輪機英語關(guān)聯(lián)題(二、三管輪)閱讀理解核心題

關(guān)聯(lián)題(132?)

Passage1

Becausetherearemanyfueloiltanksonaship,usuallyaseniorengineerwillbeattheengineroomto

operatethefillingvalves.Therewillbeanothergroupofpeopleondecktotakesoundingsofthetanksas

theoilfillsup.Theideaistofillupthetanksinasystematicwaysothatoilwillnotoverflowandcause

pollutiontotheenvironment.

Inpractice,thiscansometimesbequitetrickyandallthepersonnelinvolvedinbunkeringneedtobe

extravigilant.

Inwintertime,theoilbecomesthick,andthelevelshownonthesoundingtapescanbemistakenly

read.Whenbunkeringisdoneatthesametimeascargoloadingandunloading,theshiptendstoheave

fromonesidetoanother.Thiswillcauseerrorinreadingoftheoillevels.Miscalculationoftanklevels,

especiallywhenusingtheullagemethodmayleadtowrongreadings.Valvesattheengineroomcouldbe

wronglyoperated,duetowronginformationbeingrelayedfromthedeck.Sometimesairbubblestrappedin

thesoundingpipescanindicateadifferentoillevelfromtheactual.Thesuppliermaybepumpingtoofast.

Thelistgoeson

1.Aseniorengineerisanengineer.

A.whoisolderthanothersB.withahighrank

C.inchargeortheenginedepartmentD.whoseseaserviceislongerthanothers

2.Theword“tricky“inthesecondparagraphmeans"

A.deceptiveB.alertC.difficultD.clever

3.The“wronginformation^^inthelastparagraphrefersto.

A.wrongvaluesofoilthickness

B.wrongfiguresofcargoloadedordischarged

C.wrongtankstobesounded

D.wrongreadingsoftanklevels

4.Thelastsentence,t4thelistgoeson...^^meansthat.

A.thereareotheritemsonthesafetychecklist.

B.Acalibrationlistshouldbeusedforullagereadings

C.thereareotherdifficultiesclaimingadditionalwatchfulness

D.Thesuppliermaybepumpingsofastthattheshipislistingcontinuously

BCDD

Passage2

Circuitbreakersmustbecapableofmakinganbreakingundernormalconditionsandalsoabnormal

conditionssuchasshortcircuit.Asthecircuitbreakermustbeabletowithstandclosingontoafault

conditionswithoutsustainingdamage,itisofheavyconstruction.Fittedwithanovercurrentreleaseand

overloadswithtimelags,acircuitbreakercanbeusedasfollows:tocontroltheoutputofagenerator,asa

directon-linestarterandcontroloutgoingfeedercircuits.

Onmodernswitchboards,“drawout”circuitbreakersmaybefitted.Intheopenpositionthewhole

circuitbreakercanbewoundclearofthebusbars,thusfullinspectionandmaintenancecanbeachieved

withoutthenecessityofde-energizingthebusbars.

The“plugin“contactsjoiningthecircuitbreakertothebusbarsarenotcapableoftakingbeforeany

attemptismadetowithdrawit.Amechanicalinterlockisfittedarrangedtotripthecircuitbreakerbefore

thewindinghandlecanbeinserted.

Thebreakeralsohasamidposition.Inthispositionthecontrolcircuitsarestillconnectedwiththebus

barconnectionisolated.Theelectricaloperationofthebreakercanthenbetested.

Circuitbreakersarenormallyfittedwithundervoltageprotectionandtrippingisaccomplishedby

shorting,whichreleasesthelatchinginmechanism.Theno-voltcoilmayalsobeopencircuitedbya

reversepowerrelayandanoverloadtripfittedwithatimedelay.

1.Acircuitbreakercanbeusedasfollowsexcept.

A.tocontroloutgoingfeedercircuitsB.toactasadirectonlinestarter

C.totakethebreakingloadonlineD.tocontroltheoutputofagenerator

2.A"drawout"circuitbreakerreferstoacircuitbreaker.

