The static suction lift of a pump is the difference in elevation between the _____.
所属题库：二管轮
题目介绍:
Thestaticsuctionliftofapumpisthedifferenceinelevationbetweenthe_____.,
centerline of the pump and the level of the liquid in the suction well when the sourceof liquid is below the pump?centerline of the pump and the suction liquid level when the source of liquid is abovethe pump?centerline of the pump and the level of the discharge liquid?liquid levels of the suction and discharge? 本题为最佳选择题收录于二管轮题库中。
注意事项：
本内容均收集于互联网，版权等归原权属方所有,仅供网友学习交流,未经权属方书面授权,请勿作他用. 若发现本图侵犯了您的权益,请联系我们快速处理,感谢您对互联网分享方式的理解与配合。
相似内容
-
Theclearancevolumeforasinglestagecompressorisdefinedasthespacecreated betweenthe_____.
-
TheseparatesuppliesareconnectedineitherstarordeltaformationThestarformation ismostcommonlyusedandrequires_____slip-ringsonthealternator.
-
Thepercentageofimpuritiesinaspecificfueloilsampleisdeterminedby_____.
-
Anadvantageofahelicalgearpumpoverasimplegearpumpisthatthehelicalgear pumpiscapableof_____.
-
Whichofthefollowingstatementsiscorrectconcerningheattransfer?
-
Ifthereliefvalveonthedischargesideofahydraulicpumpliftsthecausecould be_____.
-
Condensatemustbedrainedfromtheintercoolerandafter-coolersofanaircompressor because_____.
-
Excessivelubeoilconsumptionbyareciprocatingaircompressorcanbecausedby_____.
-
Anexcessivechargeofrefrigerantinanair-cooledrefrigerationsystemcancause_____.
-
Anincreaseinrotorclearancesinarotarypumpwill_____.
-
Increasedinternalleakageinadditiontopoorhydraulicsystemresponseand inadequatelubricationistheresultof_____.
-
Theenergyassociatedwithmoleculesisknownas_____.
-
Whichofthelistedoperatingconditionswouldhavethegreatesteffectonthe volumetricefficiencyofanoperatingreciprocatingaircompressor?
-
Adistinguishingfeatureofaneducatorwhencomparedtootherpumpsisthe_____.
-
Electricalsupplyisalwaysneededevenifonlyforlightingsoafterashipgoesinto serviceitisextremelyrareforthemainbus-barstobedeaditthereforefollowsthat thebus-barsarecontinuouslyalive_____thelifeoftheship.
-
Pittinginthesuctionareasofacentrifugalpumpbronzeimpellerisusuallycaused by_____.
-
Whichofthefilter/strainerunitslistedpermitsyoutocleantheelementwhileleaving thesystemontheline?
-
Whichofthefollowingproblemscouldcauseairtoblowoutthroughtheinletairfilter ofarunningcompressor?.
-
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_____.
-
Inanelectro-hydraulicsteeringgearsystemwhenwillthevariabledisplacementpump beplacedonstroke?
-
Whichofthefollowingstatementsistrueconcerningtheoverallefficiencyofair compressors?
-
Whichofthelistedstatementsiscorrectconcerningrefrigerationsystems?
-
Thetemperaturedifferentialoccurringbetweentheinlettemperatureofthefluidto becooledandtheoutlettemperatureofthecoolingmediuminashell-and-tubeheat exchangerisgreatestinwhichoftheflowdesignslisted?
-
Ifthesuctionpressureattherefrigerationcompressorisbelownormalthecausecan be_____.
-
Whichofthelistedstatementsiscorrectconcerningthestartingofcentrifugalpumps?.
-
Sacrificialzincanodesareusedonthesaltwatersideofdieselengineheatexchangers to_____.
-
Theoilinacargowinchgearboxshouldbesampledperiodicallyto_____.
-
Scaleaccumulationonevaporatorheatexchangesurfaces_____.
-
Thevalvebestsuitedforthrottlinggasorliquidflowinapipelineisthe
-
Undernormalconditionstherefrigerantentersthecompressorinanoperating refrigerationsystemasa_____.
-
Anun-loaderisinstalledonanaircompressorto_____.
-
Theoperatingmediumforcontrolsystemsmaybe_____.
-
Theliquidflowinginthecapillaryissuchthatthedifferencein_____readingstaken beforethecapillaryandafteritisrelatedtotheoilviscosity.
-
Theaccumulationofairandothernon-condensablegasesinarefrigerationsystemwill _____.
-
Whichofthefollowingconditionsmustexistforheattoflowfromoneobjecttoanother?
