輪機(jī)長(zhǎng)和大管輪面試題目

Interviewconductedfor

C/E&2/Ecandidate

1：Whatistheplanttoreadyformanoeuvinganddeparture

port?

*startthesecondgeneratorandafterallchecks,takeiton

load

*Thethirdgeneratorshouldbekeptonstandbycondition

*Essentialstepstobenoted:Turningengineindicatorcocks

parametersabnormalnoise

"ChecksystemFOserviceandsettlingtanksdieseloilservice

tankairsystemLOsystemT/CCWsystemcheckingthe

fuelregulatinggear&startingsystem

*slowturningtheengine

*thismustbecarriedouttopreventdamagecausedbyfluid

inoneofthecylindersandtocheckthereversing

mechanism

*Beforebeginningtheslowturningobtainpermissionfrom

thebridge

2whatitemstobeanalysisonlubeoil?

*SpecificgravityviscosityflashpointTAN(totalacid

number)SAN(strongacidnumber)alkalinityTBN(total

basenumber)watercontentConradsoncarbonash

insoluble

3whatcauseofexhausttemperaturerisesinallcylinders?

*Increasedscavengeairtemperatureowingtoinadequateair

coolerfunction

*Fouledairandgaspassages

*Inadequatefueloilcleaningoralertedcombustion

characteristicsoffuel

*wrongpositionofcamshaft

4whatcausesofhighturbochargerspeed?

*Fouledairfilter(earlystageofunloadingthecompressor)

*Fire(earlystage)intheexhaustcheckimmediately.

5whatcausesofcylinderknocking?

*Fueltimingtoofaradvanced

*fuelinjectorvalveneedlestickingatopenposition

"Excessivecarbonbuiltuponthecrown

*Brokenexhaustvalve

*Mechanicaldamageinthe3cylinder

6whatactiontobetakenofcrankcasemistdetectoralarm

(nevercutoutmistdetectorpotentiallydangerous)?

*InformbridgeandC/E

*Stayawayfromcrankcases

*slowdownandstop

"startturninggearimmediatelyforatleast30minutestocool

down

*Throughinvestigationofmistdetectorcrankcase

abnormalityandmovingpartsrequired

7whatcausedofscavengefireandactiontaken?

*InformbridgeandC/E

*Donotstandnearthereliefvalves

*slowdownengineensurethattheauxiliaryblowersareoff

*Incasethefirepersistsstoptheenginegraduallytoprevent

riskofpistonseizure

*Fireshouldbegooffwhenalldepositsburntout

*keepturningtheenginewithcoolingontopreventseizureof

movingparts

8whatactiontakenwhencrankcaseexplosion?(Mostofthe

casesenginewillsuddenlystopuponexplosion)

"Informbridgeandchiefengineer

*evacuatetheE/R

*Everysafeefforttobemadetoturnenginebyturninggear

orslowturningfor30minutestopreventseizureofmoving

parts

*Thoroughinvestigationrequiredintothecauseofthe

explosionbeforerestarting

9Whatwillyoudowhenboilerwaterlevelwaslowduring

normalsteamingcondition?

*Fiststartthestandbyfeedwaterpump

"Secondcheckandwashthelocalwaterlevelgauge

*Thirdcheckanyleakageonsteampipesorsafetyvalves

10Turbochargersurgingcausesandpreventivemeasures?

*T/Csurgingcanbedividedintothreemaincategories

*malfunctioninthefuelsystem

*Rapidvariationsintheengineload

*Fuelsystemfuelinjectionsystemfuellinecomponentsfuel

timing

*exhaustsystemvalveexhaustpassagethroughturbocharger

andgasboiler

*scavengeairsystem

*MiscellaneousrapidchangesinloadandRPMgovernor

*Immediateactiontemporarilycounteractedbyblowingoff

ReduceengineloadbytakingtheT/Cawayfromthe

surgingline

*Preventivemeasuresregularmaintenanceofitems

mentionedabovepreventloadfluctuationsduringballast

voyageandbadweather

^PeriodicalcheckofM/Ebedplateastrengthmember

*Crossgirderunderthebearinghousing

*Boltholes

*Holdingdownboltsofslackening

*Chocks(frettingcracksandslackness)

11Turboblowermaintenanceduringoperationandcheck

tobemadeduringmaintenance

Importantpointsforturbochargermaintenance

?Gascasingscalingandcorrosion

?Watertreatmentisessential

?Rotorunbalanceduetoimpropercleaningoftheair

sideaswellasturbinesidewheels

?Airsideimpellerusuallyhaveafilmofoilonthe

aluminumsurface

?Gassideinservicecleaningnecessarytoprevent

depositsfromcombustionproducts

?Impropercleaningofairsideorturbinesidecould

resultinrotorunbalanceandsubsequentoperational

problems

?Bearingsandgearpumpsshouldberepairedat

intervalsspecifiedbymaker

12Dailyroutinechecksrequiredonsteeringgearsystem.