A.whichcanbemadeclearofthebusbarsbyusingawindinghandle

B.whichcanbemadeclearofthebusbarsbypluggingincontacts

C.whosetestcanbecarriedoutwiththecontrolcircuitstillconnected

D.whosetestcanbecarriedoutwiththebusbarconnectionisolated

3.Amechanicalinterlockisfitted.

A.totakethebreakingloadwhenthecircuitbreakerisbeingwithdrawn

B.toputthecircuitbreaker,beforebeingwithdrawn,intheopenposition

C.toputthecircuitbreaker,beforebeingwithdrawn,inthemidposition

D.totakethebreakingloadwhenthecontactsjointhecircuitbreakertothebusbars

4.Accordingtothispassage,theelectricaloperationofthiskindofcircuitbreakercanbetestedwhen

A.thecontrolcircuitsareconnectedB.thebusbarconnectionisisolated

C.eitherAorBD.bothAandB

CABD

Passage3

Theoperationofparallelingtwoalternatorsrequiresthevoltagestobeequalandalsoinphase.The

alternatingcurrentoutputofanymachineisalwayschanging,sofortwomachinestooperatetogethertheir

voltagesmustbechangingatthesamerateorfrequency,andmustbereachingtheirmaximum(orany

othervalue)together.Theyarethensaidtobe“inphase".Useisnowadaysmadeofasynchroscopewhen

parallelingtwoa.c.machines.Thesynchroscopehastwowindingswhichareconnectedonetoeachsideof

theparallelingswitch.Apointeroffreetorotateandismovedbythemagneticeffectofthetwowindings.

Whenthetwovoltagesuppliesareinphasethepointerisstationaryinthe12o'clockpotion.Ifthepointer

isrotatingthenafrequencydifferenceexistsandthedialismarkedforclockwiserotationFASTand

anti-clockwiserotationSLOW,thereferencebeingtotheincomingmachinefrequency.

Toparallelanincomingmachinetoarunningmachinethereforeitisnecessarytoensurefirstlythat

bothvoltagesareequal.Voltmetersareprovidedforthispurpose.Secondlythefrequenciesmustbebrought

intophase.InpracticethesynchroscopeusuallymovesslowlyintheFASTdirectionandtheparalleling

switchisclosedasthepointerreachedthe11o'clockposition.Thisresultsintheincomingmachine

immediatelyacceptingasmallamountofload.

Asetofthreelampsmaybeprovidedtoenablesynchronizing.Thesequencemethodoflamp

connectionhasakeylampconnectedacrossonephasewithtwootherlampscrossconnectedovertheother

phases.Ifthefrequenciesofthemachinesaredifferentthelampswillbrightenanddarkeninrotation,

dependingupontheincomingfrequencybeingFASTorSLOW.Thecorrectmomentforsynchronizingis

whenthekeylampisdarkandtheothertwoareequallybright.

1.Whatdeviceisusedtoparalleltwoalternatorsnowadays?

A.Apointer.B.Twowindings

C.AsynchroscopeD.Twosynchronizinglamps

2.Whentwoalternatorsaresaidtobe“inphase",.

A.theircurrentoutputsarechanging

B.theirvoltagesareachangingatthesamerate

C.theyareconnectedonetoeachsideoftheparallelingswitch

D.theyhavethesamemaximumvoltage

3.Inpractice,theparallelingswitchisclosedasthesynchroscopepointerreachesthe11o'clockposition

whileitismoving.

A.intheFASTsectionB.intheSLOWsection

C.towardstheFASTdirectionD.towardstheSLOWdirection

4.Thecorrectmomentforsynchronizingiswhen.

A.threelampsareequallybright

B.threelampsdarkeninrotation

C.thekeylampisbrightandtheothertwolampsaredark

D.thekeylampisdarkandtheothertwolampsareequallybright

CBCD

Passage4

Olderloopscavengedenginesmayhaveasingleinjectormountedcentrallyinthecylinderhead.

