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2019年维修电工中级理论4月试卷带答案.pdf

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1、2019 年 4 月中级维修电工1.在企业的经营活动中,下列选项中的(B )不是职业道德功能的表现。A、激励作用B、决策能力C、规范行为D、遵纪守法2.下列关于勤劳节俭的论述中,正确的选项是(B )。A、勤劳一定能使人致富B、勤劳节俭有利于企业持续发展C、新时代需要巧干,不需要勤劳D、新时代需要创造,不需要节俭3.下面描述的项目中,(D )是电工安全操作规程的内容。A.及时缴纳电费B、禁止电动自行车上高架桥C、上班带好雨具D、高低压各型开关调试时,悬挂标志牌,防止误合闸4.职工上班时不符合着装整洁要求的是(A )。A、夏天天气炎热时可以只穿背心B、不穿奇装异服上班C、保持工作服的干净和整洁D、

2、按规定穿工作服上班5.三相对称电路的线电压比对应相电压(A )。A、超前 30 B、超前 60 C、滞后 30D、滞后 606.将变压器的一次侧绕组接交流电源,二次侧绕组与负载连接,这种运行方式称为(C)运行。A、空载B、过载C、负载D、满载7.变压器的基本作用是在交流电路中变电压、变电流、变阻抗、(B )和电气隔离A、变磁通B、变相位C、变功率D、变频率8.三相异步电动机的启停控制线路中需要有短路保护、过载保护和(D )功能A、失磁保护B、超速保护C、零速保护D、失压保护9.当二极管外加电压时,反向电流很小,且不随(D )变化A、正向电流B、正向电压C、电压D、反向电压10.扳手的手柄越短,

3、使用起来越(D ）A、麻烦B、轻松C、省力D、费力11.永磁材料的主要分类有(C )、铁氧体永磁材料、其它永磁材料。A、硅钢片B、钢铁C、金属永磁材料D、铝合金12.直流单臂电桥测量小值电阻时,不能排除(A ),而直流双臂电桥则可以。A、接线电阻及接触电阻B、接线电阻及桥臂电阻C.桥臂电阻及接触电阻D、桥臂电阻及导线电阻13.通常信号发生器按信号波形分类有(D )。A、正弦波信号发生器B、脉冲波信号发生器C、方波信号发生器D、以上都是14.数字万用表按量程转换方式可分为(B )类A、5 B、3 C、4 D、2 15.(B )适合现场工作且要用电池供电的示波器。文档编码:CD6I3E1Z5R8

4、HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P

5、3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8

6、HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P

7、3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8

8、HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P

9、3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8

10、HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3A、台式示波器B、手持示波器C、模拟示波器D、数字示波器16.晶体管毫伏表专用输入电缆线,其屏蔽层、线芯分别是(B )。A、信号线、接地线B、接地线、信号线C、保护线、信号线D、保护线、接地线17.三端集成稳压电路CW317,其输出电压范围为(A )V。A、1.2537 B、17 C、7 D、6 18.符合有“0”得“1,全“1”得“0”的逻辑关系的逻辑门是(D)。A、或门B、与门D、与非门

11、C、非门19.用于电源为220v 交流电的可控整流电路中的普通晶闸管应选用耐压为(C )。A、250V B、500V C、700V D、1000V 20.单结晶体管在电路图中的文字符号是(B )。A、SCR B、VT C、VD D、VC 21.理想集成运放的差模输入电阻为(D )。A、1M B、2M C、3M D、22.能用于传递交流信号,电路结构简单的耦合方式是(A )。A、阻容耦合文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5

12、V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:C

13、D6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5

14、V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:C

15、D6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5

16、V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:C

17、D6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5

18、V8 ZL1B3T8P3E3B、变压器耦合C、直接耦合D.电感耦合23.(D )作为集成运放的输入级。A、共射放大电路B、共集电极放大电路C、共基放大电路D、差动放大电路24.下列集成运放的应用能将矩形波变为三角波的是(C )。A、比例应用B、加法应用C、积分应用D、比较器25.单片集成功率放大器件的功率通常在(B )瓦左右A、10 B、1 C、5 D、8 26.串联型稳压电路的调整管接成(B )电路形式。A、共基极B、共集电极C、共射极D、分压式共射极27.单相半波可控整流电路的电源电压为220V,晶闸管的额定电压要留2倍裕量,则需选购(D )的晶管。A、250V B、300V C、500V

19、 D、700V 28.单相桥式可控整流电路电感性负载时,控制角的移相范围是(C )。A、0360B、0270C、090D、018029.单相桥式可控整流电路电阻性负载,晶闸管中的电流平均值是负载的(A )倍。A、0.5 文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 Z

20、L1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3

21、E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 Z

22、L1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3

23、E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 Z

24、L1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3

25、E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3B、1 C、2 D、0.25 30.对于工作环境恶劣、启动频繁的异步电动机,所用热继电器热元件的额定电流可选为电动机额定电的(A )倍A、0

