Which of the devices listed is common to all types of pumps?

TheseparatesuppliesareconnectedineitherstarordeltaformationThestarformation ismostcommonlyusedandrequires_____slip-ringsonthealternator.

Thepercentageofimpuritiesinaspecificfueloilsampleisdeterminedby_____.

Anadvantageofahelicalgearpumpoverasimplegearpumpisthatthehelicalgear pumpiscapableof_____.

Whichofthefollowingstatementsiscorrectconcerningheattransfer?

Ifthereliefvalveonthedischargesideofahydraulicpumpliftsthecausecould be_____.

Condensatemustbedrainedfromtheintercoolerandafter-coolersofanaircompressor because_____.

Excessivelubeoilconsumptionbyareciprocatingaircompressorcanbecausedby_____.

Anexcessivechargeofrefrigerantinanair-cooledrefrigerationsystemcancause_____.

Anincreaseinrotorclearancesinarotarypumpwill_____.

Increasedinternalleakageinadditiontopoorhydraulicsystemresponseand inadequatelubricationistheresultof_____.

Theenergyassociatedwithmoleculesisknownas_____.

Whichofthelistedoperatingconditionswouldhavethegreatesteffectonthe volumetricefficiencyofanoperatingreciprocatingaircompressor?

Electricalsupplyisalwaysneededevenifonlyforlightingsoafterashipgoesinto serviceitisextremelyrareforthemainbus-barstobedeaditthereforefollowsthat thebus-barsarecontinuouslyalive_____thelifeoftheship.

Pittinginthesuctionareasofacentrifugalpumpbronzeimpellerisusuallycaused by_____.

Whichofthefilter/strainerunitslistedpermitsyoutocleantheelementwhileleaving thesystemontheline?

Whichofthefollowingproblemscouldcauseairtoblowoutthroughtheinletairfilter ofarunningcompressor?.

Whichofthemotorsforthedeviceslistedbelowisfittedwithaninstantaneousoverload relay?

Theoperationofparallelingtwoalternatorsrequiresthevoltagestobe_____andalso inphase.

Rotationofthesteeringwheelonthenavigationbridgeinitiatesoilpressurebeing appliedtothesteeringgearramsby_____.

Thedifferencebetweenmeasuredanddesiredvaluesiscalled_____.

WhichofthevalveslistedisNOTconsideredtobeahydraulicsystemdirectionalcontrol valve?

Dirtshouldnotbeallowedtocontaminateagreaselubricantbecausethe_____.

Thevacuummaintainedinthesaltwaterfeedheatershellofaflash-typeevaporator isgenerallyaccomplishedby_____.

Thefunctionofthehydraulictelemotortransmitterusedinanelectro-hydraulic steeringgearsystemisto_____.

Whichofthefollowingstatementsiscorrectconcerningtheviscosityoflubricating oil?

Whichofthefollowingstatementsiscorrectconcerningtheflashpointofaliquid?

Whenthedesiredrudderangleisattainedbyatypicaldoublemmelectro-hydraulic steeringgearthe_____.

Themagneticfieldisprovidedbyelectromagnetssoarrangedthatadjacentpoleshave _____.

WhichofthelistedpumpsisNOTapositivedisplacementpump?

Ifarefrigerationcompressorisshortcyclingonhighheadpressureyoushould_____.

Onedistinctadvantageofflashtypeevaporatorsascomparedtomostotherevaporators isthatinaflashevaporator_____.

Theviscosityofanoilisameasureofits_____.

Whichoftheconditionslistedrepresentsthegreatesteffectofexcessfrost accumulationontheevaporatorcoils?

Whileinspectingthesteeringsystematseayoushouldcheckfor_____.

Theairchargeleavinganintercoolerorafter-coolerofanaircompressorcanbe expectedtobe_____.

Moistureisremovedfromarefrigerationsystemby_____.

Whattypeofrotorisusedinsplit-phasemotors?

Inanelectro-hydraulicsteeringgearsystemwhenwillthevariabledisplacementpump beplacedonstroke?

Whichofthefollowingstatementsistrueconcerningtheoverallefficiencyofair compressors?

Whichofthelistedstatementsiscorrectconcerningrefrigerationsystems?

Thetemperaturedifferentialoccurringbetweentheinlettemperatureofthefluidto becooledandtheoutlettemperatureofthecoolingmediuminashell-and-tubeheat exchangerisgreatestinwhichoftheflowdesignslisted?

Ifthesuctionpressureattherefrigerationcompressorisbelownormalthecausecan be_____.

Whichofthelistedstatementsiscorrectconcerningthestartingofcentrifugalpumps?.

Sacrificialzincanodesareusedonthesaltwatersideofdieselengineheatexchangers to_____.

Theoilinacargowinchgearboxshouldbesampledperiodicallyto_____.

Scaleaccumulationonevaporatorheatexchangesurfaces_____.

Thevalvebestsuitedforthrottlinggasorliquidflowinapipelineisthe

Undernormalconditionstherefrigerantentersthecompressorinanoperating refrigerationsystemasa_____.

Theoperatingmediumforcontrolsystemsmaybe_____.

