The lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition is called _____.

PriortostartinganACgeneratorprimemoverthevoltageregulatorcutoutswitch shouldbeplacedinthe_____.

Whichoftheconditionslistedwillcausearefrigerationcompressortorunconstantly withoutsimultaneouslydecreasingthetemperatureintherefrigeratedspace?

Themostcommonsourceofexcitationforsynchronousmotorsisa/an_____.

MoistureinaD.Cmotorwouldcause_____.

TheseparatesuppliesareconnectedineitherstarordeltaformationThestarformation ismostcommonlyusedandrequires_____slip-ringsonthealternator.

Thepercentageofimpuritiesinaspecificfueloilsampleisdeterminedby_____.

Anadvantageofahelicalgearpumpoverasimplegearpumpisthatthehelicalgear pumpiscapableof_____.

Whichofthefollowingstatementsiscorrectconcerningheattransfer?

Amotorenclosurewhichprotectsagainstfallingliquidsisclassifiedas_____.

Thetotalpowerconsumedinaparallelcircuitis_____.

WhichisafunctionofthevoltageregulatorsusedwithACgenerators?

Ifthereliefvalveonthedischargesideofahydraulicpumpliftsthecausecould be_____.

Condensatemustbedrainedfromtheintercoolerandafter-coolersofanaircompressor because_____.

Excessivelubeoilconsumptionbyareciprocatingaircompressorcanbecausedby_____.

Anexcessivechargeofrefrigerantinanair-cooledrefrigerationsystemcancause_____.

Theenergyassociatedwithmoleculesisknownas_____.

AswitchboardforanACelectricalsystemrequirestheuseofwhichofthefollowing devices_____.

Whichofthefollowingdevicesareprotectedfrombeingmotorizedbyareverse-power relay?

WhenparallelingtwoACgeneratorsthefrequencyofthemachinecomingon-line immediatelypriortoclosingitsbreakershouldbe_____.

Electricalsupplyisalwaysneededevenifonlyforlightingsoafterashipgoesinto serviceitisextremelyrareforthemainbus-barstobedeaditthereforefollowsthat thebus-barsarecontinuouslyalive_____thelifeoftheship.

Pittinginthesuctionareasofacentrifugalpumpbronzeimpellerisusuallycaused by_____.

Whichofthemotorsforthedeviceslistedbelowisfittedwithaninstantaneousoverload relay?

Theoperationofparallelingtwoalternatorsrequiresthevoltagestobe_____andalso inphase.

Underwhichofthelistedconditionscantheengineroomretakethethrottlecontrol fromthebridge_____.

Thedifferencebetweenmeasuredanddesiredvaluesiscalled_____.

WhichofthevalveslistedisNOTconsideredtobeahydraulicsystemdirectionalcontrol valve?

WhenvoltageandcurrentdevelopedinanACcircuitreachtheirpeakvaluesatthesame timethepowerfactoris_____.

Thevacuummaintainedinthesaltwaterfeedheatershellofaflash-typeevaporator isgenerallyaccomplishedby_____.

Whichofthefollowingstatementsiscorrectconcerningtheflashpointofaliquid?

Themagneticfieldisprovidedbyelectromagnetssoarrangedthatadjacentpoleshave _____.

WhichofthelistedpumpsisNOTapositivedisplacementpump?

ThefrequencyofanACgeneratoriscontrolledbythe_____.

Whichoftheconditionslistedrepresentsthegreatesteffectofexcessfrost accumulationontheevaporatorcoils?

Whileinspectingthesteeringsystematseayoushouldcheckfor_____.

Theairchargeleavinganintercoolerorafter-coolerofanaircompressorcanbe expectedtobe_____.

Whattypeofrotorisusedinsplit-phasemotors?

Whichofthelistedstatementsiscorrectconcerningrefrigerationsystems?

Adevicewhichprintsoutapermanentrecordoftheplantoperatingconditionsisknown asthe_____.

Thetemperaturedifferentialoccurringbetweentheinlettemperatureofthefluidto becooledandtheoutlettemperatureofthecoolingmediuminashell-and-tubeheat exchangerisgreatestinwhichoftheflowdesignslisted?

Ifthesuctionpressureattherefrigerationcompressorisbelownormalthecausecan be_____.

Whichofthelistedstatementsiscorrectconcerningthestartingofcentrifugalpumps?.

Anohmmetercanbeusedtomeasure_____.

Sacrificialzincanodesareusedonthesaltwatersideofdieselengineheatexchangers to_____.

Theoilinacargowinchgearboxshouldbesampledperiodicallyto_____.

Toequalizethepowerfactoroftwoalternatorsoperatinginparallelthe_____.

Undernormalconditionstherefrigerantentersthecompressorinanoperating refrigerationsystemasa_____.

Inductanceisthepropertyofanelectriccircuitthat_____.

Theoperatingmediumforcontrolsystemsmaybe_____.

ThefrequencyofanalternatoratagivenRPMisdeterminedbythe_____.

