铁路局题库：车辆电工高级题库答案.doc

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1、车辆电工高级题库答案一、填空题1.零电位2.电压值3.绝缘体4.正比5.欧姆定律6.并联7.大于8.小于9.直流电10.交流电11.正弦12.13.50Hz23.初相角24.120电角度25.相线26.380V27.有效28.原理图29.控制电路30.动力电路31.串联32.并联33.正端34.正端35.钳形36.正极37.R×10038.控制箱39.有电40.绝缘层41.45W42.不能42.绝缘手套44.氯磺化聚乙烯45.绝缘导线46.隔绝47.绝缘胶管48.老化49.毛刺50.安全51.短路52.管式53.1.3～2.154.机械强度55.电气装置56.供电系统57.播

2、音通讯58.集中供电59.蓄电池60.免维护61.全部62.充电机63.单相半控64.12V65.2MΩ66.电热管67.卫星定位68.发光二极管69.三极管70.电压变换71.BY-272.15W73.太低74.接地75.380V76.220V77.燃轴78.双线制79.控制80.保护装置81.假负载82.双相触电83.100mA84.高压85.烟火86.导电性能87.带电薄层88.单向导电89.反向90.发射极91.饱和92.断开93.接通94.PN结95.锗96.铁97.磁性98.N和S99.相斥100.磁力作用101.交变102.交变电流103.硅钢片104.机械能1

3、05.工作机械106.控制电器107.接通或断开108.300kW109.集控充电屏110.抱死及损坏111."88"112.单片微型计算机113.预烘114.电路115.连接导线116.断路117.电流118.正电荷119.交流电120.电压121.参考点122.复励123.改变磁极磁通124.能耗制动125.原理设计126.跨步电压127.集肤效应128.涡流129.串联谐振130.并联谐振131.Xc＝XL132.提高分断能力133.提高触头容量134.非135.无源逆变136.矩形波137.模拟信号138.高阻抗139.驱动器140.电容器141.阻容耦合142.电阻

4、143.并联电阻144.Y轴系统145.同相位146.5Ω147.2Ω148.NPN型①e②c③b149.Uc＞Ub＞Ue150.拓扑结构二、选择题1.C2.D3.B4.C5.C6.B7.D8.A9.A10.A11.B12.D13.B14.C15.B16.D17.D18.D19.D20.B21.C22.A23.D24.C25.A26.B27.B28.D29.B30.D31.B32.B33.C34.B35.C36.C37.C38.B39.B40.B41.D42.D43.A44.B45.C46.B47.A48.C49.C50.A51.C52.C53.B54.B55.B56.B57

5、.C58.D59.A60.B61.A62.B63.D64.A65.D66.A67.B68.D69.D70.B71.B72.A73.D74.D75.C76.B77.D78.D79.C80.A81.B82.D83.B84.C85.A86.B87.B88.C89.B90.C91.D92.B93.B94.A95.D96.B97.A98.C99.C100.C101.A102.C103.A104.B105.D106.A107.D108.A109.A110.B111.D112.A113.C114.C115.B119.B120.A15121.C122.B123.B124.B125.D126.

6、C127.B128.A129.A130.C131.A132.B133.D134.A135.A136.A137.A138.C139.B140.B141.B142.C143.A144.D145.C146.B147.A148.D149.A150.C三、判断题1.√2.×3.√4.√5.×6.×7.×8.×9.√10.√11.√12.×13.×14.√15.√16.√17.√18.×19.×20.×21.√22.√23.×24.×25.√26.×27.×28.×29.√30.×31.√32.√33.√34.×35.√36.√37.×38.√39.×40.√41.√42.×43.√44

7、.×45.√46.×47.√48.√49.×50.√51.√52.×53.√54.√55.×56.√57.√58.×59.√60.√61.×62.√63.×64.√65.×66.√67.√68.×69.×70.√71.√72.√73.√74.√75.√76.×77.×78.√79.√80.×81.×82.√83.√84.√85.√86.√87.√88.×89.√90.√91.√92.√93.√94.×95.√96.×97.×98.√99.×100.√101.√102.√103.√104.√105.√10