Becausetheexhaustvalveisinthecenterofthecylinderheadonmodemuniflowscavengedenginesthe

fuelvalves(2or3)arearrangedaroundtheperipheryofthehead.

Thepressureatwhichtheinjectoroperatescanbeadjustedbyadjustingtheloadingonthespring.The

pressureatwhichtheinjectorsoperatevarydependingontheengine,butcanbeashighas540bar.

Someinjectorshaveinternalcoolingpassagesinthemextendingintothenozzlethroughwhich

coolingwateriscirculated.Thisistopreventoverheatingandburningofthenozzletip.

Injectorsonmodernenginesdonothaveinternalcoolingpassages.Theyarecooledbyacombination

oftheintensiveborecoolinginthecylinderheadbeingclosetothevalvepocketsandbythefuelwhichis

re-circulatedthroughtheinjectorwhenthefollowerisonthebaseofthecamorwhentheengineis

stopped.

Aswellascoolingtheinjector,re-circulatingthefuelwhentheengineisstoppedkeepsthefuelatthe

correctviscosityforinjectionbypreventingitfromcoolingdown.

Fuelinjectorsmustbekeptingoodconditiontomaintainoptimumefficiency,andtoprevent

conditionsarisingwhichcouldleadtodamagewithinthecylinder.Injectorsshouldbechangedinlinewith

manufacturers'recommendations,overhauledandtested.Springscanweakenwithrepeatedoperation

leadingtotheinjectoropeningatalowerpressurethandesigned.Theneedlevalveandseatcanwearwhich

togetherwithwornnozzleholeswillleadtoincorrectatomizationanddribbling.

1.Modernuniflowscavengedengineshave.

A.asingleinjectormountedinthecenterofthecylinderhead

B.severalinjectorsmountedaroundtheexternalboundaryofthecylinderhead

C.asingleinjectormountedattheexternalboundaryofcylinderhead

D.severalinjectorsmountedinthecenterofthecylinderhead

2.Coolingwateriscirculatedthroughinsomeinjectors.

A.thenozzleB.thenozzletipC.theinternalpassagesD.thefuelre-circulated

3.Re-circulatingthefuelwhentheengineisstoppedcan.

A.keepthefuelatthecorrectviscosityB.cooltheinjector

C.bothAandBD.neitherAnorB

4.Springsinfuelinjectorswillbecomenotstrongenoughtoworkbecause.

A.theiiijectoropensatalowerpressurethandesigned

B.theneedlevalveandseatwearout

C.thenozzleholeswearout

D.thespringsoperaterepeatedly

BCCD

Passage5

Theonlyattentionthatheatexchangershouldrequireistoensurethattheheattransfersurfacesremain

substantiallycleanandtheflowpassagesgenerallyclearofobstruction.Indicationthatunduefoulingis

occurringisgivenbyaprogressiveincreaseinthetemperaturedifferencebetweenthetwofluids,overa

periodoftime,usuallyaccompaniedbyanoticeablerisempressurelossatagivenflow.

Foulingonthesea-watersideisthemostusualcauseofdeteriorationmperformance.Themethodof

cleaningthesea-watersidesurfacesdependsonthetypeofheatexchanger.Withshell-and-tubeheat

exchangers,theremovaloftheheadercoversor,inthecaseofthesmallerheatexchangers,theheaders

themselves,willprovideaccesstothetubes.Obstructions,dirt,scaleetc.,canthenberemoved,usingthe

toolsprovidedbytheheatexchangermanufacturer.Flushingthroughwithfreshwaterisrecommended

beforeaheatexchangerisreturnedtoservice.Insomeapplications,suchaspistonoilcooling,progressive

foulingmaytakeplaceontheoutsideofthetubes.Mostmanufacturersrecommendachemicalflushing

processtoremovethisinsitu,withoutdismantlingtheheatexchanger.

Plateheatexchangersmaybecleanedbyunclampingthestackofplatesandmechanicallycleaningthe

surfaceofeachplateasrecommendedbythemanufacturers.Theplatesealsmayrequirereplacementfrom

timetotimeandherethemanufacturers'instructionsshouldbecloselyfollowed.

