輪機英語真題47期甲類三管輪

2021年第1期海船船員適任統考試題（總第47期）

一、單項選擇題

1.

Theengineisusedforalternatorsandsometimesformain

propulsionwithagearbo_provideapropellerofbetween90to120rpm.

A.four-stroke

B.

Two-stroke

C.

Slowspeed

D.reversible

2.Theabbreviation〃MIP〃standfor____.

A.

middleindicatingpressure

B.

meanindicatedpressure

C.

Meanindicatedpitch

D.

Middleindicatedpower

3.Thecetanenumberofadieselfueloilindicatesits.

A.Viscosity

B.

Acidcontent

C.

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Heatingvalue

D.ignitionquality

4.Inatwo-strokeenginethecamshaftrotatesat__theengine

rotationalspeed.

A.Half

B.twice

C.

Thesamespeedas

D.

Fourtimes

5.Adieselengineissimilartoagasolineenginee_ceptthatthe

formerhasno_____.

A.Cross-head

B.

Cylinder

C.

Connectingrod

D.sparkplug

6.Itiseasiertoreplaceadrycylinderlinerthanawetone

because.

A.Ofthethinwallthickness

B.honingmakesiteasiertomaintainthedesiredoilfilm

C.

Watersealsarenotrequired

D.

Itfitsmorelooselyduetoadecreaseinheattransferthroughthe

positewall

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7.Amainbearingconsistsoftwoshellswhicharesecuredbymeans

ofstudsand_____.

A.Tierods

B.

Throughbolts

C.

Leadwires

D.

Bearingcaps

8.Howeverfastorslowthebustionrate,itisstillabetween

carbon,hydrogen,sulphando_ygenthatreleasesheat.

A.Physicaldeformation

B.

Statee_change

C.

Chemicalreaction

D.

Coalescence

9.Duringthefuelinjectionperiod,fuelpressuremuste_ceed

cylindergaspressureto.

A.Ensureperationanddistributionofthefuelinthebustion

chamber

B.Ensuretheneedlevalveisflushedcleanduringeachinjection

C.Preventbustiongasblowbackintotheopenneedlevalve

D.Preventreflectedpressurewaveswhentheneedlevalvecloses

10.Inadieselenginelubeoilsystem,whichofthefollogparts

shouldbelubricatedfirst?

A.Camshaftbearing

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B.

Mainbearing

C.

Pistoncrowns

D.

Cylinderwalls

11.Inadieselengineclosedfreshwatercoolingsystem,theamount

ofcoolantflogthroughtheheate_changeriscontrolledbythe.

A.Suctionpressureregulator

B.

Thermostaticbypassvalve

C.

Seawatertemperature

D.

Waterlevelinthee_pansiontank

12.whichofthedieselengineponentlistedincreasesairdensity

andhelpstoimproveengineoperatingefficiency?

A.impeller

B.

Airbottle

C.

Aircooler

D.

E_haustdiffuser

13.

alargetwo-stroke/cycledirectreversingdieselengineistobe

reversed.

Priortotheadmissionofstartingairyoumust.

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A.

lineuptheengineforrestartingwithlightdieseloil

B.

Repositionthefuelinjectioncam

C.

Changetheintakeande_haustvalvecampositions

D.

Placethestartingcamintheintermediateposition

14.Whichofthelistedgovernorcharacteristicswillgreatlyaffect

theloadsharing

relationshipbetweenparalleleddieselgenerators?

A.Sensitivity

B.

Power

C.

Speeddroop

D.

pensation

15.Thermocouplepyrometersareusedonlarge,mainpropulsion

dieselenginesto

indicatethetemperatureofthe.

A.Coolingwaterleavingeachcylinder

B.

Fueloilenteringtheinjector

C.

E_haustgasesatvariouslocations

D.

Lubeoilatthebearingsupplies

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16.Afterstartingadieselengine,whichofthelistedoperating

conditionsshouldbe

checkedfirst?

A.Airbo_pressure

B.

Lubeoilpressure

C.

