电力职称英语考试单项选择汇总

第第页电力职称英语考试单项选择汇总Passage4Powerplant

Accordingtothemodeofenergy……ofcapacityshouldnotexceedtwo.

1.√Baonenergyconversion,powerplantsaredividedintomorethan7categories.

2.×Apowerplanttriestotransformenergysourceintoelectricpower.

3.√Thepowerplantgeneratingelectricityandsupplyingsteamiscalledaco-generationplant.

4.×Apowernetplanforshortandmediumtermisoneoffactorsinlectingasite.thestrokes

5.√Twoimportantfactorsforanewplantplanarefuelsupplyandashdisposal.

become的意思6.×Environmentalprotectionislessconsideredinbuildinganewpowerplant.

7.×Watersourcesandtransportationconditionsarenotneededtoconsiderinlectinganewsite.

8.√Thetotalcapacityinanewlyscheduledplantarrangesfrom1200MWto3600MW.

9.×Thenumberofunitsexceedsmorethansix.

10.√Theranksofcapacityshouldbelimitedwithintwo.

Passage13Australia

Australiaisavastcontinent……,ifnotmonths.

1.×Australiaisalargecountryandhasarelativellargepopulation

2.√ThemajorityofpeoplelivinginAustraliaarecitydwellers

3.×Thedeliveryofeducationrvicestopeoplelivinginremoteareasisunimaginableforalmostacentury

4.√Theattempttoprovideeducationalrvicestodistantdwellersdidnottakeplaceuntil1916

5.×Theschoolworkwasdeliveredandreturnedthroughaledroads,regularbusroutesandairrvicesinthebeginning

Passage18Theobamaadministration’sbankrescueproposal

Amongthecriticismsoftheobamaadministration’sbankrescueproposal……ofusshouldfollow.

1.×Theobamaadministration’sbankrescueproposaliscriticizedbecautheamountofmoneyistoohuge.

2.×Theword"float"(para.3)means"tomovewithoutanaim".

3.√Accordingtotheauthor,ordinaryAmericansdon’thavemuchcashthedays.

4.×Thebailoutplanissocomplexandriskythattheworld’smajorbanksutterlymisjudgedthem.

5.√Thelastparagraphindicatesthatthebaioutplanneedssupportfrombiginvestors.

Passage14Biomass

Biomassisacost-effectivesourceofenergy.……ofrenewableenergy.

1.√Asasourceofenergy,biomasscanbringthebestpossibleprofitsforthelowestpossiblecosts

2.√Oneoftheadvantagesofusingbiomassisthatitisaconvenientmediumtostoreenergy

3.×Biomassdoesn’tproduceenoughcarbondioxideandisharmlesstotheenvironment.

4.√Despiteitsadvantages,biomassisnotsuitableforcommercialuscs

5.×Onlytreesandcropscanbeudasbiomass-fuels.

Passage10Electricity

Electricitymaybedangerous.……himawayfromthepower.

1.×Electricityisnotdangerousaspeoplethink.

2.×Drywoodcancarryelectricitytotheground.

3.√Conductorslikemetalorwatercancarryelectricitytotheground.

4.×Humanbodyisagoodconductorbecauithas90%waterinthebody.

5.√Youcanuahairdryerfarfrombathandwater.

6.√Wehandsaregoodconductorsfortransmittingelectricity.

7.√Thebesttooltopushashockedpersonawayfromthepoweristouanon-conductor.

模拟测试3-2

Forcenturies,inthecountries……LandoftheWhiteElephant.

Today,however,thestory……verylownationalpriority.

Howthisreversalfrom……butsure-footedelephant.

By1950theelephantpopulation……abeastofburdendeclined.

1.WhatcanweknowaboutAfricanelephantsfromthepassage?B.it…hard…

2.Thailandwasoncecalled“LandoftheWhiteElephant”becau＿B.white…1920s＿＿＿.

3.WhyistheThaielephant“outofwork”,accordingtotheauthor?A.bec…owners

4.Whichofthefollowingstatementsistrueabouttheelephantpopulationatvarioustimes?D.Today(150)

5.Thepassageismostprobablyfrom＿C.a…report＿＿＿.