1.Bywhichofthefollowingindication,canweconcludethatthelubeoil-seawaterheatexchangeris

undulyfouled?

A.theheatexchangerlubeoilinlettemperaturelowering

B.theheatexchangersea-wateroutletpressurerise

C.theheatexchangertemperaturedifferencebetweenlubeoilandseawaterincreasing

D.theheatexchangerpressuredifferencebetweenseawaterinletandoutletdecreasing

2.Whatisthemostusualreasonforthefreshwater-seawaterheatexchangerfoulingintheseawaterside?

A.lubeoilsludgeaccumulatinginit

B.dirtandscaleetc.,formedonthesurfaces

C.deformationofthetubesandtheshellortheplates

D.lubeoilleakageintosea-waterside

3.Accordingtothepassage,itisrecommendedthattheheatexchangeroilsidebecleanedby.

A.flushingwithchemicalsolventwithoutbeingdismantled

B.brushingmechanicallyafterbeingdisassembled

C.flushingwithfreshwateronly

D.flushingwithcleanoilonly

4.Accordingtothepassage,whichofthefollowingstatementisnottrue?

A.theheatexchangingsurfacesshouldbekeptsubstantiallyclean

B.theheatexchangerflowpassagesshouldbeclearofobstructiongenerally

C.sealsfortheplateheatexchangerneedstoberenewedoften

D.thecleaningprocessoftheplateheatexchangershouldbedonefollowingourexperiencesonly

CBAD

Passage6

Shiprecyclingcontributestosustainabledevelopmentandistheenvironmentallyfriendlywayof

disposingofshipswithvirtuallyeverypartofthehull,machinery,equipment,fittingsandevenfurniture

beingre-used.However,whiletheprincipleofshiprecyclingisasoundone,thereportedstatusofworking

practicesandenvironmentalstandardsinrecyclingfacilitiesoftenleavesmuchtobedesired.Suchgiowing

concernsaboutenvironmentalsafety,healthandwelfaremattersintheshiprecyclingindustryhaveresulted

inagrowingbeliefthataninternationalinstrumenttoregulatetheshiprecyclingprocessisurgently

needed.

Havingbecomeawareoftheneedtoreducetheenvironmental,occupationalhealthandsafetyrisks

relatedtoshiprecycling,aswellastheneedtosecurethesmoothwithdrawalofshipsthathavereached

theendoftheiroperatinglives,theInternationalMaritimeOrganization(IMO)hastakenactiontodevelop

arealisticandeffectivesolutiontotheproblemofshiprecycling,whichwilltakeintoaccountthe

particularcharacteristicsofinternationalmaritimetransportandtheeconomicrealities.

1.Whichstatementofthefollowingistrue?

A.Shiprecyclingissustainable.

B.Shiprecyclingisveryfriendlytoourenvironment.

C.Shiprecyclingisthebestwaytodisposethemachinery,equipment,fittingsandevenfurnitureon

board.

D.Shiprecyclingbringsmanyproblemsconcerningenvironmentalsafety,healthand

occupationalsafety.

2.Whichinformationisnotgiveninthetext?

A.Shiprecyclingcontributestosustainabledevelopment.

B.TheIMObelievesthatmakingallinternationalinstillmenttoregulatetheshiprecycling

processisurgentlyinneed.

C.Aninternationalconventiononshiprecyclinghasbeenadopted.

D.TheIMOhastakenactiontodevelopaneffectivesolutiontotheproblemofshiprecycling.

3.Whatisthebestexplanationtotheunderlinephrase“tosecurethesmoothwithdrawalofships”？

A.Towithdrawashipandmakeitinasafecondition.

B.Tosecurethelifeofashipandrecycleit.

C.Tobreakawreck.

D.Tofinishtheserviceofashipandbreakitwithoutotherproblems.

4.Whatisthemainproblemliedintheshiprecyclingindustry?

A.Itliesinthesustainabledevelopment.