E_hausttemperatures

D.raw

waterpressure

17.Toshutdownadieselengineafterite_ceedsthesetma_imum

speed,whichtypeof

devicelistedshouldbeused?

A.Speedlimitinggovernor

B.

Over-speedgovernor

C.

Over-speedtrip

D.

Over-speedrelay

18.Thetreatmentofthefueloilsinvolvesstorage,heating,

filteringand_____.

A.Centrifuging

B.

Pressurizing

C.

Atomization

D.

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Igniting

19.Apropeller,inordertooperateefficiently,mustrotateata

relative!yspeed.

A.High

B.

Low

C.

Fast

D.lowly

doc/87379f7131b765ce0508142b.tentheatchangesthe___ofwater.

A.physicalstate

B.

Temperature

C.

Atmosphericpressure

D.

Sensible

pressure

21.Theprimaryfunctionofaflamesafeguardsystem,asusedonan

automaticallyfired

au_iliaryboiler,istoprevent.

A.Accidentaldryfiringandoverpressure

B.

Uncontrolledfiresinthefurnace

C.

E_plosionsintheboilerfurnace

D.

Overheatingofthepressureparts

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22.Impropermaintenanceofthefueloilburnersinanautomatically

firedau_iliary

boilercouldresultin_______.

A.

increasedfuelconsumption

B.

Increasedfeed-waterconsumption

C.

Fuelpumpfailure

D.

bustioncontrolsystemfailure

23.Burnerignitionfailureinanautomaticallyfiredau_iliary

boilerwouldbecaused

by.

A.Aburnedoutsolenoidintheoilsupplyvalve

B.

Hightemperaturee_cessair

C.

Incorrectlysettingthehot-welldumpvalve

D.

Anincorrectlypositionedburner

snubberrelay

24.ifthefeedpumpforanau_iliaryboilerfailstodeliverthe

feedwatertotheboiler,

thecausemaybe______.

A.Highpressureintheboiler

B.

Abnormallyhighfeed-water

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temperature

C.

Abnormallyhighboilerwatertemperature

D.

demande_ceedingfeed

pumpcapacity

25.Gearpumpsareofpositivedisplacementtypepumpsbecausethey

dischargeanear

constantamountofliquidpressure.

A.Dependingon

B.

Inrelativeto

C.

Regardlessof

D.becauseof

26.Aspurgearpumpshouldbeoperatedwiththedischarge

valves.

A.Slightlyopened

B.

Throttled

C.

Fullyopened

D.

Halfwayopened

27.Anindependentbilgesuctionisrequiredfor.

A.Ballasttanks

B.

Sludgetanks

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c.

Machineryspacebilges

D.

Cargohold

bilges

28.Tothoroughlypumpoutthebilgesusingahorizontallymounted

centrifugalpump,

the.

1

A.

Pumpmustalwaysbeprimed

B.

Volutemustimpartaradialandrotarymotionofthewater

C.

Suctionsideconnectionmustguidetheliquidtothelanternrings

D.

Stuffingbo_shouldnotbeallowedanywaterleakage

29.Aninadequatereciprocatingbilgepumpdischargeismostoften

causedby______.

A.Defectivesafetyvalves

B.

Cloggedsuctionstrainers

C.

Scarredcylinderwalls

D.

Cloggeddrainvalves

30.Inapressionrefrigerationplant,thehot,highpressure

refrigerantgasiscooledbytheseawaterandbeesliquidinthe

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doc/87379f7131b765ce0508142b.pressor

B.

Condenser

C.

Throttlevalve

D.

Evaporator

31.The____onlyallowsforadjustmentoftemperatureineachroom

bytheoccupantmanuallycontrollingtheairvolumeadmitted.

A.Centralairconditioningsystem

B.

Highvelocitysystem

C.

Lowvelocitysystem

D.

Singleductsystem

32_.Theopeningofthehumidifier,svalveofair-conditionershould

be,whenthecircumstancetemperatureisraisedtoabove5~8℃in

theter.

A.Decreased

B.

Increased

C.

Fi_ed

D.

