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1、初级信号工(车站与区间信号设备维修)理论考试一、填空题(请将正确答案填在横线空白处,每题2分,共134题)1.信号工一般常用的工具有钳子、__________、螺丝刀、管钳子、手锤、扁铲、冲子、手电钻、锉刀等。活口扳手2.使用万用表欧姆挡测量电阻时不能__________测量。带电3.装有电动、电空、电液转辙机的道岔,当第一连接杆处的尖轨与基本轨间有__________及以上间隙时,不能锁闭,信号不能开放。4mm4.在测量未知电压电流值时应先将万用表转换开关旋至__________量程,然后再逐步减小量程,以免损坏仪表。最大5.兆欧表的标尺单位是___
2、_______。MΩ6.测量信号设备时一般选用测量电压为__________V的兆欧表。5007.钳形表主要用于在不断电的情况下测量__________的大小。交流电流8.ZC-8型接地电阻测量仪用于测量__________的接地电阻。各种接地装置9.测量地线接地电阻时,应将地线同__________断开。电气设备10.錾子的用途是用来__________金属。錾切11.__________是钻孔用的主要刃具。花钻头12.当发生挤岔时,防护该进路的信号机应__________;被挤道岔未恢复之前,有关信号机不能开放。自动关闭13.双线区段的车站股道编号
3、应从正线起,按列车的运行方向分别__________顺序编号。向外14.在站场信号平面布置图上,站场股道的编号,正线编为罗马数字,站线编为__________数字。阿拉伯layoutdevelopmentcitiesindevelopedcountriesshowthatdevelopingrailtransitGuideandanimportantmeansofachievingsustainableurbandevelopment.Morethanthebulkoftheurbanrailtransitvehicles,railtrafficint
4、heurbanspacelayoutandguidetheevacuation,optimizingthestructureandotheraspectsalsoplayanimportantroleinitsroleasthescalebecomesmoreimportant.Railtransitonlanddevelopmentandstimulationisachievedthroughitsgoodaccessibility,underthedualroleofmechanismsinlandandplanning,transportacce
5、ssibilityhighlandalongtherailtransitdevelopmentandhighstrength,promotionofurbanmorphologyandlandusepatternstoadjustaccordingly.1,andCopenhagen1947,Copenhagenreferstoshapedplanningintroduced,requirementslanddevelopmentalongnarrowoffingercorridorconcentrated,referstoshapedplanning
6、guidebigCopenhagenareaalongtracktrafficlinecleardefinedofcorridorforMetrodevelopment,throughtracktrafficandcitydevelopmentofintegration,willalongdevelopmentconcentratedintrackstationaroundakmaround,aroundtracksitelandimplementationintegratedintensivedevelopment,andprovidesgoodof
7、non-mobileofwayreceivedconnectionfacilities,Ensurethatalargerproportionoftheregion'sresidentscommuteusingmasstransit.Figure5.1-3CopenhagenMetroCityDevelopment2,Tokyo5.1-4TokyoMetrotoguideregionaldevelopment(left:1950,right:2000)formationisthemasstransitsystemofthecityofTokyo,whi
8、chhavebeendevelopedundertheguidanceof.Easternsu