B.Itisabouthowtorecycletheshipastheycanaspossible.

C.Itisabigproblemconcerningenvironment,safetyandhealth.

D.Thebigproblemisthatship-recyclingwillviolatetheregulationsmadebyIMO.

DCAC

Passage7

Displacementpumpsarethosewherethevolumeofthepumpchamberisalternatelyincreasedtodraw

theliquidinfromthesuctionpipeandthendecreasedtoforcetheliquidoutintothedeliverypipe.

Centrifugalpumpsarethosewhereinanimpellerrotatingathighspeedthrowstheliquidbycentrifugal

forcefromthecentertotheperipheryoftheimpellerwheretheliquidisdischargedthroughthedelivery

outlet.

Gearpumpconsistsoftwoormoremeshinggears(spur,singleordoublehelicalteeth)enclosedma

close-fittedhousing.Theseareusedextensivelyforpumpingfueloil,lubricatingoilandhydraulicoil.

Whengearsareunmeshedontheinletside,apressuredropoccursthathelpstheatmosphericpressure

actingonthesurfaceoftheoilinthereservoirtoforceitupthepipetofillthevoid,theoilisthen

transferredaroundtheperipheryofthepumphousing.Asthegearteethmeshagainontheoutletside,they

formasealthatpreventsoilfrombackinguptotheinlet,theoilinthevoidisthenbeforcedoutintothe

dischargeline.

Allvanepumpshavearotordrivenwithinaring(camring)byadriveshaftcoupledtoaprimemover.

Acylindricalrotorwithslidingvanes,generallyinradialslots,rotateswithinthering.Thecenterofthe

rotorisoffsetfromthecenterofthering.Inasimplevanepump,astherotorturns,thevanesareforced

outwardagainsttheinnersurfaceofthecamringbycentrifugalforce.Thisoutwardradialmovementofthe

vanesandturningoftherotorcausesthechamberbetweenthevanestoincreaseasthevanespassfurther

awayfromtheinletport.Thisincreaseinvolumeresultsinaloweringofpressureuntiltheatmospheric

pressureissufficienttoforceoilfromthereservoirintotheinletchamber.Oilfromtheinletissweptaway

bythevanestowardtheoutletportthroughadecreasingseriesofchambersuntilitisforcedthroughthe

outletport.Avanepumpofbalanceddesignhasanellipticalcamringsothattwopumpingchambersare

formed.Thispumpisinhydraulicallybalance,sincethetwointakeandtwooutletportsarediametrically

opposedtoeachother.Thereforethesideloadsexertedontherotorcancelout,therebyincreasingbearing

liftandpermittinghighoperatingpressure.

1.Accordingtothelastsentenceofparagraph1,fromwheretheliquidisdischargedthroughthedelivery

outlet?

A.fromtheeyeoftheimpellerB.frompassageofimpeller

C.fromtheperipheryoftheimpellerD.fromtheimpeller

2.WhichstatementisNOTtrue?

A.Inasimplevanepump,therotorandcamringareexactlyconcentric

B.Balancedvanepumphasanellipticalcamring

C.Liquidinbothgearpumpandvanepumpareforcedouttotheoutlet.

D.Balancedvanepumpscanworkatahigherpressurethanthesimplevanepump

3.Gearpumpsarewidelyusedtotransferanyoneofthefollowingbut.

A.fueloilB.lubeoilC.hydraulicoilD.freshwater

4.WhichstatementisNOTtrue?

A.Whiledisplacementpumpworks,volumeoftheworkingchamberwillincreaseanddecrease

alternately

B.Agearpumpalwayshastwogears.

C.Anyvanepumpwillhavearotorwithinaring

D.Abalancedvanepumphastwooutletportsandtheyarepositionedsymmetrically.

CADB

Passage8

Thesewagetreatmentsystemmustbecapableofdischarginganeffluentthatcomeswithinthe

limitsofthetests.Sewagecanbetreatedbiologicallysothatitmaybedischargedwithminimaldamageto

ecosystem.Biologicaltreatmentinvolvestheuseoflivingorganismstotreatthesewagewithinthesewage

treatmentplantsotheliquidsandsludgedischargedarewithinthestandardsspecified.