*Oilquantityintheoiltankwithinrangeoflevelgauge

*Oiltemperature

*Pressuresofhydrauliccylinderscomparingwithnormal

data

*Abnormalnoisesandvibrationfrommovingpartsand

motorcouplings

*Oilleakagesfromtankcylindervalvesrampackingand

pipejoints

*Abnormaloverheatingofcylinderstuffingboxand

glandsmotorampler

13Immediateaction/causesofabnormalrelatedto

steeringgearsystem.

*Rudderdoesnotrespond

*Troubleofautopilotcontrol

*Controlthesteeringgearbythetrickwheelinthe

steeringgearroom

*Failureinbufferspringlevelsandpins

*Continuetheoperationbychangingtostandbypump

unitafterremovingthebrokenpart

*Troublewithhydraulicpump(includinglink

mechanism)

*Checkthelinkmechanism(coupling)andelectrical

powertothepump

*Lightlypressthepumpsuctionvalveandcheckforoil

suction

*Troubleorabnormaloperationofvalves

*Obstaclesaroundthetillerandram

Rudderrateofturningspeedlow

?Slowautopilotordering

?Troubleandabnormaloperationofvalves

?Externaloilleakage

14Ifmainengineturbochargeroutofoperationduetorotor

bladedamageasachiefengineerwhatwillbeyourplanandadvise

toallengineertoresumeseapassageASAP?

-Ifmainengineoneunitoutofoperationduetofuelpump

rollerguidedamage(nosparepartonboard)whatprecautionwill

youtakeandyourplantoresumepassagewithoneunitcutoff.

-whatdomeanbybalancedengine(Ifpeakpressure

different)whatwillbeaffectonengine

-Ifoneunitpeakpressurehighcomparetootherunitwhat

willbeyouractiontobalancetheengine

-Howyouwilladjustfuelpumptimingforscrolltypefuel

pump?

-Iftimingadvanceorretardedwhatwillbeaffectonengine

exhausttemperatureandpeakpressure?

15Pilotonboardenginecannotstartfromcontrolroom.Asa

chiefengineerwhatwillbeyourfirstactionofplan.

-Ifcannotstartenginefromenginelocalsidewhatisyour

planofactiontostartengineASAP?

-Whatareyougoingtocheckinenginemaneuveringsystem?

-Beforetakingbunkerwhatwillyourplanasachiefengineer?

-HowwillyoumaintainmainenginefuelsystemifAL/SLis

highandalsowatercontentishigherside?Fuelandlubeoil

purifiercorrectoperationprocedureandasachiefengineeradvise

toallengineer?

-Auxiliaryenginerunningonheavyoilstartingdifficulties

onDOwhatisyouractiontoresolvestartingproblem?

-Boilersafetyandactionofplanifboilertubeleakageatsea.

advisetoallengineerregardingimportanceofboilerwater

treatment?

-Oilywaterseparatoroperationandincineratoroperation

andhowyougoingtofillupoilrecordbook/sulpherrecordbook?

-oilywaterrecordbookandincineratorcapacityhowwill

calculateinoilrecordbook?

-CMSitempreparationasachiefengineer

-Earthfaultfindingswhatisyourplanandhowyougoing

tocheck?

-Generatorcircuitbreakercannotclosewhatisyour

action?

-Ifanymachinerymergerreading0whatisthecause?

16Howdoyouunderstandgoodhousekeeping?

Answer:-Safeandsecurestorageoflooseitems

-propersecuringofdoorsetc

-Goodmaintenanceoffittingsandfixtures

-Adequateilluminationofworkortransitarea

-Avoidanceofoverloadingelectricalcircuit

especiallyincabins

-Clearandlegiblesignsoroperationalnotices

-Properclearanceanddisposalofgarbageorwaste

materialsorwasteoil

17whohasresponsibilityforprotectionofenvironment?

Answer:Everybodyonboardhastheresponsibilityto

protecttheenvironment

18Whatwillyoudofromyourenginesidewhenshipgetsfire

whiledischargecargoinport?

Answer:-Lifesaving

-Supportfirefightingteam

-Prepareengineforleavingtheport

19Ifyouhavetoworkinsideofanenclosedspace,whatis

necessarybeforeyoucommenceyourwork?

-Workpermitfrommasterorchiefengineertoenter

enclosedspace.

20Whatwillyoudotopreventspreadingoffire?

-shutoffventilatortoaffectedarea

-Switchoffelectricalpowersupplytoaffectedarea

21Howwouldyoudetecttheconditionofdieselengineduring

operation?

22Howwouldyoukeepdieselengineingoodoperationorder?

23Howmanytypesofindicatordiagramcanbeobtainedfrom

twostrokedieselengine?

24WhatistheindicationthatwhitesmokefromM/Eexhaust

funnel?

-Itistheindicationthatfueloilisevaporatinginexhaustgas

manifoldandusedtohappenduringraisingenginespeedfrom

harborspeedtoseaspeed

-Intheotherhanditisindicationhighwatercontendinfuel

oilorthereiswaterleakageinoneofcombustionspace/exhaust

valve'

25whatistheindicationofblacksmokefromM/Eexhaustfunnel?

