Anchor _____ are used in some installations where the cable lifter rotates about a vertical axis.

Whichoftheconditionslistedwillcausearefrigerationcompressortorunconstantly withoutsimultaneouslydecreasingthetemperatureintherefrigeratedspace?

Intheoperationofaflashtypeevaporatorequippedwithairejectorstheairand non-condensablegasesareevacuateddirectlyfromthe_____.

Theclearancevolumeforasinglestagecompressorisdefinedasthespacecreated betweenthe_____.

Whichofthefollowingstatementsistrueconcerninganyevaporator?.

Thepercentageofimpuritiesinaspecificfueloilsampleisdeterminedby_____.

Anadvantageofahelicalgearpumpoverasimplegearpumpisthatthehelicalgear pumpiscapableof_____.

Itispossibletomountadoublesuctioncentrifugalpumpimpellerwiththevanesfacing inthewrongdirectionThiswouldcausethepump_____.

Theonlymeansofremovingthelatentheatofcondensationfromarefrigerantinthe normalrefrigerationcycleisby_____.

Condensatemustbedrainedfromtheintercoolerandafter-coolersofanaircompressor because_____.

Excessivelubeoilconsumptionbyareciprocatingaircompressorcanbecausedby_____.

Anincreaseinrotorclearancesinarotarypumpwill_____.

Increasedinternalleakageinadditiontopoorhydraulicsystemresponseand inadequatelubricationistheresultof_____.

Theenergyassociatedwithmoleculesisknownas_____.

Aircompressorreceiversshouldbeblowndownatleast_____.

Whichofthelistedoperatingconditionswouldhavethegreatesteffectonthe volumetricefficiencyofanoperatingreciprocatingaircompressor?

Adistinguishingfeatureofaneducatorwhencomparedtootherpumpsisthe_____.

Whichofthefilter/strainerunitslistedpermitsyoutocleantheelementwhileleaving thesystemontheline?

Whichofthefollowingproblemscouldcauseairtoblowoutthroughtheinletairfilter ofarunningcompressor?.

Rotationofthesteeringwheelonthenavigationbridgeinitiatesoilpressurebeing appliedtothesteeringgearramsby_____.

WhichofthevalveslistedisNOTconsideredtobeahydraulicsystemdirectionalcontrol valve?

Dirtshouldnotbeallowedtocontaminateagreaselubricantbecausethe_____.

Thevacuummaintainedinthesaltwaterfeedheatershellofaflash-typeevaporator isgenerallyaccomplishedby_____.

Thefunctionofthehydraulictelemotortransmitterusedinanelectro-hydraulic steeringgearsystemisto_____.

Whichofthefollowingstatementsiscorrectconcerningtheviscosityoflubricating oil?

Thepurposeofthelowpressurecut-outswitchisto_____.

Whichofthefollowingstatementsiscorrectconcerningtheflashpointofaliquid?

Whenthedesiredrudderangleisattainedbyatypicaldoublemmelectro-hydraulic steeringgearthe_____.

Ifananchorwindlasshasbeenidleforsometimeyoushould_____.

Ifarefrigerationcompressorisshortcyclingonhighheadpressureyoushould_____.

Onedistinctadvantageofflashtypeevaporatorsascomparedtomostotherevaporators isthatinaflashevaporator_____.

Theviscosityofanoilisameasureofits_____.

Whichoftheconditionslistedrepresentsthegreatesteffectofexcessfrost accumulationontheevaporatorcoils?

Priortolightingoffacoldautomaticallyfiredauxiliaryboileryonshould_____.

Theairchargeleavinganintercoolerorafter-coolerofanaircompressorcanbe expectedtobe_____.

Morethanonestageofevaporationcantakeplacebyadmittingtheseawaterinto chamberswithprogressively_____pressureintheflashevaporator.

Moistureisremovedfromarefrigerationsystemby_____.

Inanelectro-hydraulicsteeringgearsystemwhenwillthevariabledisplacementpump beplacedonstroke?

Whichofthefollowingstatementsistrueconcerningtheoverallefficiencyofair compressors?

Whichofthelistedstatementsiscorrectconcerningrefrigerationsystems?

Becauseofthereduced_____inthedistillationsystemsomeoftheseawaterboils asitflowsthroughthetubesoftheevaporator.

Thefreshwatergeneratorproducesfreshwater_____.

Whichofthelistedstatementsiscorrectconcerningthestartingofcentrifugalpumps?.

_____shouldbetestedandadjustedwhentheboilersurveyiscarriedout.

Scaleaccumulationonevaporatorheatexchangesurfaces_____.

Thevalvebestsuitedforthrottlinggasorliquidflowinapipelineisthe

Sedimentcollectsinatubularpurifier_____.

Whichofthelistedproblemscouldproduceahighabsolutepressurewithinaflashtype evaporator?

Undernormalconditionstherefrigerantentersthecompressorinanoperating refrigerationsystemasa_____.

Onallvesselsequippedwithrefrigerationunitsofover20cubicfootcapacity_____.

Inavacuumdistillationsystemthecaseisthehigherthepressure_____.

