国网电力职称英语阅读判断(已排版).doc

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1、Passage1Featureofpowergeneration1.Theyelectricpowercanstored.(wrong)2.Thepowersystemismadeupof4parts.(right)3.Theunificationofpowersystemequipmentisformedby4equipments.(right)4.Apowersystemisanundividedinteger.(right)5.Thepowernetworkcanoperatenormallywithouttheintegrationofother3equipments.(wr

2、ong)6.Alinklineiscalledatransmissionline.(right)7.Alinklineisformedby3powernetworks.(wrong)8.Anelectricpowernetworkissimplycalledapowernetwork.(right)9.ThemainnetworkframeisformedbyaweakEHVsystem.(wrong)10.Thenetworksarenotcloselylinkedwitheachother.(wrong)Passage2Typesofcircuitbreaker1.Contact

3、ors,are-extinguishingelements,insulationmaterialandoperatingmechanismformthehighvoltagecircuitbreaker.(right)2.Theinsulationstructureismadeupof3parts.(right)3.Theare-extinguishingmediumcanbedividedintoonly3parts.(wrong)4.Anoilcircuitbreakermeansacircuitbreakerwithoilasare-extinguishingandinsula

4、tionmedium.(right)5.Avacuumcircuitbreakerisnotacircuitbreakerwithcloseandopencontactorsinhighvacuum.(wrong)6.ApureSF6gasisnotafoodare-extinguishingmedium.(wrong)7.TheinsulationstrengthofSF6gasishigherthanairandvacuum.(right)8.Anoilminimumcircuitbreakerisverysafeinuse.(right)9.Anoilminimumcircui

5、tbreakerhasbadheatdissipationcapability.(wrong)10.Anoilminimumcircuitbreakerisoneofthemostlyusedcircuitbreakersinthepowergrid.(right)Passage3Opticalfibercommunication1.Akindofinformationcommunicationisopticalfibercommunication.(right)2.Thecompositeopticalfibergroundwireisseldomusedinpowersystem

6、.(wrong)3.Oneofthetransmissiontasksoftheopticalfibermainnetworkistotransmitadministrationtelephonesfrompowersystem.(right)4.Opticalfibercommunicationhasbeentheimportantcommunicationmethodinpowercommunicationsystem.(right)5.Largecapacityofcommunicationisnotoneoftheadvantagesofopticalfibercommuni

7、cation.(wrong)6.Thecommunicationcapacityofopticalfiberisindirectlyproportiontothecarrierfrequency.(wrong)7.Thecarrierfrequencyofpowerlineismorethan300kHz.(right)8.Thecarrierfrequencyofmicrowaveisbetween3000Mhaand500MHz.(wrong)9.Th