Biologicaltreatmentplantsareusuallybuiltupasamoduleandconsistofvarioussections.Waste

mattercollectedfromtheshipssanitaryappliancesisledthroughasanitarypipingsystemtothetreatment

module.Thesolidmatterisbrokenupbypassingitthroughascreenoraseriesofrevolvingcutters.The

brokenupsolidmaterial,togetherwiththewasteliquid,passesintoatankcontainingbacteriawhich

requireoxygenandanutrienttopropagate.Thenutrientiscontainedinthesolidwastematerial,and

oxygenissuppliedbybubblingcompressedairthroughthebrokenupwaste.Thepropagatedbacteria

changethewastematerialintoasludgebyaerobicdigestion.Thesludgeisfinallytreatedtokillthe

coliformbacteriabeforeitispassedoverboard.

Whenabiologicalsewageplantisstartedup,suchaswhenactivatinganewshiporaftercleaningout

thetank,apelletcontainingbacteriaisintroducedintothetank.Ittakesapproximatelyoneweekforthe

bacteriatopropagateandmakethesystemfullyeffective.Thechoiceofsanitaryappliancecleaners

requiresextremecare,asmanycleanersaretoxictotheactivebacteria.Onceabiologicalsewageplantis

madeactiveitshouldnotbeshutdown.Ifitisitwillhavetobereactivatedagainbecausethebacteriawill

diewithoutasupplyofnutrientsandoxygen.

Bacteriathatrequireoxygenfortheirsurvivalarereferredtoasaerobic.Aerobicbacteriaarenormally

usedinships'sewagetreatmentequipment.Otherformsofbacteriathatdonotrequireoxygenarereferred

toasanaerobic.Anaerobicbacteriaareusedinshorebasedsewagetreatmentworkswheremethaneis

obtainedasaby-productforuseasfuel.

1.Thispassageismainlyabout.

A.sewagetreatmentmethods

B.thevarioussectionsofasewagetreatmentplants

C.biologicalsewagetreatmentsystem

D.howthesewagetreatmentplantsarestartedup

2.Biologicaltreatmentmayusetotreatsewage.

(1)livingorganisms(2)chemicals(3)additives

A.(l)B.(2)C.(3)D.⑴⑵⑶

3.Sanitarywastematterwill.(1)passthroughascreenorcutters(2)comeintocontactwiththe

bacteriainatank(3)bedischarged,normallywithoutbacteria

A.(l)B.(l)⑵C.⑵⑶D.⑴⑵⑶

4.Accordingtothepassage,thescreenorcuttersarefittedto.(1)killbacteria(2)breakupthe

solidwaste(3)removesolidmatterwithlargesize

A.(1)B.(2)C.(2)(3)D.Noneof⑴⑵⑶istrue.

CADB

Passage9

Whenanominatedsurveyororrecognizedorganizationdeterminesthattheconditionoftheshiporits

equipmentdoesnotcorrespondsubstantiallywiththeparticularsoftheCertificate(IOPP)orissuchthat

theshipisnotfittoproceedtoseawithoutpresentinganunreasonablethreatofharmtothemarine

environment,suchsurveyorororganizationshallimmediatelyensurethatcorrectiveactionistakenand

shallinduecoursenotifytheAdministration.Ifsuchcorrectiveactionisnottaken,theCertificateshallbe

withdrawnandtheAdministrationshallbenotifiedimmediately;andiftheshipisinaportofanotherParty,

theappropriateauthoritiesoftheportStateshallalsobenotifiedimmediately.Whenanofficerofthe

Administration,anominatedsurveyororarecognizedorganizationhasnotifiedtheappropriateauthorities

oftheportState,theGovernmentoftheportStateconcernedshallgivesuchofficer,surveyoror

organizationanynecessaryassistancetocarryouttheirobligationsunderthisregulation.Whenapplicable,

theGovernmentoftheportStateconcernedshalltakesuchstepsaswillensurethattheshipshallnotsail

untilitcanproceedtoseaorleavetheportforthepurposeofproceedingtothenearestappropriaterepair

yardavailablewithoutpresentinganunreasonablethreatofharmtothemarineenvironment.