Anun-loaderisinstalledonanaircompressorto_____.

Whatisafunctionofthewearingringsusedinmostcentrifugalpumps?

Theaccumulationofairandothernon-condensablegasesinarefrigerationsystemwill _____.

Whichofthefollowingconditionsmustexistforheattoflowfromoneobjecttoanother?

WhichofthefollowingstatementsaboutpumpoperationsisNOTacorrectstatement?

Acentrifugalbilgepumprequirespriming_____.

Whichofthefollowingproblemswouldbetheprobablecauseforthefaultyoperation ofareciprocatingaircompressorsuctionvalve?

Excessiveoilfoaminginthecrankcaseofarefrigerationcompressorismostlikely tooccurwhenthecompressor

Acrackeddiaphragminathermostaticexpansionvalvewillcausethevalveto_____.

Sub-coolingisamethodofreducingthetemperatureoftheliquidrefrigerantbelow its_____.

Whenairbecomestrappedinthehydraulicfluidofasteeringsystemthe_____.

AnACsynchronoustransmissiontyperemotesteeringcontrolsystemconsistsofa_____.

Differentialpressurescanbemeasuredwiththeuseofa_____.

Ifoildensityweregreaterthanwater’stheoilseparator_____.

Ifyouchangefromalowpourpointlubricanttoahighpourpointlubricantina refrigerationsystem_____.

Distilledwaterfromanevaporatormaybedischargedintoapotablewatertank_____.

Whenthereisnomovementoftheramsonanelectro-hydraulicsteeringgearthetilting boxoftherunningpumpis_____.

Theusualnumberofsingle-actingpistonsusedinavariablestrokeaxial-pistonpump is_____.

Theratiooftheweightofmoisturecontainedinagivenvolumeofairtotheweight ofmoisturethatthesamesamplewouldholdifsaturatediscalledthe.

AlubeoilfiltercanbeusedtoremovemostcontaminantsfromlubeoilAcontaminant whichwillremaininthelubeoilafterfilteringis_____.

Forsafestoragethemaximumallowabletemperaturetowhichrefrigerantbottlesshould beexposedis_____.

Anincreaseintheheatloadtoarefrigerationsystemwillcause_____.

Whichoftheproblemslistedcouldbeindicatedifasightglassintherefrigerant liquidlineisfullofbubbles?.

Thepressureheadofawaterpumpisgivenintheunitof_____.

WhichofthefollowingmodesofheattransferdoesNOTrequireanyphysicalcontact betweenawarmerandacoolersubstance?

Ifanelectricmotordrivenaircompressorfailstostartitmaybeduetoa_____.

Tothoroughlypumpoutthebilgesusingahorizontallymountedcentrifugalpumpthe _____.

Whichofthelistedconditionswillcausethefeedwaterthathasnotflashedtovapor inthefirst-stageofaflashevaporatortoflowintothesecond-stage?

Operatingarotarypumpatspeedsinexcessofdesignrequirementscouldcause_____.

Reducedcapacityaccompaniedbyvibrationandnoiseatthesuctionofacentrifugal pumpisaresultof_____.

WhenarefrigerationcompressormotorfailstostarttheFIRSTthingthatshouldbe checkedforisa_____.

Whenitisnecessarytoopenarefrigerationsystemforrepairsandthesystemwill beopenformorethanafewminutestheopenendsofthesystemshouldbe_____.

Ifarefrigerationcompressorisrunningcontinuouslywithoutloweringthetemperature intherefrigeratedspacethetroublemaybe_____.

Anoilwatermonitorisrequiredinordertomeasure_____.

Ifonehydraulicpumpofanelectro-hydraulicsteeringunitfallsthevesselssteering canbeinitiallyandbestmaintainedbyusingthe_____.

Whichofthefollowingstatementsdescribesthefunctionsofareservoirusedina hydraulicsystem?

Whichofthefollowingfactorswillhavethegreatesteffectontheheatingloadwithin aconditionedspace?

Saltwateristypicallyprovidedtoarefrigerationsystemto_____.

Whichfeaturesofacentrifugalpumpreducetheneedforrenewingwornimpellersand pumpcasings?

Airblowingfromtheintakeairfilterofanoperatingaircompressorindicates______.

Thegearscrewandvanepumpsareallclassifiedas_____.

Intheproductionoffreshwaterfromseawaterthroughaprocessofheatingandcooling thecoolingphaseofproductionisusuallycalled_____.

Inarefrigerationsystemfoamingofthecrankcaseoilmaycausethe_____.

Anaircompressorcanbeunloadedatstart-upby_____.

Thecomponentofarefrigeratingsysteminwhichtherefrigerantvaporizesandabsorbs heatisknownasthe_____.

Adoublesuctioncentrifugalpumpimpellerhasbeeninstalledinthereversedirection andwill_____.

Adirtyintercooleronanaircompressorwillcause_____.

Whichoftheproblemslistedrepresentsthemajordifficultyencounteredwiththermal expansionvalveoperation?

Propercombustioninaboilerwouldbeindicatedby_____.

Apumpissaidtohavenegativesuctionheadwhenthepumpislocated_____.