2022年下半年上海高压电工操作证考试试卷.pdf

2016 年下半年上海高压电工操作证考试试卷一、单项选择题（共25 题，每题 2 分，每题的备选项中，只有1 个事最符合题意）1、中间继电器的工作原理是_。A电流化学效应B电流热效应C电流机械效应D与接触器完全相同2、u=sint 是_电压。A脉动B正弦交流C交流D直流3、Y-D 降压启动的指电动机启动时，把定子绕组联结成Y 形，以降低启动电压，限制启动电流。待电动机启动后，再把定子绕组改成_，使电动机全压运行。AYY BY 形CDD 形DD 形4、电气技术中文字符号由（）组成。A基本文字符号和一般符号B一般符号和辅助文字符号C一般符号和限定符号D基本文字符号和辅助文字符号5、电路图是根据 _来详细表达其内容的。A逻辑图B位置图C功能表图D系统图和框图6、选择兆欧表的原则是 _。A兆欧表额定电压要大于被测设备工作电压B一般都选择 1000V 的兆欧表C选用准确度高、灵敏度高的兆欧表D兆欧表测量范围与被测绝缘电阻的范围相适应7、室外安装的变压器的周围应装设高度不低于_m 的栅栏。A1 B1.2 C1.5 D1.7 8、经济型数控系统常用的有后备电池法和采用非易失性存储器，如闪速存储器_。AE2PROM BNVRAM CFLASHROM DEPROM 9、串联谐振逆变器输入是恒定的电压，输出电流波形接近于_，属于电压型逆变器。A锯齿波B三角波C方波D正弦波10、电磁式继电器的检测与要求中，对于一般桥式触点，吸合时的超额行程不小于_。A4.5mm B3.5mm C2.5mm D1.5mm 11、人体_是最危险的触电形式。A单相触电B两相触电C接触电压触电D跨步电压触电12、在一个程序中，同一地址号的线圈 _次输出，且继电器线圈不能串联只能并联。A只能有 1 B只能有 2 C只能有 3 D无限13、编程序器的数字键由09 共 10 个键组成，用以设置地址号、_、定时器的设定值等。A工作方式B顺序控制C计数器D参数控制14、电流流过负载时，负载将电能转换成_。A机械能B热能C光能D其他形式的能15、在 MCB1420 万能磨床的晶闸管直流调速系统中，该系统的工件电动机功率为_。A0.15kW B0.22kW C0.55kW D0.75kW 文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N416、以最高进给速度运转时，应在全行程进行，分别往复_。A1 次和 5 次B2 次和 4 次C3次和 2 次D4 次和 1 次17、数控机床的几何精度检验包括_。A主轴的轴向窜动B主轴箱沿 z 坐标方向移动时主轴轴心的平行度Cx，z 坐标方向移动时工作台面的平行度D以上都是18、一直流电通过一段粗细不均匀的导体时，导体各横截面上的电流强度_。A与各截面面积成正比B与各截面面积成反比C与各截面面积无关D随截面面积变化面变化19、变压器具有改变 _的作用。A交变电压B交变电流C变换阻抗D以上都是20、逆变电路为了保证系统能够可靠换流，安全储备时间t必须大于晶闸管的（）。A引前时间B关断时间C换流时间Dtf-tr 21、直流电动机铭牌上标注的温升是指（）。A电动机允许发热的限度B电动机发热的温度C电动机使用时的环境温度D电动机铁心的允许上升温度22、_属于无源逆变。A绕线式异步电动机串极调速B高压直流输电C交流电动机变速调速D直流电动机可逆调速23、由于双向晶闸管需要 _触发电路，因此使电路大为简化。A一个B两个C三个D四个24、关于变压器，下列说法错误的是_。A变压器是一种静止的电气设备B变压器用来变换电压文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4C变压器可以变换阻抗D变压器可以改变频率25、电机润滑剂的作用是 _。A降低轴承运行的速度B增高电机的工作速度C降低摩擦力，减少磨损，还可防锈蚀，降噪声，减震并利于散热D降低轴承的工作温度二、多项选择题（共25 题，每题 2 分，每题的备选项中，有2 个或 2 个以上符合题意，至少有 1 个错项。错选，本题不得分；少选，所选的每个选项得0.5 分）1、移动式电动工具用的电源线，应选用的导线类型是_。A绝缘软线B通用橡套电缆C绝缘电线D地埋线2、由一组逻辑电路判断控制整流器触发脉冲通道的开放和封锁，这就构成了_可逆调速系统。A逻辑环流B逻辑无环流C可控环流D可控无环流3、劳动者的基本义务包括 _等。