Passage9Businessandrisks

Marxoncequotedafamoussayingin……iswrittenbyCarlMarx.

1.√TheworkCapitdismiswrittenbyCarlMarx.

2.×For20%profit,capitalwilltakerisks.

3.√For100%,capitaldarestobreakanyhumanlaws.

4.×For200%,capitaldarestocommitanycrimeandevenrisksbeinghanged.

5.√Thepursuitofprofitsforceshumanbeingstotakeanyrisks.

6.×Thepursuitofprofitismuchmoreencouragedthanthepursuitoffriendship.

7.√TherearetwoownershipsexistinginChineeconomy.

8.×Onlybrightmanufacturerormanagercanpredictthefutureofhisenterpris.

Passage15Nuclearradiation

Nuclearpower’sdangertohealth,.……byitsgrandparents.

1.√Themysteryaboutnuclearradationmaycomefromthefactthatitcannotbedetectedbyhumanns

2.×Wecannotnradioactivitywithoutaradioreceiver

3.√Commonradiowavesareharmlesstohumanbeingsandotherthings.

4.×Evenatthelowestlevels,radiationwillcaucancerbykillingthehealthycells.

5.√Victimsofnuclearradiationmaydieofcanceryearslater.

Passage3Opticalfibercommunication

Opticalfibercommunicationisakindofinformation……iscomparativelyhigher.

1.√Akindofinformationcommunicationisopticalfibercommunication.

animosity2.×Thecompositeopticalfibergroundwireisldomudinpowersystem.

3.√Oneofthetransmissiontasksoftheopticalfibermainnetworkistotransmitadministrationtelephonesfrompowersystem.

4.√Opticalfibercommunicationhasbeentheimportantcommunicationmethodinpowercommunicationsystem.

5.×Largecapacityofcommunicationisnotoneoftheadvantagesofopticalfibercommunication.

6.×Thecommunicationcapacityofopticalfiberisindirectlyproportiontothecarrierfrequency.

7.√Thecarrierfrequencyofpowerlineismorethan300KHz.

8.×Thecarrierfrequencyofmicrowaveisbetween3000MHzand5000MHz.

9.√Themainproblemofthefiber-opticchannelisthehighpriceoffiber-opticequipment.

10.×Thecablesmadebyopticalfiberarenotexpensive.

Passage1Featureofpowergeneration

Thesimultaneousnessoftheelectricpowergenerationmeansthattheelectricpowergeneration,transmission,transformation,distribution…………Theelectricpowersystemconsistsofpowerplants,transmissionnetworks,distributionnetworksandtheconsu

Theunificationofpowersystemequipment…………Itissimplycalledthepowernetwork.

Thefeaturesofamodernpowernetworkframeare:(1)…………(3)Thevoltageclassaresimplifie

d.

interestrates1.×Theelectricpowercanbestored.

2.√Thepowersystemismadeupof4parts.

3.√Theunificationofpowersystemequipmentisformedby4equipments.

4.√Apowersystemisanundividedinteger.

5.×Thepowernetworkcanoperatenormallywithouttheintegrationofother3equipments.

6.√Alinklineiscalledatransmissionline.

7.×Alinklineisformedby3powernetworks.

8.√Anelectricpowernetworkissimplycalledapowernetwork.

9.×ThemainnetworkframeisformedbyaweakEHVsystem.

回收站英文10.×Thenetworksarenotclolylinkedwitheachother.

Passage2Typesofcircuitbreaker

Thehighvoltagecircuitbreakerismainlycompodofcontactors,……andSF6circuitbreaker.

1.√Contactors,arc-extinguishingelements,insulationmaterialandoperatingmechanismformthehighvoltagecircuitbreaker.

2.√Theinsulationstructureismakeupof3parts.

3.×Thearc-extinguishingmediumcanbedividedintoonly3parts.

4.√Anoilcircuitbreakermeansacircuitbreakerwithoilasarc-extinguishingandinsulationmedium.

