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单选题 Turn the charging mode switch SW2 to the "normal charging" position
学科：默认课程
时间：2025-12-24 02:53:31
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题目1单选题
The function of logic control, self-diagnosis and multiple unit network connection is realized by using the computer network control systemA. 除受电弓、避雷器、高压连接器外,其它高压设备均放置在高压柜内B. 每节动力车的辅助电气系统采用 2 组辅助变流器,能分别提供 VVVF 和 CVCF 三相辅助电源C. 采用微机网络控制系统,实现了逻辑控制、自诊断功能,而且实现了网络重联功能
题目2单选题
Turn the charging mode switch SW2 to the "normal charging" positionA. 将低压电气柜上所有断路器打至闭合位B. 将蓄电池电源柜上单元选择开关 SW1 置于"Auto"位C. 充电方式开关 SW2 置"正常充电"位
题目3单选题
The cab display unit carries out unmanned warning prompt at the same timeA. 司机室显示单元同时进行无人警惕预警提示B. 司机室的语音箱开始发出"无人警惕"的语音报警C. 微机控制系统 CCU会发出惩罚制动指令,动力车实施最大常用制动
题目4单选题
Insert the blue key into the pantograph-up key valve in the air brake cabinet, and turn the key to open the raising pantograph air path (at this time the key will not be pulled out), so as to prepare for the pantograph raisingA. 黄色钥匙插入到高压接地开关上,才可使高压接地开关打至正常运行位,蓝色钥匙才可拔出,完成高压安全连锁B. 将蓝色钥匙插入空气制动柜内的升弓钥匙阀,旋转钥匙开启升弓气路 (此时该钥匙将无法取出),为升弓做好准备
题目5单选题
双弓模式下,远离主控端主断闭合A. In double pantograph mode, the main circuit-breaker which far from the operation cab is connectedB. In the automatic mode, the pantograph which far from the operation cab is raisedC. There are two working modes of auxiliary compressor: manual blow and automatic blow
题目6单选题
Automatic blow: Put the pantograph toggle switch in the "UP" position, and the auxiliary compressor begins to blow to the auxiliary reservoir to carry out automatic blowingA. 手动打风:按压辅压机按钮,辅压机开始向辅助风缸进行打风B. 若辅助风压正常,则受电弓开始升起C. 自动打风:将受电弓扳键开关置"升"位,辅压机开始向辅助风缸打风,实现自动打风
题目7单选题
All kinds of switches on operating console return to zero positionA. 操纵台各类开关回零位B. 将动力车低压电气柜上断路器断开C. 断开各类断路器
题目8单选题
The power vehicle is a four-axle car. There is a driver's cab at the front end of the power vehicle and a machinery room in the middleA. 自动过分相装置具有动作时间点记录功能B. 动力车是 4 轴车.在动力车的前端设有一个司机室,中间是机械室C. 有通讯设备用的天线、冷却塔进风口、受电弓监视摄像头等
题目9单选题
The power vehicle has the function of passing through the neutral zone automaticallyA. 动力车具有自动通过分相区的功能B. 在自动过分相装置故障时,可采用手动或半自动方式通过分相区C. 动力车自动过分相控制
题目10单选题
将动力车蓄电池电源柜上的断路器断开A. Disconnect the circuit breaker on the battery power cabinet of the power vehicleB. Put brake shoe under the wheel (wheel skid)C. Disconnect the circuit breaker on the low voltage electric cabinet of the power vehicle
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