-
WhichofthefollowingstatementsaboutpumpoperationsisNOTacorrectstatement?
-
Whichofthefollowingproblemswouldbetheprobablecauseforthefaultyoperation ofareciprocatingaircompressorsuctionvalve?
-
Excessiveoilfoaminginthecrankcaseofarefrigerationcompressorismostlikely tooccurwhenthecompressor
-
Acrackeddiaphragminathermostaticexpansionvalvewillcausethevalveto_____.
-
Sub-coolingisamethodofreducingthetemperatureoftheliquidrefrigerantbelow its_____.
-
Whenairbecomestrappedinthehydraulicfluidofasteeringsystemthe_____.
-
AnACsynchronoustransmissiontyperemotesteeringcontrolsystemconsistsofa_____.
-
Differentialpressurescanbemeasuredwiththeuseofa_____.
-
Ifyouchangefromalowpourpointlubricanttoahighpourpointlubricantina refrigerationsystem_____.
-
Distilledwaterfromanevaporatormaybedischargedintoapotablewatertank_____.
-
_____isusedtoproduceelectricpower.
-
Whenthereisnomovementoftheramsonanelectro-hydraulicsteeringgearthetilting boxoftherunningpumpis_____.
-
Theratiooftheweightofmoisturecontainedinagivenvolumeofairtotheweight ofmoisturethatthesamesamplewouldholdifsaturatediscalledthe.
-
AlubeoilfiltercanbeusedtoremovemostcontaminantsfromlubeoilAcontaminant whichwillremaininthelubeoilafterfilteringis_____.
-
Forsafestoragethemaximumallowabletemperaturetowhichrefrigerantbottlesshould beexposedis_____.
-
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.
-
Whenitisnecessarytoopenarefrigerationsystemforrepairsandthesystemwill beopenformorethanafewminutestheopenendsofthesystemshouldbe_____.
-
Ifarefrigerationcompressorisrunningcontinuouslywithoutloweringthetemperature intherefrigeratedspacethetroublemaybe_____.
-
Ifonehydraulicpumpofanelectro-hydraulicsteeringunitfallsthevesselssteering canbeinitiallyandbestmaintainedbyusingthe_____.
-
Apressuredropthroughtherefrigerantliquidlinemaycause_____.
-
Asalinityindicatorisusedtodeterminethe_____.
-
Whichofthefollowingstatementsdescribesthefunctionsofareservoirusedina hydraulicsystem?
-
Saltwateristypicallyprovidedtoarefrigerationsystemto_____.
-
Whichfeaturesofacentrifugalpumpreducetheneedforrenewingwornimpellersand pumpcasings?
-
Airblowingfromtheintakeairfilterofanoperatingaircompressorindicates______.
-
Inarefrigerationsystemfoamingofthecrankcaseoilmaycausethe_____.
-
Anaircompressorcanbeunloadedatstart-upby_____.
-
Electricinsulationismadeoforganicsubstancesandsogradually_____withage.
-
Thecomponentofarefrigeratingsysteminwhichtherefrigerantvaporizesandabsorbs heatisknownasthe_____.
-
Adirtyintercooleronanaircompressorwillcause_____.
-
Whichoftheproblemslistedrepresentsthemajordifficultyencounteredwiththermal expansionvalveoperation?
-
Brushlessgeneratorsaredesignedtooperatewithouttheuseof_____.
你可能感兴趣的试题
- Whensubjectedtohighheatfromaopenflameoranelectricheatingelementwhich ofthelistedrefrigerantswillbreakdownandproducephosgenegas?
- Theunloadingsystemonanaircompressorwill_____.
- Thepurposeofanaircompressorunloadingdeviceisto_____.
- UMSstandsfor_____.
- Somechloronatedflourocarbonrefrigerantsmaydecomposeintoatoxicirritatinggas ifitis_____.
- Onecauseofhighheadpressureoccurringinarefrigerationsystemcanbe_____.
- Whichofthefollowingstatementsiscorrectrelativetodistillationplantoperation?
- Ifarefrigerationcompressorwereshortcyclingonthelowpressurecutoutswitch theprobablecauseforthismightbethe______.
- Whichofthedeviceslistediscommontoalltypesofpumps?
- Ammoniawhenusedasarefrigerantisvaluablebecauseofitshighefficiencyitis however_____.
- Movementofthediaphragmorbellowsis_____byalinkagetoaneedleorpointerdisplay toindicatethedifferentialpressurebetweentwosidesofthediaphragmorbellows.
- Whichofthefollowingstatementsconcerningenergyiscorrect?
- Theoperationof_____twoalternatorsrequiresthevoltagestobeequalandalsoin phase.
