Valve gear knocks are more easily located while the engine _____.

Whichofthefollowingpumpsareself-primingandcandealwithliquidfromalevel belowthepump:1reciprocating;2vane;3gear.

Misalignmentofthedriveshaftandpropellershaftflangescanbedetectedbyusing adialindicatoror_____.

Therateofheattransferinawater-tubeauxiliaryboilercanbeincreasedby.

Througha_____pumptheliquidistransferredfromthesuctiontothedischargeby themechanicalvariationofthevolumeofachamberorchambers.

Athrustbearingisusedwithapropulsiondieselengineto_____.

Thedonkeyboilermaybegivenabottomblow_____.

Thetemperaturedifferencebetweentheinletandoutlettemperatureofthelubeoilcooler inthelubricatingsystemforthedieselengineisgenerallybetween_____.

Withthecrankinpositionintheenginesomemeasurementscanbetakenbyaspecial bridgegaugeand_____.

WithVITunitthetimingoffuelinjectionofanenginecanberegulatedautomatically accordingtothe_____.

Themaximumpressuredevelopedbyawasteheatboilerisdeterminedbythemainengine exhaust_____.

In_____pumpsacloseddischargevalvewillcauseburstingdischargepressure.

Whichofthefollowingdevicesiscommontobothmechanicalandhydraulicgovernors?

Inafour-stroke/cycledieselenginethecamshaftrotatesat_____.

Adonkeyboileris_____.

Fusibleplugsareinstalledinfire-tubeboilersto_____.

Successfulcombustioninsidethecylindersofadieselengineisdependentupon_____.

Thereplacementpipingfordieselenginehighpressurefuelsystemsmustbethesame lengthanddiameterastheoriginalpipingto_____.

Gearpumpsareofpositivedisplacementtypepumpsbecausetheydischargeanearconstant amountofliquid_____pressure.

Fuelinjectionsystemsmeterfuelatomizefueland_____.

Whichofthefollowingwilltakeplaceiftheclearanceofthemainbearingsareexcessive?

Indirectcoolingoffuelinjectornozzleholdersfordieselenginesisaccomplished primarilyby_____.

Fueloilbeginsinjectionintothecylinderofafour-stroke/cycledieselengineduring the_____.

Temperaturecontrolvalvesinstalledinthejacketcoolingwatersystemofadieselengine modulatestherateofwaterflowthroughthe_____.

Foragivenfuelachangeinthecompressionratiowillaffecttheignitionlagbywhich ofthelistedmeans?

The_____pumpdischargesanearlyconstantamountofliquidregardlessofpressure.

Electricallyoperatedsafetydevicesonauxiliarydieselenginesfunctiontostopthe engineby_____.

Impropercoolingofadieselenginecylinderlinerduetotheaccumulationofscale depositsmaycause_____.

Theboilerfeedwatercheckvalvesarelocatedonthe_____.

Iffuelinjectiontoafour-stroke/cycledieselenginebeginsearlierthandesigned ignitionmaybedelayedbecausethe_____.

Whichofthefollowingdevicesisacommonbasicelementwithnearlyallmechanical governors?

Whenstartedacompleteoilywaterseparatingunitisfirstfilled_____Theoilywater mixtureisthenpumpedthroughtheinletpipeintothecoarseseparatingcompartment.

Youincreasedthe_____to150tonsthat’swhythefueloil_____.

Inusingreductiongearstoobtainefficientpropellerspeeds_____.

Largetwo-stroke/cyclemainpropulsiondieselenginecylinderscanbesuccessfully pressurechargedduringnormaloperationbyusingthe_____.

Thecamshaftonafour-stroke/cycledieselengineprovidesameanstooperatethe_____.

Youshouldfrequentlycomparedrum-mountedandremote-readingwaterlevel indicators_____betweenthesehavecontributedtofailuresbecauseofoverheating throughshortageofwaterwhenaboilerwasbeingoil-fired.

Whatpreventativemaintenanceshouldbedonefrequentlytodieselenginestartingair receivers?

Theamountoffluiddeliveredbyacentrifugalpumpcanberegulatedby_____.

Atwo-strokedieselengineexhausttemperaturewillbelowerthanafour-strokediesel engineofthesamedisplacementbecausethe_____1MEPislowerandthescavenging airiscoolingtheexhaustgases;2valveoverlapinafour-stroke.

Afteranormalorsafetyshutdownautomaticcombustioncontrolsystemsforanauxiliary boileraredesignedtopreventtheimmediaterefiringofaburnerinorderforthe_____.

Adieselengineisoperatingat1800RPManddrivingapropellerat600RPMWhatisthe speedreductionratio?

Thefurnaceofanoilfiredboilershouldbe_____beforetheoperatingburnerislit.

Awasteheatboilerisinstalledonsomedieselpropelledvesselsto_____.

Ifthechemicalanalysisofalubeoilsampletakenfromadieselengineindicatesan increasedneutralizationnumberthe_____.

Ina_____boilerthehotgasesfromthefurnacepassthroughthetubeswhilethewater isontheoutside.

Throttlinginthe_____lineofacentrifugalpumpinvolvestheriskofthepumpcavitation.

Theminimumspeedanenginemustattainbeforeignitioncanoccurdependsupon_____.

Formanyyearsmarinecentrifugesweredesignedfor_____operationthatisthemachines wererunforaperiodduringwhichsolidsaccumulatedinthebowlThemachinewasstopped whentheaccumulatedsolidsbegantoimpairitsperformance.

