizemushroomed,theincreasingdemandforpetroleumandotherrawmaterialsbytheindustrializednationsoftheworldhasnecessitatedeverlargertankersandbulkcarrierstomeettheenormousdemandatacceptablecosts.比如油轮,其尺寸正快速增长,这是由于工业化国家对石油和其他原材料的需求急剧增加,迫使各国需要以可接受的花费建造更大的油轮和散货船来满足其需求。A)正确B)错误答案:对解析:[判断题]83.Ifthepointissharpenoughitissometimesbettertakenattheaftercutuporataplaceinthevicinitywherethereisadiscontinuityintheship'sshape.若该点很凸出,那么最好取在船艉切断处或临近船体形状间断处。A)正确B)错误答案:对解析:[判断题]84.Thethinlayeroffluidactuallyincontactwiththeimmersedsurfaceiscarriedalongwithitbutbecauseofviscosityashearforceisgeneratedwhichcommunicatessomevelocitytotheadjacentlayer.和浸湿表面实际接触的一薄层流体被表面夹带,但因为粘性而产生了剪力,剪力将一部分速度传给临近的薄层。A)正确B)错误答案:对解析:[判断题]85.DataisregularlysharedininternationalconferencessponsoredbyRINA,SocietyofNavalArchitectsandMarineEngineers(SNAME)andothers.所得数据会定期在由英国皇家造船工程师学会、美国船舶与海洋工程学会等主办的国际会议上共享。A)正确B)错误答案:对解析:[判断题]86.Thedesignwaterplaneisaplaneperpendiculartothemiddlelineplane,chosenasaplaneofreferenceatornearthehorizontal;itmayormaynotbeparalleltothekeel.设计水线面是一个垂直于中线面的平面,选作水平面或水平面附近的参考平面。;它可能与龙骨平行,也可能不平行。A)正确B)错误答案:对解析:[判断题]87.Itistheforceofgravitythatmakestheshipslidedowntheslipways.正是地球引力使船舶沿滑道下滑。A)正确B)错误答案:对解析:[判断题]88.Themidshipsectioncoefficient,CM,istheratioofthemidshipsectionareatotheareaofarectanglewhosesidesareequaltothedraughtandthebreadthextremeamidships.Itsvalueusuallyexceeds0.85forshipsotherthanyachts.中横剖面系数是中横剖面面积与一个边长分别等于吃水和船中最大船宽的长方形的面积的比值。除了快艇,一般船舶的该系数超过0.85。A)正确B)错误答案:对解析:[判断题]89.Theexploitationofseafloorresource,primarilyoil,gasandhardminerals,requiresseveralphasesofunderseaoperations.开采海底资源,主要是油、气和各种固体矿产,需要经历几个水下工作节段。A)正确B)错误答案:对解析:[判断题]90.Severalmethodshavealsobeendevelopedforthemathematicalfairingofshipformsandlinkingthisupwithproductionprocesses.Discussionofthesetopics,however,isoutsidethescopeofthiswork.已有多种方法用于船型数学光顺,并与生产过程结合起来,然而这一主题的讨论,不是本书的范围。A)正确B)错误答案:对解析:[判断题]91.Aprincipleofphysicsstatesthatanymovingobjectthatcanproduceanunsymmetricalflowpatterngenerat