Theliquidflowinginthecapillaryissuchthatthedifferencein_____readingstaken beforethecapillaryandafteritisrelatedtotheoilviscosity.

Whichofthefollowingconditionsmustexistforheattoflowfromoneobjecttoanother?

Excessiveoilfoaminginthecrankcaseofarefrigerationcompressorismostlikely tooccurwhenthecompressor

TheenergyconsumedbyanACmotorasstrictlyreactivepoweris_____.

Sub-coolingisamethodofreducingthetemperatureoftheliquidrefrigerantbelow its_____.

Whenairbecomestrappedinthehydraulicfluidofasteeringsystemthe_____.

AnACsynchronoustransmissiontyperemotesteeringcontrolsystemconsistsofa_____.

Whichofthefollowingstatementsrepresentsthemaindifferencebetweenarelayand acontactor.

Adeadfrontswitchboardisone_____.

Ifyouchangefromalowpourpointlubricanttoahighpourpointlubricantina refrigerationsystem_____.

Thegreatestdetrimentaleffectonidleelectricalequipmentsuchascargopumpmotors isthe_____

_____isusedtoproduceelectricpower.

Adirectcurrentpassingthroughawirecoiledaroundasoftironcoreisthedescription ofasimple_____.

Electriccircuitsareprotectedagainstoverloadsandshortcircuitsbymeansofa/an _____.

Anincreaseintheheatloadtoarefrigerationsystemwillcause_____.

_____istheactualvalueofthecontrolledcondition.

WhichofthefollowingmodesofheattransferdoesNOTrequireanyphysicalcontact betweenawarmerandacoolersubstance?

Badlyleakingrefrigerationcompressordischargevalveswillcause

Aviscosityregulatorusedforanengineisusuallyprovidedinorderto_____foran engineburningheavyfueloil.

Tothoroughlypumpoutthebilgesusingahorizontallymountedcentrifugalpumpthe _____.

Inanalternatingcurrentelectricalsystemalowsystempowerfactorisadirectsign of_____.

Whenthecurrentflowthroughacopperwireincreasesits_____.

Inamodernthree-phaseA.Csynchronousbrushlessgeneratortheexcitationwindingis ontherotorThatmeans_____.

Thecapacityofacentrifugalpumpcanbeincreasedbytheinstallationofalarger diameterimpellerAnothermeansofincreasingthepumpcapacityisto_____.

Whichofthelistedconditionswillcausethefeedwaterthathasnotflashedtovapor inthefirst-stageofaflashevaporatortoflowintothesecond-stage?

Whichofthelistedprecautionsshouldbetakenwhencleaningtheinternalsofamotor withcompressedair?

Possiblephaserelationshipsbetweenvoltageandcurrentinanalternatingcurrent circuitincludewhichofthefollowingconditions?

Iftheresistanceofacircuitiscutinhalfandtheappliedvoltageiskeptconstant thecurrentflowwillbe_____.

Reducedcapacityaccompaniedbyvibrationandnoiseatthesuctionofacentrifugal pumpisaresultof_____.

Remotecontrolmeansthat_____.

Usuallythepanelsareinterlockedwith_____sothatthedevicescanbemadedeadbefore thedoorsareopened.

Thefirstrequirementforlogicaltroubleshootingofanysystemistheabilityto_____.

Ageneratorispreventedfrombecomingmotorizedbytheuseofa/an_____.

Ifarefrigerationcompressorisrunningcontinuouslywithoutloweringthetemperature intherefrigeratedspacethetroublemaybe_____.

Themaindifferencebetweenamotorcontrolcircuitcontaininglowvoltageprotection andlowvoltagereleaseisthatthelattercontains_____.

Asemiconductorisamaterialwitha_____.

Voltagewillalwaysleadcurrentina/an_____.

Apressuredropthroughtherefrigerantliquidlinemaycause_____.

Asalinityindicatorisusedtodeterminethe_____.

Anammetershouldbeusedtomeasure_____.

AmmetersandvoltmetersusedinsinusoidalACpowersystemsindicatewhichofthe followingvaluesofthewaveformsmeasured?

Inarefrigerationsystemfoamingofthecrankcaseoilmaycausethe_____.

Electricinsulationismadeoforganicsubstancesandsogradually_____withage.

Thecomponentofarefrigeratingsysteminwhichtherefrigerantvaporizesandabsorbs heatisknownasthe_____.

Adirtyintercooleronanaircompressorwillcause_____.

AswitchboardforaACelectricaldistributionsystemwillbeprovidedwithwhich ofthefollowingcomponents_____.

Theelectrolyteinalead-acidstoragebatteryconsistsofdistilledwaterand_____.

PriortoclosingthebreakerwhenparallelingtwoACgeneratorstherecommended practiceistohavethefrequencyoftheincomingmachine_____.

ThepowerfactorofanACgeneratoroperatingsingularlyisdeterminedbythe_____.

Theprimaryfunctionofanelectricmotoristo_____.

Brushlessgeneratorsaredesignedtooperatewithouttheuseof_____.