Closed

33.Undernormalconditions.

Thequantityofaircirculationbeeslessandless.

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Whatisthereason?

A.Dirtydeliveryducts

B.

Toomuchrefrigerant

C.

Thefoulingfilters

D.

Hightemperatureoutside

34.Whenbilgewaterisheatedinaholdingtank,whichoneofthe

follogstatementisnotaccurate?

A.Therelativehightemperaturefacilitatesprimarygravity

separation

B.Mostoftheoilandorganicsolventsareraisedtothelayer.

C.Therelativehighthetemperatureis,themoretheoilwillbe

collected

D.Thenormalhightemperaturehaslittleuseontheseparationof

emulsifiedoil

35.

Ifseparatingeffectoftheoilywaterseparatorisnotgood,we

canimproveitby.

A.Flushingseparatorwithcoldwater

B.

increasingbilgewatersupplyflow

C.

Heatoilywaterproperly

D.

Openingmanualoildischargevalve

36.Whichisthepollutionpreventionequipment?

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A.Boosterpump

B.

Evaporator

C.

Incinerator

D.

Cooler

37.Whendoesau_iliaryburnerofrotarynozzletypeincineratorput

intouse?I、whenignitingII>thewasteoilfordealingwithistoo

muchIII>beforespingincinerator

A.

I+11

B.

I+III

C.

H+III

D.

I+II+III

38.

whenanaerobicbacteriaconvertthesewagetoaninert

sludge,,

A.

Noo_ygenisneeded

B.

0_ygenisnecessary

C.

0_ygenisgivenoff

D.

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nogasisproduced

39.ForaI.0.purifier,ifthebackpressureoftheoiloutletis

toohigh,theinterfacebetweenoilandwaterinthebowlwill______.

A.Beinterrupted

B.

Movedownwards

C.

Moveoutwards

D.retainoriginalposition

40.Whenseparatingthelubeoilwithoutadditive,itisusually

workingwithhotwater;theaimistoremovefromit.

A.Acid

B.

Oilsludge

C.

Mechanicalimpurity

D.

Salinity

41.Ifthebowlofadisktypecentrifugalpurifierwhenoperatedas

aseparatorisnotprimedthe.

A.Oilhasatendencytoemulsifyinthebowl

B.Purifierwillactasaclarifieratthedischargering

C.Oilwillbelostthroughthewaterdischargeports

D.Oilsolidswillbedepositedonlyattheintermediatedisk

42.Tubeleaksinthedistillatecoolerofatwostageflash

evaporatorwillresult

in.

A.Lossofsecondstagevacuum

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B.

Contaminationofthedistillate

C.

Lowerfeedmfettemperature

D.

Contaminationofthesecondstage

condenser

43.Smalldropletsofwaterentrainedintheflashedvaporproduced

inaflash-type

evaporator,areremovedbythe.

A.Spraypipes

B.

Demisters

C.

Condensers

D.

Splashbaffles

44.Overflowvalveusuallybeusedto.

A.Controlthefluidflowthroughit

B.Preventthepressurebeforeoverflowvalveoverthespecified

value

C.Makethepressureafteroverflowvalvesteady

D.Controlthedirectionofoilflow

45.Amongthebasiccategoriesofequipment,whichofthefollogare

usedto

convertmechanicalintohydraulicenergy?

A.Thehydraulicpumps

B.

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Valves

C.

Hydrauliccylinders

D.

Hydraulicmotors

46.Cargohandlingunitisratedaccordingtothe____tobelifted.

A.Cargocrane

B.

Jib

C.

Safeworkingload

D.

Oilpressure

47.Thepartoftheanchordlassthatengagestheanchorchainfor

liftingiscalled

the______.

A.Warpinghead

B.

Fairlead

C.

Wildcat

D.

Capstan

48.Inautomatic,thechmaybeoverhauledandwireispaid

offthebarrelata

Pre-determinedma_imumtension.

A.Cranes

B.

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dlass

C.

Capstans

D.

Mooringches

49.Themajorsourceofchemicalcontaminantsinhydraulicfluidis

A.Microscopicsteelshavings

B.