Wheneveranaccidentoccurstoashiporadefectisdiscoveredwhichsubstantiallyaffectsthe

integrityoftheshiportheefficiencyorcompletenessofitsequipmentcoveredbythisAnnexthemasteror

owneroftheshipshallreportattheearliestopportunitytotheAdministration,therecognizedorganization

orthenominatedsurveyorresponsibleforissuingtherelevantCertificate,wh。shallcauseinvestigationsto

beinitiatedtodeterminewhetherasurveyasrequiredbyparagraphIofthisregulationisnecessary.Ifthe

shipisinaportofanotherParty,themasterorownershallalsoreportimmediatelytotheappropriate

authoritiesoftheportStateandthenominatedsurveyororrecognizedorganizationshallascertainthatsuch

reporthasbeenmade.

1.Whenashipisfoundnotfittoproceedtoseabyanominatedsurveyor,thencorrectiveactionshouldbe

takenandbeinformedimmediately,(l)themaster(2)theauthoritiesofportState(3)the

Administration

A.(l)B.(2)C.(3)D.(1)⑵⑶

2.Whenashipwerefounditsequipmentdoesnotcorrespondsubstantiallywiththeparticularsofthe

Certificatebyanominatedsurveyorandcorrectiveactionsunabletobetaken,then.

A.theCertificatewouldbewithdrawn.

B.theshipownerwouldbefined.

C.theshippingcompanymustbenotifiedimmediately.

D.theshipmustproceedtothenearestappropriaterepairyardforarepairwithoutdelay.

3.Whenashipwerefounditsequipmentdoesnotcorrespondsubstantiallywiththeparticularsofthe

CertificateinanotherPartyandcorrectiveactionsunabletobetaken,thenallthefollowingshouldbetaken

except.

A.theCertificatewouldbewithdrawn.

B.theAdministrationshouldbenotifiedimmediately.

C.theappropriateauthoritiesoftheportshouldbenotifiedimmediately.

D.theshipshouldproceedtothenearestappropriaterepairyardwithoutdelay.

4.IntheSecondparagraph,theunderlineword"Who”,insuchacontext,standsfor.

A.themasterorowneroftheship

B.theAdministration

C.theAdministration,therecognizedorganizationorthenominatedsurveyorresponsibleforissuingthe

relevantCertificate

D.theappropriateauthoritiesoftheportState

CADC

Passage10

Undernormaloperation,somelubricationoilmistmaybedischargedfromtheaircompressortothe

airstartsystem.Thisoilmaybefromexcesscompressorcylinderlubrication,fromfaultyoilscraperrings,

ormayevenbesuspendedoilvaporcontaminatingtheengineroomatmosphereanddrawninatthe

compressorsuction.Oildischargeiskepttoaminimumbydrainingtheaftercooler,airreceiverand

startingsystem.Ifsmallquantitiesoflubricationoildogetpassedintothestartingairsystem,theywill

depositasthinmoistfilmoverinternalpipesurfacesbutarenotreadilycombustible.Ifacylinder

non-retumvalveleakwhiletheengineisinoperation,somehotgas,possiblywithunbumedfueland

cylinderlubricationoil,maybeblownthroughthevalvetotheadjacentairmanifold.Withfurtherheating

fromtheleakyvalve,this,togetherwiththealreadydepositedoilfilm,willcarbonizeandform

incandescentcarbon.Ifstartingairisappliedtothesystemwhilestillhot,thehighpressureaircominginto

contactwiththeburningcarbonmaycauseanexplosion.Suchanexplosionwillcauseaflametopassback

throughtheairstartpipesystem,evaporatingthedepositedoilfilmandignitingitinthepresenceofair.

Veryhighvelocitiesandshoc