The clearance volume for a single stage compressor is defined as the space created between the _____.

所属题库:二管轮
答案:Theclearancevolumeforasinglest...
题目介绍: Theclearancevolumeforasinglestagecompressorisdefinedasthespacecreated betweenthe_____., top of the piston and bottom side of head, with the piston at BDC?piston and head, including the space around the piston to the top of the upper ringand under the valves, with the piston at TDC?bottom of the piston and bottom side of the head at TDC, regardless of upper ringlocation and valve placement?top of the piston and bottom side of the head at TDC as compared to that which existsbetween the top of the piston and bottom side of head at BDC? 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
  • 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.
  • Underwhichofthelistedconditionscantheengineroomretakethethrottlecontrol fromthebridge_____.
  • Rotationofthesteeringwheelonthenavigationbridgeinitiatesoilpressurebeing appliedtothesteeringgearramsby_____.
  • Thedifferencebetweenmeasuredanddesiredvaluesiscalled_____.
  • WhichofthevalveslistedisNOTconsideredtobeahydraulicsystemdirectionalcontrol valve?
  • Dirtshouldnotbeallowedtocontaminateagreaselubricantbecausethe_____.
  • Thevacuummaintainedinthesaltwaterfeedheatershellofaflash-typeevaporator isgenerallyaccomplishedby_____.
  • Whichofthefollowingstatementsiscorrectconcerningtheviscosityoflubricating oil?
  • Whichofthefollowingstatementsiscorrectconcerningtheflashpointofaliquid?
  • Whenthedesiredrudderangleisattainedbyatypicaldoublemmelectro-hydraulic steeringgearthe_____.
  • Themagneticfieldisprovidedbyelectromagnetssoarrangedthatadjacentpoleshave _____.
  • WhichofthelistedpumpsisNOTapositivedisplacementpump?
  • Ifarefrigerationcompressorisshortcyclingonhighheadpressureyoushould_____.
  • Onedistinctadvantageofflashtypeevaporatorsascomparedtomostotherevaporators isthatinaflashevaporator_____.
  • Theviscosityofanoilisameasureofits_____.
  • Whichoftheconditionslistedrepresentsthegreatesteffectofexcessfrost accumulationontheevaporatorcoils?
  • Whileinspectingthesteeringsystematseayoushouldcheckfor_____.
  • Theairchargeleavinganintercoolerorafter-coolerofanaircompressorcanbe expectedtobe_____.
  • Moistureisremovedfromarefrigerationsystemby_____.
  • Whattypeofrotorisusedinsplit-phasemotors?
  • Whichofthelistedstatementsiscorrectconcerningrefrigerationsystems?
  • Adevicewhichprintsoutapermanentrecordoftheplantoperatingconditionsisknown asthe_____.
  • 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?
  • Whichofthelistedprecautionsshouldbetakenwhencleaningtheinternalsofamotor withcompressedair?
  • Operatingarotarypumpatspeedsinexcessofdesignrequirementscouldcause_____.
  • Reducedcapacityaccompaniedbyvibrationandnoiseatthesuctionofacentrifugal pumpisaresultof_____.
  • Remotecontrolmeansthat_____.
  • WhenarefrigerationcompressormotorfailstostarttheFIRSTthingthatshouldbe checkedforisa_____.
  • Usuallythepanelsareinterlockedwith_____sothatthedevicescanbemadedeadbefore thedoorsareopened.
  • Thefirstrequirementforlogicaltroubleshootingofanysystemistheabilityto_____.
  • Whenitisnecessarytoopenarefrigerationsystemforrepairsandthesystemwill beopenformorethanafewminutestheopenendsofthesystemshouldbe_____.
  • Ifarefrigerationcompressorisrunningcontinuouslywithoutloweringthetemperature intherefrigeratedspacethetroublemaybe_____.
  • Themaindifferencebetweenamotorcontrolcircuitcontaininglowvoltageprotection andlowvoltagereleaseisthatthelattercontains_____.
  • Ifonehydraulicpumpofanelectro-hydraulicsteeringunitfallsthevesselssteering canbeinitiallyandbestmaintainedbyusingthe_____.
  • Apressuredropthroughtherefrigerantliquidlinemaycause_____.
  • Asalinityindicatorisusedtodeterminethe_____.
  • Whichofthefollowingstatementsdescribesthefunctionsofareservoirusedina hydraulicsystem?
  • AmmetersandvoltmetersusedinsinusoidalACpowersystemsindicatewhichofthe followingvaluesofthewaveformsmeasured?
  • Airblowingfromtheintakeairfilterofanoperatingaircompressorindicates______.
  • Inarefrigerationsystemfoamingofthecrankcaseoilmaycausethe_____.
  • Anaircompressorcanbeunloadedatstart-upby_____.
  • Electricinsulationismadeoforganicsubstancesandsogradually_____withage.
  • Thecomponentofarefrigeratingsysteminwhichtherefrigerantvaporizesandabsorbs heatisknownasthe_____.
  • Adirtyintercooleronanaircompressorwillcause_____.
  • Whichoftheproblemslistedrepresentsthemajordifficultyencounteredwiththermal expansionvalveoperation?
  • Theelectrolyteinalead-acidstoragebatteryconsistsofdistilledwaterand_____.
  • Brushlessgeneratorsaredesignedtooperatewithouttheuseof_____.
你可能感兴趣的试题