【填空题】
10.熔断器在电路中起限制通过____电流的作用。___
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【填空题】
11.车电固定设备是指除车电机具以外的____装置。___
【填空题】
12.普通客车配线按用途可分为___配线和播音配线两大系统。___
【填空题】
13.客车电气装置由供电部分、配电、输电和连接部分及____器部分组成。___
【填空题】
14.车电机具是指发电机及___装置、蓄电池、电扇和轴报器等。___
【填空题】
15.接触器是用来接通或___主电路的一种控制电器。___
【填空题】
16.继电器是在输入_____作用下而动作的自动控制电器。___
【填空题】
17.熔断器主要由___和熔断管两部分组成。___
【填空题】
18.客车空调三机是指空调机组、____和发电机组。___
【填空题】
19.轴温报警器是一种车载监测___温度变化,超温报警的装置。___
【填空题】
20.轴报器的中修周期与客车____周期相同。___
【填空题】
21.TKZW-1T型轴报器跟踪报警温度是____。___
【填空题】
22.三相感应电支机常用的起动方式有___起动和降压起动等两种。___
【填空题】
23.25G型客车电气设备按电压等级分为____V、220V和48V三类。___
【填空题】
24.具有安装客车发电机和蓄电池的固定设备,但暂时未安装的客车叫_____。___
【填空题】
25.客车电动水泵由直流电动机的循环___组成。___
【填空题】
26.凡实行定期检修并需分解的蓄电池,应首先进行一次部分容量的放电,叫____。___
【填空题】
27.利用晶体管电路把直流电转变为交流电,这种对应于整流的逆向过程称为_____。___
【填空题】
28.万有表使用完毕后,应将转换开关置于___档。___
【填空题】
29.一般万用表主要由表头、测量线路和___组成。___
【填空题】
30.低压电器按照它所控制的对象不同,可分为低压配电电器及___电器两种。___
【填空题】
31.通常规定兆欧表的额定转速为____r/min。___
【填空题】
32.将电气设备与零线相连叫___。___
【填空题】
33.把数字信号转换___的装置称为D/A转换器。___
【填空题】
34.电工常用的绝缘材料按其化学性质的不同,可分为___绝缘材料、有机绝缘材料和混合绝缘材料三种。___
【填空题】
35.激磁线端反接会造成KP-2A型控制箱发电机___。___
【填空题】
36.空调机组的主要噪声来自_____和风机。___
【填空题】
37.J5型发电机及恒压装置的整定电压是___V。___
【填空题】
38.25型空调客车车下配线包括输送三相交流电的主线、___及车下各负载支线等。___
【填空题】
39.最高工作温度保险丝的额定电流是指___。___
【填空题】
40.25型客车电压为____三相四线制。___
【填空题】
41.客车上使用的逆变器,其三极管的连接方式为___。___
【填空题】
42.电流互感器是配合电流表,继电保护线圈来反映___的一种特殊变压器.___
【填空题】
43.通常所说的表头灵敏度是指使表针自零点___时的电流值。___
【填空题】
44.电流所通过的路径称___。___
【填空题】
45.电路是由电源、负载、开关和___四个基本部分组成。___
【填空题】
46.电磁式交流继电器主要由____、触头部分和反力部分组成。___
【填空题】
47.在可控整流电路中,触发电路必须和____同步。___
【填空题】
48.直流电源一般由电源变压器、____、滤波器和稳压电路组成。___
【填空题】
49.在可控整流电路中,触发电路必须和____同步。___
【填空题】
50.车辆空调制冷系统中,单位时间内所摄取的热量称为___。___
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