26Howwouldyouorganizeengineersandratingsforoverhauling

ofM/Epistonpistonringandstuffingboxduringportstay?

27HowwouldyouprepareforM/EX-headsurvey?

28WhatdoyouunderstandPMS?

29DescribesafetvshutdownandalarmsforM/E

30howoftenwilltestsafetydevicesinE/R?

31WhatwillyoudoifM/Eremotecontrolwasfailedduring

maneuvering?

32Howmayfuelbecutoffacylinderwithoutstoppingtheengine?

33Howwouldyouconfirmaexhaustvalveofmainenginewas

leaking?

34HowwouldyoucheckM/Eairstartingvalvewasleakage?

35WhatisthepurposeoftakingM/Ecrankshaftdeflection?

36Ifashipgoesagroundwhatprecautionsmustbetakenafter

vesselisafloatpriortooperationM/E?

37Whatexaminationcarriedoutbeforedismantlingmain

bearing?

38Howaremainbearingremovefromthebearingpocket?

39WhatwouldyoudoifM/Eturbochargersurgingoccurred?

40whatisthecauseofturbochargersurging?

41Howwouldyouknownexhaustturboblowerairfilterrequireto

becleaned?

42whatdoyouunderstandaboutISMcode?

43whatdoyouunderstandaboutMARPOL?

44WhatdoyouunderstandaboutSOPEP?

45Explainbunkeringprocedure.

46Whatdrillwillyoudowithin24hoursbeforebunkering?

47whataretheusualcausesofstartingairvalveleakage?

Answer:leakageofstartairvalveisusuallybysluggish/seizes

valveaction.Preventingfastclosureofthevalveorthebydirt

orforeignparticlesfromlodgingonthevalveseatandso

preventingthevalvefromfullyclosed

48whyitisneedtokeepthemainenginetobewarmenoughtoa

temperatureof50to60degreeCelsius?

Answer:Toavoidcondensationinthecrankcaseandtobeableto

gethightemperaturefortheaircompressedinthecylinderat

thetimeofmaneuvering.

49Iftheautomaticstartingairvalveshouldfail(luring

maneuveringtime.Whatprovisionismadesothat

maneuveringcanbecontinued?

Answer:Usuallydesignersprovideemergencyoperatinghandles

orhandwheelstoopenanddosethevalvemanually.All

joinedengineershouldobserveit.

50Doyouthinkitisnecessarytorunthecoolingwaterpumpand

lubeoilpumpwhenyouaregoingtocheckpiston.pistonrings

andcylinderlinersthroughinspectionpeepholes?

Answer:Yesitisagoodpracticetoruncoolingwaterpumpand

lubeoilpumpwhentocheckpiston,pistonringsandcylinder

throughtheinspectionpeepholesbecauseitcanbeobserved

clearlyifthereisanyleakageofwateroroilfromcylinder

linerorpiston.

51IfyouhaveexperiencewithMAN-B&WMCengines,whatwill

happentothefuelinjectionpumpwhenreversingrollerguide

forparticularinjectionpumpdoesnotmovetotherequired

position?

Answer:Thesafetydevicewillactivatedandfuelpumprackwill

beremainedinzeropositionandnofueloilwillbeinjected

fromthatpump

52Whatarethecausesofscavengefirofatwostroketypemain

engine?

Answer:Accumulationofsludgeandfueloilinscavengeairspace

andconsiderableblowoutfromscavengeairportsofcylinderliner

orliners

53Whatwillyoupreventoccurringofscavengefire?

Answer:a.Ensurescavengesairspacedrainvalveisslightly

openedduringoperationofengineandcheckthedrainisnot

blocked

b.Openthedrainvalveandblowoffmomentarilyonceinevery

watchtopreventcloggingofscavengedrainline

c.Cleanedthescavengeairspaceanddrainpipeandvalveat

regularintervals

d.Maintainfuelinjectionvalves,pistonringsandcylinderlinersat

regularintervalsandinspectionpistons,pistonringsandcylinder

linersthroughinspectionholesregularlytod3cidetheconditionof

respectiveparts

e.cleanedturbochargerregularly

54Howcanyouknowthatscavengefireoccursinyourengine?

Answer:a.theriseofexhaustgastemperaturefromthecylinder

affectedbythefire

b.theenginespeeddrops

c.turbochargermaysurge

d.exhaustgascolorfromfunnelwillbeblack

e.scavengeairtemperaturerise

55Whatkindofactionwillyoutakeimmediatelywhenyouknow

thatscavengefiretakesplace?

Answer:a.reducesenginespeedtoslow,informbridgeand

requestforstoppingofmainengine

b.ifpermittedstopengineandstopauxiliaryblower

c.checkscavengeairtemperaturewithlocalthermometerandif

temperatureexceed80degreeCelsiususescavengefireextinguish

system.Iflessthan80degreeCelsiuscanopenthewindowwith

greatprecautionandextinguishfirewithfireextinguisherforoil

fire.

56Whateffectsdoesafterburninghaveonanengine?

A.Createshighex