A遵守劳动纪律B获得劳动报酬C休息D休假4、电流表要与被测电路（）。A断开B并联C串联D混联5、劳动者的基本权利包括 _等。A完成劳动任务B提高生活水平C执行劳动安全卫生规程D享有社会保险和福利6、各位的段驱动及其位驱动可分别共用一个锁存器。每秒扫描次数大于_次，靠人眼的视觉暂留现象，便不会感觉到闪烁。A20 B30 C40 D50 7、转矩极性鉴别器常常采用运算放大器经_组成的施密特电路检测速度调节器的输出电压 un。文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4A负反馈B正反馈C串联负反馈D串联正反馈8、晶体管放大区的放大条件为_。A发射结正偏，集电结反偏B发射结反偏或零偏，集电结反偏C发射结和集电结正偏D发射结和集电结反偏9、触发脉冲信号应有一定的宽度，脉冲前沿要陡。电感性负载一般是1ms，相当于 50Hz 正弦波的 _。A360B180C90D1810、CA6140 型车床电动机 M2、M3 的短路保护由 FU1 来实现，M1 和 M2 的过载保护是由各自的 _来实现的，电动机采用接触器控制。A熔断器B接触器C低压断路器D热继电器11、交流三相异步电动机Z=24，m=32，P=4，则每极每相的槽数为 _。A 8 槽B2 槽C4槽D6 槽12、测速发电机是一种将 _转换为电气信号的机电式信号的元器件。A输入电压B输出电压C转子速度D电磁转矩13、发电制动适用于 _在位能负载作用下的情况。A起重机械B小容量电动机C能耗制动D反接制动14、10kW 三相异步电动机定子绕组八接线，用热继电器作过载保护，其型号应选_最合适。AJRl620/3，热元件额定电流为22A，调整范围为 1422A B3RO20/3D，热元件额定电流为22A，调整范围为 1422A C3Rl540/2，热元件额定电流为24A，调整范围为 1524A D3Rl420/3D，热元件额定电流为11A，调整范围为 6.811A 15、脉动环流产生的原因是整流电压和逆变电压_不等。A平均值文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4B瞬时值C有效值D最大值16、接地系统中，人工接地体不应放在车间内，最好离开车间门及人行道5m，不得小于 _。A5.5m B4.5m C3.5m D2.5m 17、GP100C3 型高频设备电路由工频电源输入电路、_、灯丝供电电路、测量电路、控制保护电路六部分组成。A高频振荡电路B低频振荡电路C高压电源输入D低压电源输入18、电压互感器的二次线圈有一点接地，此接地应称为_。A重复接地B工作接地C保护接地D防雷接地19、_属于无源逆变。A绕线式异步电动机B高压直流输电C交流电动机变速调速D直流电动机可逆调速20、5t 桥式起重机线路中，对总过电流继电器，其整定值应为全部电动机额定电流总和的 1.5 倍，或电动机功率最大一台的额定电流的_倍再加上其他电动机额定电流的总和。A1.0 B1.5 C2.0 D2.5 21、直流接触器的铁心不会产生_损耗。A涡流和磁滞B短路C涡流D空载22、当使用新管或长期贮存的管子时，应加额定灯丝电压进行预热，时间不少于_h。A1 B2 C2.5 D3 23、_单元是实现各种功能的核心。文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 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ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4A数控B步进伺服驱动C减速步进电动机D控制24、进行 20/5t 桥式起重机主钩下降控制电路的校验时，置下降第四挡位，观察_、KMB、KM1、KM2 可靠吸合，KMD 接通主钩电动机下降电源。AKMA BKMC CKMK DKMD 25、定子绕组串接电阻降压起动是指在电动机起动时，把电阻接在电动机定子绕组与电源之间，通过电阻的_作用来降低定子绕组上的起动电压。A分压B分流C发热D防性文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 HP1T7H3X7O9 ZF2V5G7U10N4文档编码:CC1L5G9W6F9 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