26、.951.05 B、0.850.95 C、1.051.15 D、1.151.50 31.根据机械与行程开关传力和位移关系选择合适的(D )。A、电流类型B、电压等级C、接线型式D、头部型式32.对于环境温度变化大的场合,不宜选用(A )时间继电器。A、晶体管式B、电动式C、液压式D、手动式33.压力继电器选用时首先要考虑所测对象的压力范围,还要符合电路中的(B ),接口管径的大小。A、功率因数B、额定电压C、电阻率D、相位差34.直流电动机的转子由电枢铁心、电枢绕组、(D )、转轴等组成。A、接线盒B、换向极C、主磁极D、换向器35.直流电动机启动时,随着转速的上升,要(D )电枢回路的电阻。

27、A、先增大后减小B、保持不变C、逐渐增大D逐渐减小36.直流串励电动机需要反转时,一般将(A )两头反接。A、励磁绕组文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文

28、档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K

29、6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文

30、档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K

31、6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文

32、档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K

33、6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3B、电枢绕组C、补偿绕组D、换向绕组37.绕线式异步电动机转子串频敏变阻器启动时,随着转速的升高,(D)自动减小。A、频敏变阻器的等效电压B、频敏变阻器的等效电流C、频敏变阻器的等效功率D、频敏变阻器的等效阻抗38.设计多台电动机顺序控制线路

34、的目的是保证(B )和工作的安全可靠。A、节约电能的要求B、操作过程的合理性C、降低噪声的要求 D、减小振动的要求39.多台电动机的顺序控制线路（B ）。A、只能通过主电路实现B、既可以通过主电路实现,又可以通过控制电路实现C、只能通过控制电路实现D、必须要主电路和控制电路同时具备该功能才能实现40.三相异步电动机的位置控制电路中,除了用行程开关外,还可用(D)。A、断路器B、速度继电器C、热继电器D、光电传感器41.三相异步电动机能耗制动时(B)中通入直流电。A、转子绕组B、定子绕组C、励磁绕组D、补偿绕组42.同步电动机可采用的启动方法是(D)。A、转子串频敏变阻器启动B、转子串三级电阻启

35、动C、Y-启动法D、异步启动法43.M7130平面磨床控制线路中导线截面最细的是(C )。A、连接砂轮电动机M1的导线B.连接电源开关 QS1的导线C.连接电磁吸盘 YH的导线文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1

36、Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1

37、B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1

38、Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1

39、B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1

40、Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1

41、B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3D、连接冷却泵电动机M2的导线44.M7130平面磨床中,电磁吸盘 YH工作后砂轮和(C)才能进行磨削加工。A.照明变压器B.加热器C、工作台D、照明灯45.M7130平面磨床中砂轮电

42、动机的热继电器动作的原因之一是(B )。A、电源熔断器 FU1烧断两个B、砂轮进给量过大C.液压泵电动机过载D、接插器 2 接触不良46.M7130 平面磨床中,砂轮电动机的热继电器经常动作,轴承正常,砂轮进给量正常,则需要检查和调整（C ）。A.照明变压器B、整流变压器C、热继电器D、液压泵电动机47.C6150 车床控制线路中变压器安装在配电板的(D )。A、左方B、右方C、上方D、下方48.Z3040 摇臂钻床中的局部照明灯由控制变压器供给(D )安全电压A、交流 6V B、交流 10V C、交流 30V D、交流 24V 49.Z3040 摇臂钻床中液压泵电动机的正反转具有(D)功能。

43、A、接触器互锁B、双重互锁C、按钮互锁D、电磁阀互锁50.Z3040 摇臂钴床中摇臂不能夹紧的可能原因是(D ）。A、行程开关 SQ2安装位置不当B、时间继电器定时不合适C、主轴电动机故障 D、液压系统故障文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P

44、3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8

45、HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P

46、3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8

47、HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P

48、3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8

49、HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E3文档编码:CD6I3E1Z5R8 HS6K6P2P5V8 ZL1B3T8P3E351.光电开关的接收器部分包含（D ）。A、定时器B、调制器C、发光二极管D、光电三极管52.当检测远距离的的物体时,应优先选用(A)光电开关。A、光纤式

50、B、槽式C、对射式D、漫反射式53.当检测体为(D )时,应选用电容型接近开关。A、透明材料B、不透明材料C、金属材料D、非金属材料54.(A )和干簧管可以构成磁性开关。A、永久磁铁B、继电器C、二极管D、三极管55.磁性开关中干簧管的工作原理是(B )。A、与霍尔元件一样B、磁铁靠近接通,无磁断开C、通电接通,无电断开 D.与电磁铁一样56.磁性开关用于(D )场所时应选金属材质的器件。A、化工企业B、真空低压C、强酸强碱D.高温高压57.增量式光电编码器主要由（D)、码盘、检测光栅、光电检测器件和转换电路组成。A、光电三极管B、运算放大器C、脉冲发生器D、光源文档编码:CD6I3E1Z5

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