5.×Avacuumcircuitbreakerisnotacircuitbreakerwithcloandopencontactorsinhighvacuum.

6.×ApureSF6gasisnotagoodarc-extinguishingmedium.

7.√TheinsulationstrengthofSF6gasishigherthanairandvacuum.

8.√Anoilminimumcircuitbreakerisverysafeinu.

9.×Anoilminimumcircuitbreakerhasbadheatdissipationcapability.

10.√Anoilminimumcircuitbreakerisoneofthemostlyudcircuitbreakersinthepowergrid.

Passage5Selectionofmetalmaterialfortheboilerinunitsof1000MWgrade.

Takingageneralviewofthe1000MW……mustbeadopted.

1.√The10000MWgradehigh-efficiencysupercriticalunitixdesignedandmadeinChina.

2.×Thetemperatureofmainsteamandreheatedsteamreachbasicallybetween570to650℃.

3.√Thetubewalltemperatureofsuperheaterandreheatercanreachmorethan600to650℃

4.√Theanti-hightemperaturesteamoxidationperformanceattubeinnersurfaceishighlydemanded.

5.×Theanti-hightemperaturefluegascorrosionperformanceattubeoutsidesurfaceisnothighlydemanded.

6.√ThetemperaturelimitofT91foruisabort593℃.

7.×ThetemperaturelimitofT92foruisless620℃.

8.√Thetemperatureofaustenitestainlesssteelfornormaluisabort650℃.

9.×Thetemperaturelimitofaustenitestainlesssteelislessthan700℃.

10.×Onlyheat-resistingsteelcanbeadoptedforu.

Passage6Theroleofthecondenr

Thecondenrisasurfaceheat……fromtheexhauststeamtemperature.

1.√Acondenrisaheatexchangerremovingthevaporizationheatfromtheexhauststeamandcondensingtheexhauststeamintowater.

旗标2.√Itissuggestedthatthewatershouldnotbecooledbelowthesaturationtemperature.

鹿角菜3.×Thesaturationtemperaturewouldnotremoveexcessenergyfromthesystemandreducetheoverallefficiency.

4.×Itisunnecessarytoreducethesteamtowatersothatitcanbepumpedbackthroughthesyste杨桃的英文

boobiesm.

5.×Thecondenrdoesnotcontrolback-pressureattheturbineexhaust.

6.√Theimportantfactorcontrollingtheturbinebackpressureisthetemperatureofthecoolingwaterpassingthroughthecondenrtubes.

7.√Thetemperatureofcoolingwaterwillincreaitstemperaturebetween15℉and20℉asitpassthroughthecondenr.

8.√Theterminaldifferencemeansthetemperaturedifferencebetweenthecoolingwaterandtheturbineexhauststeam.

9.×Thetemperatureincreaofthecoolingwaterandtheterminaldifferencedependon3factors.

10.×Theexhauststeamtemperaturedoesnotrelyonthetemperatureofthecoolingwaterwhichentersthecondenr.

Passage7Hydraulicstructure

Thelectedtypeofdamofhydraulicpowerplantdependsprincipallyontopographic,……beanalyzedandstudied.

1.√Thetypeofdamforhydraulicpowerplantdependsonmanyfactors.

2.√Themainpurpoofthedamsafetymonitoringistomonitortheperformanceindexes.

3.×Theequipmentinstalledinsidethedamistodiscoverthenormalityofdamintime.

thebird4.×Horizontaldisplacementismoreimportantthanverticaldisplacement.

5.×Temperaturestressandstrainarethetwomainmonitoringitemsofdam.

6.√Themonitoringmethodisthesuitablepointsinthedamanditsfoundation.

7.×Somemonitoringdevicesaremovableforperiodicalsupervision.

8.×Themonitoringresultshallbeanalyzedandstudiedbycomputers.

Passage8heattreatment

Thepurpoofpost-weldheat……displaydeviceandcontroldevice.

1.√Thepost-weldheattreatmentshavetwomainpurpos.

2.√Oneofthepurposistodiminishtheresidualstress