Abrasivewaste

C.

Anti-o_idantpounds

D.

0_idationby-products

50.Beforedoinganyworkonahydraulicsystemequippedwith

accumulators,you

should.

A.Draintheaccumulatorsandpurgewitho_ygen

B.Bleedoffallstoredenergyfromtheaccumulatorspletely

C.Chargetheaccumulatorstopreventsystemenergyloss

D.Pumpthehydraulicfluidintotheaccumulatorstopreventfluid

loss

51.Onefactorthatdeterminesthefrequencyofanalternatoristhe

A.Numberofturnsofwireinthearmaturecoil

B.

Numberofmagicpoles

C.

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Strengthofthemagsused

D.

Outputvoltage

52.Thefrequencyoutputofanoperatingalternatoriscontrolledb

the.

A.Relativespeedoftherotorpoles

B.

Numberofturnsofwireinthearmature

coil

C.

Strengthofthemagsused

D.

Outputvoltages

53.PriortoclosingthebreakerwhenparallelingtwoAC

generators,.

The

remendedpracticeistohavethefrequencyoftheiningmachine

A.Slightlylessthanthelinefrequency

B.

Thesameasthelinefrequency

C.

Slightlygreaterthanthelinefrequency

D.

Havenothingtodowiththeline

frequency

54.IftwoA.C.

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Generatorsaretobeoperatedinparallel,theloadisdistributed

evenly

2

by.

A.Mensofrheostat

B.

Abalancecoil

C.

Adjustingthegovernorsetting

D.

Changinge_citation

55.Thefirstrequirementforlogicaltroubleshootingofantsystem

istheabilityto______.

A.Collectallavailabledataonacasualty

B.

Recognizenormaloperation

C.

Identifytheprobablecauseofasymptom

D.

Isolatethefaultyponent

56.is(are)notpowersuppliedbymainswitchboarddirectly.

A.Steeringgearanddlass

B.

Navigationlightandradiopowerpanel

C.

Navigationdevicepowerbo_

D.

Dailyfreshwaterpump

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57.Theemergencygeneratororemergencybatteryisconnected

to______onmostlargeships.

A.Distributionboards

B.

Sectionboards

C.

Emergencyswitchboards

D.

Mainswitchboards

58.connectorsholdbestifawireisaccidentallypulledora

connectionbeesloose.

A.Ringtype

B.

Forktype

C.

Spadetype

D.

“Pushon,pulloff"type

59.Theprimaryfunctionofanelectricmotoristo_____.

A.Developtorque

B.

Generatehighvoltages

C.

Produceamagicfield

D.

Generatehighelectricalresistance

60.pusesplacedinserieswithathermaltrip-typecircuitbreaker

areusedfor.

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A.Time-delayprotection

B.

Short-circuitprotection

C.

Shortdurationsurgeprotectionsurgeprotection

D.

Sustainedoverloadprotection

61.Shorepowermustbe______duringdockrepair.

A.Disconnected

B.

Switchedoff

C.

Cutoff

D.

Connected

62.Theoperatorofelectricalmotorsshouldkeepaconstantcheck

ontheloadstheycarrybecause.

A.Lowloadsnecessitatefrequentinsulationcleaning

B.Eceedingnameplatevaluesshortensusefullife

C.Energyiswastediffullloadingisnotutilized

D.Powerfactorcorrectionmethodsareloaddependent

63.Beforeamarinedieselengineisstartedthecylindersand

pistonsmustbe.

A.Cooledtoropriatetemperature

B.Warmedupgraduallytoropriatetemperature

C.Openedupandrenewed

D.Groundandpolished

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64.isaprecautionwhichcontributestoavoidingtrouble

undernormaloperatingconditions.

A.Constantinspection

B.

Keepingconstantload

C.

Remainingconstanttemperature

D.

Varyingspeed

65.Duringshipmanoeuvering,whenthedieselissped,whichofthe

follogitemsiswrong?