Theliquidflowinginthecapillaryissuchthatthedifferencein_____readingstaken beforethecapillaryandafteritisrelatedtotheoilviscosity.

Theaccumulationofairandothernon-condensablegasesinarefrigerationsystemwill _____.

Whichofthefollowingconditionsmustexistforheattoflowfromoneobjecttoanother?

WhichofthefollowingstatementsaboutpumpoperationsisNOTacorrectstatement?

Whichofthefollowingproblemswouldbetheprobablecauseforthefaultyoperation ofareciprocatingaircompressorsuctionvalve?

Excessiveoilfoaminginthecrankcaseofarefrigerationcompressorismostlikely tooccurwhenthecompressor

Acrackeddiaphragminathermostaticexpansionvalvewillcausethevalveto_____.

Sub-coolingisamethodofreducingthetemperatureoftheliquidrefrigerantbelow its_____.

Whenairbecomestrappedinthehydraulicfluidofasteeringsystemthe_____.

AnACsynchronoustransmissiontyperemotesteeringcontrolsystemconsistsofa_____.

Whichofthefollowingstatementsrepresentsthemaindifferencebetweenarelayand acontactor.

Differentialpressurescanbemeasuredwiththeuseofa_____.

Ifyouchangefromalowpourpointlubricanttoahighpourpointlubricantina refrigerationsystem_____.

Thegreatestdetrimentaleffectonidleelectricalequipmentsuchascargopumpmotors isthe_____

_____isusedtoproduceelectricpower.

Adirectcurrentpassingthroughawirecoiledaroundasoftironcoreisthedescription ofasimple_____.

Whenthereisnomovementoftheramsonanelectro-hydraulicsteeringgearthetilting boxoftherunningpumpis_____.

AlubeoilfiltercanbeusedtoremovemostcontaminantsfromlubeoilAcontaminant whichwillremaininthelubeoilafterfilteringis_____.

Anincreaseintheheatloadtoarefrigerationsystemwillcause_____.

_____istheactualvalueofthecontrolledcondition.

Whichoftheproblemslistedcouldbeindicatedifasightglassintherefrigerant liquidlineisfullofbubbles?.

WhichofthefollowingmodesofheattransferdoesNOTrequireanyphysicalcontact betweenawarmerandacoolersubstance?

Badlyleakingrefrigerationcompressordischargevalveswillcause

Ifanelectricmotordrivenaircompressorfailstostartitmaybeduetoa_____.

Aviscosityregulatorusedforanengineisusuallyprovidedinorderto_____foran engineburningheavyfueloil.

Tothoroughlypumpoutthebilgesusingahorizontallymountedcentrifugalpumpthe _____.

Inamodernthree-phaseA.Csynchronousbrushlessgeneratortheexcitationwindingis ontherotorThatmeans_____.

Thecapacityofacentrifugalpumpcanbeincreasedbytheinstallationofalarger diameterimpellerAnothermeansofincreasingthepumpcapacityisto_____.

Whichofthelistedconditionswillcausethefeedwaterthathasnotflashedtovapor inthefirst-stageofaflashevaporatortoflowintothesecond-stage?

Operatingarotarypumpatspeedsinexcessofdesignrequirementscouldcause_____.

Reducedcapacityaccompaniedbyvibrationandnoiseatthesuctionofacentrifugal pumpisaresultof_____.

Remotecontrolmeansthat_____.

WhenarefrigerationcompressormotorfailstostarttheFIRSTthingthatshouldbe checkedforisa_____.

Usuallythepanelsareinterlockedwith_____sothatthedevicescanbemadedeadbefore thedoorsareopened.

Thefirstrequirementforlogicaltroubleshootingofanysystemistheabilityto_____.

Whenitisnecessarytoopenarefrigerationsystemforrepairsandthesystemwill beopenformorethanafewminutestheopenendsofthesystemshouldbe_____.

Ifarefrigerationcompressorisrunningcontinuouslywithoutloweringthetemperature intherefrigeratedspacethetroublemaybe_____.

Ifonehydraulicpumpofanelectro-hydraulicsteeringunitfallsthevesselssteering canbeinitiallyandbestmaintainedbyusingthe_____.

Apressuredropthroughtherefrigerantliquidlinemaycause_____.

Asalinityindicatorisusedtodeterminethe_____.

Whichofthefollowingstatementsdescribesthefunctionsofareservoirusedina hydraulicsystem?

Saltwateristypicallyprovidedtoarefrigerationsystemto_____.

Airblowingfromtheintakeairfilterofanoperatingaircompressorindicates______.

Inarefrigerationsystemfoamingofthecrankcaseoilmaycausethe_____.

Anaircompressorcanbeunloadedatstart-upby_____.

Electricinsulationismadeoforganicsubstancesandsogradually_____withage.

Thecomponentofarefrigeratingsysteminwhichtherefrigerantvaporizesandabsorbs heatisknownasthe_____.

Adirtyintercooleronanaircompressorwillcause_____.

Whichoftheproblemslistedrepresentsthemajordifficultyencounteredwiththermal expansionvalveoperation?

Theelectrolyteinalead-acidstoragebatteryconsistsofdistilledwaterand_____.

Brushlessgeneratorsaredesignedtooperatewithouttheuseof_____.