- Whenoperatingwithanegativesuctionheadwhichofthefollowingtypesofpumpswill requirepriming?
- Ifyouaregiventhejobofaddinghydraulicfluidtoamooringwinchandarenotcertain astothetypeoffluidtouseyoushould_____.
- Airtrappedinthehydraulicfluidofasteeringsystemshouldbeindicatedby_____.
- Comparedtoaconstantpitchpropelleracontrollablepitchpropeller_____.
- Airlinelubricatorsareusedincompressedairsystemstolubricate_____.
- Whichofthefollowingstatementsistrueconcerningcentrifugalpumps?
- Theemergencygeneratororemergencybatteryisconnectedto_____onmostlargeships.
- Whichofthefollowingcentrifugalpumpcomponentsconvertstheliquidkineticenergy ofvelocitytothepotentialenergyofpressure?
- _____isamachinebywhichelectricalenergyistransformedintomechanicalenergy.
- _____handleandinstrumentsareonthefront.
- Whenrefrigerantleavesthereceiveritflowsnextontothe_____.
- Whichofthefollowingbestdescribesthethermodynamiceffectonthepressureand volumerelationshipwithregardstosaturatedgases?
- Thealternatingcurrentgeneratorsupplyingaloadhasavoltagedropresultedfrom theloadWhentheloadhasalaggingpowerfactorthisvoltagedrop_____.
- Hydrauliccranesmustbeproperlywarmed-upbeforebeingoperatedbecause_____.
- Brinedensityinadistillingplantismeasuredwitha/an_____.
- Thermalenergyintransitionisalsoreferredtoas_____.
- Whennormaloperatingpressureisappliedtothehydraulicoilusedinahigh-pressure systemtheoil_____.
- Thestarformationismostcommonlyusedandrequires_____onthealternator.
- AcentrifugalpumpproducesflowwitharesultingdischargeheadbyenergyconversionIt istypicalfortheenergyconversiontofollowtheorderof_____.
- Ifacentrifugalbilgepumpwerecontinuallyoperatedwiththedischargevalveclosed the_____.
- Whichofthefollowingstatementsiscorrectconcerningatypicalshipboardmulti-coil refrigerationsystem?
- WhichoftheproblemslistedwouldcamethedischargetemperatureofanR-12 refrigerationcompressortoincrease?
- Whichofthefollowingtermscouldbeappliedtothesimpledefinitiontheenergyof motion?
- Moistureintherefrigerantmay_____.
- Whichofthefollowingstatementsdescribestherelationshipbetweenflashpointand ignitiontemperature?
- Thermostaticexpansionvalvescanbeadjustedfor_____.
- Thefunctionoflubricatingoilisto_____.
- Theprincipalpurposeofsub-coolingliquidrefrigerantpriortoitsenteringthe expansionvalveisto_____.
- Inanelectro-hydraulicsteeringsystemundermovementismaintainedinclose synchronizationwiththesteeringwheelpositionbymeansofthe_____.
- Thesensibleheatofairisdependentuponthe_____.
- Theprimaryreasonlowpressureevaporatorsproducedistillatemoreefficientlyand withlessscaleformationthanhighpressureevaporatorsis_____.
- Onsmalllowpressureaircompressorsthecylindersareusuallylubricatedbythe _____.
- Ifyouwereoperatingacentrifugalwaterservicepumpwithwornwearingringsthe _____.
- Refrigerantentersthecondenserasa_____.
- Thepowerfactorisameasureofthephasedifferencebetweenvoltageandcurrentand isexpressedasthe_____ofthephaseangle.
- Thedeliveryrateofavariablestrokeaxialpistonhydraulicpumpiscontrolledby varyingthepositionofthe_____.
- Anindependentbilgesuctionisrequiredfor_____.
- Toabsorbthewearresultingfromimpellerrotationandabrasivesintheliquida centrifugalpumpisusuallyfittedwith_____.
- Ifaliquidsightflowindicatorinarefrigerationsystemshowsgasbubblesinmotion passinginsideoftheglassthereis_____.
- Thetemperatureofarefrigerantgasisthehighest_____.
- Ifalargedifferenceexistsbetweenthecompressordischargepressureandthepressure correspondingtotheexistingcondensingtemperatureinarefrigerationsystemyou should_____.
- Powerisdefinedasthe_____.
- Propellerpitchspeedminusshipspeeddividedbythepropellerpitchspeedistermed _____.
- Whenthepropellerbladesareintegralwiththehubthepropelleriscalleda_____.
- Acentrifugalpumpattemptingtodevelopflowagainstacloseddischargevalvehasa/an _____.