Inasimplemechanicalgovernorthe_____.

Whatisthefunctionofthethrustbearing?

Whencentrifugingheavyfueloilanimportantfactortoconsideristhe_____1flow rate;2viscosityofthefueloil.

Areciprocatingpumpbelongsto_____accordingtoitsworkingprinciple.

Ifadieselengineisdifficulttostartandoperateswiththeenginetemperatureslower thannormalyoushouldsuspectthatthe_____.

Thepurposeofthedeliverycheckvalveusedinadieselfuelinjectionjerkpumpis to_____.

Alargelow-speedmainpropulsiondieselengineusesseawatertodirectlycoolthe _____.

Thedieselenginevalvesubjectedtomostsevereconditionsofserviceisthe_____.

Ifyoudon’tunderstandthemeaningofthetechnicaltermsofthedieselengineyou can_____thedictionaryofmachinetechnology.

Ifthejacketwatertemperatureofanoperatingdieselenginesuddenlyrisesabovenormal thecausecanbeattributedto_____.

Inthecombustionchamberthepartwhosesurfaceisexposedtothehighesttemperature isthe_____.

Astothepistoncoolingofthefollowingwhichstatementisnottrue?

Adecreaseintheflashpointofdieselenginelubeoilindicatesthelubeoilhasbecome _____.

Anadvantageofaluminumpistonswhencomparedtocastironpistonsis_____.

Withregardstoadieselenginecrankcaseexplosionthemostviolentisthe1primary explosion;2secondaryexplosion.

Ifthefeedpumpforanauxiliaryboilerfailstodeliverthefeedwatertotheboiler thecausemaybe_____.

Whichofthefollowingconditionscouldcausethefeedpumpforanauxiliaryboilerto losesuction?

Theairsuppliedtoadieselengineiscompressedto_____1provideheatfortheignition ofthefuel;2decreaseinjectiondelay.

Anincreasedpressuredifferentialbetweentheinletandoutletofastrainerusually indicatesthestraineris_____.

Ifthemainengineofanunattendedengineroomshutsdownautomaticallyitwillbe indicatedbyanalarm_____.

Whichofthefollowingpumpsbelongstocentrifugalpump?

Thehighestpressureinadieselenginecylindernormallyoccurs_____.

Adieselenginecrankcaseventilationsystem_____.

Withfour-strokeenginesittakesfourrevolutionsofthecrankshafttomake_____ powerstrokes.

Latentheatchangesthe_____ofwater.

Adieselengineisoperatingwithexcessivelyhighexhausttemperaturesatall cylindersTocorrectthisconditionyoushouldFIRST_____.

Ifthevalvetappetsinadieselenginearesetatgreaterclearancesthanthosespecified bytheenginemanufacturerthosevalveswill_____.

Todetermineifthelubeoilfilterelementsneedchanging_____.

Loadcontrolonadieselengineisaccomplishedby_____.

Oxygencorrosioninauxiliaryboilersispreventedbytreatingtheboilerfeedtankwith eithersodium_____.

Whatfunctionisprovidedbythecrankcaseventilationsystemonsomedieselengines?

Thesmallendoftheconnectingrodisattachedtothepistonwitha_____.

Supposetheratedcapacityofthemainengineofashipis10000kWat100ratedrpm thenwhenat80rpmitscapacityshouldbe_____.

Acentrifugearrangedtoseparateimpuritiesandsmallamountsofwaterfromoilisknown as_____.

Thefuelsupplysystemtoanautomaticauxiliaryboilerwillbeautomaticallyshutdown iftheboiler_____.

Inmotorship_____isoftenusedtorecoversomeoftheheatcarriedintheexhaust gasesfromthemainengine.

Themainpurposeofthepistonoilscraperringsisto_____.

Asforahydraulicvanepumpwhichofthefollowingisincontactwiththevanesduring working:1therotor;2thepumpshaft;3theexternalsurfaceofthehousing.

ForVee-formengines_____isshapedtogiventwosloppingsurfaceonwhich_____are placedatthecorrectrelativeangletoeachother.

Thespeedofthecamshaftinatwo-stroke/cycledieselenginerunningat950RPMis _____.

Theamountoffluiddeliveredbyapositivedisplacementpumpcanberegulatedby_____.

Whichofthefollowingpumpswillbuildupaburstingpressureorstalltheirmotors ifthedischargevalvesareclosed?1gear;2centrifugal;3screw.

Theamountoffluiddeliveredbyahelicalpumpcanberegulatedby_____.

Thejacketwatertemperatureinadieselengineclosedfreshwatercoolingsystemis normallycontrolledby_____.

Themainfunctionoftierodsintheconstructionoflargelowspeeddieselengines isto_____.

Scaleanddirtaccumulationinthewatersideofalubeoilcoolerwillbeindicatedby agradualincreaseinthelubeoil

Whichofthefollowingmayhardnessoftheboilerwatercause?1scaleformation;2 tubefailure;3corrosion.

WithVariableInjectionTimingthestartofinjectionmaybe_____astheengineload isreduced.

Ifthetemperaturedropslowenoughoilwillnotflow_____justtellusthetemperature.

Theinternalpartoftheboileriffound_____hastobechemicallywashedbyyard.

Athree-waythermostaticcontrolvalveregulatesthedieselenginecoolingwater temperaturebypassingaportionofthewater_____.

Adazzlingwhiteburnerflameintheboilerfurnaceindicates_____.