A.Keepallsystemsrunningnormally

B.Mainengineisavailableatanymoment

C.Shutoffthestartingairbottleoutletvalve

D.Payattentiontothechangesofthesystemparameters

66.Atankwhichhasbeensealedforalongperiodoftimecanbe

dangerousbecause_____.

A.Steelsurfacesconsumeo_ygenbyrusting

B.Sealedtanksusuallyformavacuum

C.Moisturecondensesinthetank,displacingtheo_ygen

D.Mosttankcoatingsgiveoffpoisonousvaporsinthepresenceof

moisture

67.Theclassoffireonwhichablanketingeffectisessentialto

e_tinguishthefireis

A.Class〃A〃

B.

Class〃B〃

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c.

ClassZ，C，Z

D.

Class〃D〃

68.Firesinescapingflammablegasarequicklybroughtunder

controlby_______.

A.Spingtheflowofgas

B.

Reducingthechemicalchainreaction

C.

Increasingtheo_ygensupply

D.

Coolingbelowtheautoignitionpoint

69.Whichofthefollogstatementsistrueconcerningcarbondio_ide

whenusedasa

firee_tinguishingagent?

A.Carbondio_ideiscorrosivewhene_posedtofire

B.Carbondio_ideshouldbeliedslowlytoalargeengineroomfire

C.Itstotalcoolingeffectisfargreaterthanwater

D.Itssmotheringeffectise_cellentforclassBfires

70.Whileonwatchintheengineroom.

Youhearacontinuoussoundingofthegeneral

alarm.

Whichofthefollogactionsshouldyoutake?

A.Makeanentryentheofficiallogbook

B.Openthemastercontrolvalvesonthefi_edC02system.

C.Startthefirepumpandcheckdischargepressure

D.Secureau_iliarycondenseroverboarddischarge

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71.Todeterminethatapartmentcontainssufficiento_ygento

sustainlife,you

shouldusea/an______.

A.E_plosimeter

B.

0_ygenindicator

C.

Freshairindicator

D.

Emergencyescapebreathingdevece

72.Iftheoverflowtankhigh-levelalarmsoundswhilethefueloil

tanksarebeing

pedoff.

Theengineershould.

A.Closethestaticlegfillingvalve

B.

Closetheoverflowtankfillingvalve

C.

Reducethefueloilpumpingrate

D.

Sthefueloilpumpingoperation

73.Thetoolsisusedinprecisionworktosmoothorenlarge

aslightly

undersizedhole.

A.Roundout

B.

Roundfile

C.

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Reamer

D.

Holedriller

74.Duringthedockrepair,eachseavalveseatshouldbechecked

andratifiedby

beforereassembled.

A.Chiefengineer

B.

Surveyor

C.

Theengineer

D.thetechniquepersonnelof

theshipyard

75.theadditionalmarkintheclassificationcertificatefor

machinerymeans

propulsionaratusisremotelycontrolledonthenavigatingbridge

controlstation,andengineassemblycontrolstationisunmanned

periodically.

A.BRC

B.

MCC

C.

AUT-0

D.

AUT-1

76.Theoilrecordbook,asapartoftheship,sofficiallogbook,

shallbekeptonboard

andpreservedforaperiodof.

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A.

3yearsaftermakingthefirstentry

B.

2yearsafterthelastentry

C.

3monthsafterlastentry

D.

3yearsafterthelastentry

77.Thevalidperiodoftheinternationaloilpollutionprevention

certificateonboard

isn〃tmorethan.

A.Oneyear

B.

Twoyears

C.

Fouryears

D.

Fiveyears

78.DuringthePSCinspectionundertheprovisionsofSOLAS74.

Whichonemaynot

beregardedascleargroundsforships"detainment?

3

A.

failureoftheproperoperationofemergencygenerator

B.

Insulationofpipingincludinge_haustpipesinengineroom

contaminatedbyoil

C.

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Improperoperationofbilgepumpingarrangements

D.

Damagedsanitarypump

79.^insufficiencyofmanningorinsufficiencyofcertificationof

seafarers"isanidentificationofa.

A.Substandardship

B.