- Whichofthelistedcharacteristicsoflubeoilarethemostimportanttotheengineer fromanoperationalstandpoint?
- Foamingoftheoilinarefrigerationcompressorcrankcaseiscausedby_____.
- gaugepressuremeans_____.
- Excessivelylowairpressureoccurringintheintercoolerofareciprocatingair compressoriscausedby_____.
- Ifarefrigerationsystemcompressorcrankcaseissweatingyoushould_____.
- Thesuction-forceprincipleofoperationisatypicalcharacteristicof_____.
- Iftheelectricmotordrivinganaircompressorfailstostartthecausemaybea_____.
- Ontankvesselsequippedwithpoweroperatedcargotankvalvesthetypeofpower operatormostcommonlyusedis_____.
- Thesuddenreductionofpressureoccurringwithinthecrankcaseofarefrigeration compressorduringstartingcausesthe_____.
- Arefrigerantwithoilinsolutionhasa_____.
- Increasingthespeedofacentrifugalpumpwillresultinanincreaseinits capacityAnothermeansofincreasingthecapacityofacentrifugalpumpistoincrease the_____.
- R-12isgenerallyconsideredtobeasafenontoxicnonflammableandnon-explosive refrigerantItcanhoweverbecomehighlytoxicwhen_____.
- _____controlsystemisoneinwhichthecontrolactionisindependentoftheoutput.
- Airenteringanair-cooledrefrigerationsystemisindicatedby_____.
- Excessiveoilfoaminginthecrankcaseofarefrigerationcompressorcanresultin_____.
- Thisarrangementis_____iftheelementsaredirectlyconnectedtooneanotherand thecontrolactiontakesplacewithouthumaninvolvement.
- AnaxialpistonvariablestrokepumpisusedinavesselshydraulicsteeringgearUnder pressureoilcontinuallyleaksoutfrombetweenthevalveplate/cylinderbarreland will_____.
- Whichofthefollowingproblemscouldcausethehighpressurecutoutswitchtoshut downthecompressorinarefrigerationsystem?
- Whenthereliefvalveopensitdischargeshighpressurerefrigerantvaportothe_____.
- Whichbearingwillcarrytheloadontwosmallpointsdiametricallyoppositetoeach other?
- Therateofheattransferfromahotregiontoacoldregionisaffectedmostbythe _____.
- The_____isameasureofthephasedifferencebetweenvoltageandcurrentandis expectedasthecosineofphaseangle.
- Thesteamcoilsinahighpressureevaporatorusedforsaltwaterserviceshouldbe de-scaledwith_____.
- Whichoftheprocesseslistedconsumesthegreatestamountofpowerwhileproducing thegreatestamountofheat?.
- Refrigerantiscirculatedthrougharefrigerationsystembythe_____.
- Thestar-deltastarterisaneffectivemethodof_____voltagestartingofamotor.
- Thesimplestmethodtousefordeterminingifacentrifugalpumpisoperatingasdesigned isto_____.
- Avacuumisinitiallycreatedinaflashtypedistillingplantby_____.
- Tubeleaksinthedistillatecoolerofatwostageflashevaporatorwillresultin_____.
- Aninternalbypassisprovidedonsomehydraulicsystemsuctionstrainerstohelpreduce thepossibilityof_____.
- Lessscaleformationoccursinaflashevaporatorthaninasubmergedtubeevaporator because_____.
- Shorepowermustbe_____duringdockrepair.
- _____isprovidedtoalternatorsintheeventofprimemoverfailuretoensurethat thealternatordoesnotactasamotor.
- Whichofthelistedcomponentsisconsideredtoseparatethehighpressuresideofa refrigerationcyclefromthelowpressuresideofthecycle?
- Thelowesttemperaturerequiredtocauseself-sustainedcombustionofasubstance independentofanyoutsidesourceofignitioniscalled_____.
- Sluggishresponseoractionofthehydraulicactuatorsmaybearesultof_____.
- Onwhichofthefollowingheatedsurfacesofaflashtypeevaporatorwouldyoubemore likelytofindsoftscaleformation?.
- Themovementofheatwithinafluidcausedbytheapplicationofthermalenergyis called_____.
- Themajorsourceofchemicalcontaminantsinhydraulicfluidis_____.
- Whichoftheconditionslistedwillcausearefrigerationcompressortorunconstantly withoutsimultaneouslydecreasingthetemperatureintherefrigeratedspace?
- Intheoperationofaflashtypeevaporatorequippedwithairejectorstheairand non-condensablegasesareevacuateddirectlyfromthe_____.
- MoistureinaD.Cmotorwouldcause_____.