Standardship

C.

Over-standardship

D.

Referenceship

80.STCW78/95conventionshalllytoseafarersonboard

seagoingshipsentitledtoflytheflagofaparty.

A.Served

B.

Serving

C.

Surveyed

D.

Surveying

81.Allengineerofficersandengineroomratingsshallbeawareof

theseriouseffectsofoperationaloraccidentalpollutionofthemarine

environmentandshalltakeallpossibletopreventsuchpollution,

particularlywithintheframeworkofrelevantinternationalandport

regulations

82.Whentheordergivenbybridgemayhavebadresults,theduty

engineershould.

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doc/87379f7131b765ce0508142b.rmthecaptainforafurther

consideration

doc/87379f7131b765ce0508142b.rmthecaptain,andnotperformit

C.StheM/Bimmediately,andtheninformthechiefengineer

D.StheM/Bimmediately,andtheninformthecaptain

83.Ifanoilspilloccursondeck,youshould_____.

A.Covertheareawithfoam

B.Covertheareawithabsorbentmaterial

C.

Washdownimmediatelywithafirehose

D.

Washdownimmediatelywithanoildispersingsolvent

84.Accordingtotheinternationalregulationsconcerningthe

preventionofpollutionofseaareasfromships,thedisposalintothe

seaofallplasticsis.

A.Wele

B.

Admittedinsomespecialseaareas

C.

Prohibited

D.

Acceptable

85.ThemainobjectiveoftheSOLASconventionis.

A.Toprovideasolutionofloweringpollutionatsea

B.Tospecifyminimumstandardsforthemembersposingthewatchat

sea

C.Tospecifyminimumstandardsforshipsconsideringtheirsafety

D.Totellthepanyhowtogoaboutrunningtheirbusiness

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86.WhichofthefollogaboutISMcodeisnotright?

A.Itaimstoensuresafetyatsea

B.Itaimstoavoiddamagetotheenvironment

C.Itaimstopreventhumaninjuryorlossoflife

D.Ifaimstoprovideamethodtorunapany

87.Theshipsecurityassessmentisanessentialandintegralpart

oftheprocessofdevelopingandupdating.

A.Theshipsecurityplan

B.

Thepanysecurityplan

C.

Theportsecurityplan

D.

Thenationalsecurityplan

88.Inordertolimittheintroductionofalienspeciesbyship,

wasadoptedon13Feb,20_4attheIMO.

A.RevisedMarpolanne_I

B.

Revisedmarpolanne_II

C.

Internationalconventionforthecontrolandmanagementofships”

ballastwaterandsediments

D.

ISPScode

二、關聯題（關聯題題干下有4個小題，每小題4個選項）

第一組：

StatingAirSystem

Theengineisstartedwithpressedairofma_30bar.

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Minimumpressurerequiredis15bar.

ApressuretransmitterPT301mountedonthestartingairline

beforethemainstartingvalvehasanindicatorintheinstrumentpanel.

Thesupplylinefromthestaringairbottlesisprovidedwithanon

returnvalveandadrainvalve.

Thesolenoidvalveiselectrical(remotecontrol)ormanual(onthe

engine)operatedandsendafteractivationapilotairsignaltothe

mainstartingairvalve.

Interruptionofthecontrolairdosesthemainstartingairvalve.

Afterthemainstartingairvalveisactivatedtheairflows

throughtheflamearresterstothestartingairvalvesinthecylinder

heads.

Thestartingairdistributorcontrolsthetimingofopeningand

closingofthestartingairvalves.

Onthemomentthemainstaringairvalveisoperatedalsothe

governorboosterisenergized.

Themainstartingairlineisprovidedofasafetyvalve.

Interlockvalveisasafetydevicetoavoidanenginestartwith

engagedturninggear.

89.Astheengineisstartedwithpressedair,thecorrectsequence

ofthefollog

devicesbeingactivatedis______.1.solenoidvalve2.

Startingairvalve3.

Startingairdistributor4.

Mainstartingairvalve.

doc/87379f7131b765ce050814