【判断题】
CRH2A统型动车组空调电热器,通过逆变器,使用单相400 V电源加热
A. 对
B. 错
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答案
B
解析
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相关试题
【判断题】
CRH2A统型动车组的空调显示设定器使用的是非稳定单相AC100V系统供电
A. 对
B. 错
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CRH2A统型动车组重连作业时,两动车组进入摘解线路停车,动车组均处于缓解状态
A. 对
B. 错
【判断题】
CRH2A统型动车组在VCB合的状态下,受电弓无法降下
A. 对
B. 错
【判断题】
CRH2A统型动车组油压减振器主要有垂向减振器、横向减振器、车间油压减振器三种类型
A. 对
B. 错
【判断题】
CRH2A统型动车组自动广播设备在没有CF 卡的情况下启动,计算机系统只会进入普通Windows CE 的界面下
A. 对
B. 错
【判断题】
空气制动系统中的中继阀的主要作用是放大压缩空气的流量
A. 对
B. 错
【判断题】
动车组冬季排空流程为先进行集控或单车防冻排空再分别进行车上设备排水和车下设备排水
A. 对
B. 错
【判断题】
CRH2A(统型)动车组达到5km/h以上时侧拉压紧装置会启动,将门和车体压紧密贴,保证气密性
A. 对
B. 错
【判断题】
CRH2A(统型)动车组在各车厢的客室内设有紧急按钮、火灾按钮复位操作开关,按下复位开关可以复位该车厢紧急、火灾蜂鸣器
A. 对
B. 错
【判断题】
CRH2A(统型)动车组客室照明荧光灯有三种,分别是 110W、40W、20W
A. 对
B. 错
【判断题】
CRH2A统型型动车组扩展供电时,闭合ACK2,空调会自动减半
A. 对
B. 错
【判断题】
CRH2A(统型)动车组由于动车组两头车采用密接车钩,其高度为1000mm
A. 对
B. 错
【判断题】
CRH2A(统型)动车组为使MR压力保持在一定的压力范围,MR压力的范围为780—880kPa
A. 对
B. 错
【判断题】
CRH2A(统型)动车组制动系统具备动力制动和空气制动的功能,当动力制动能力不足或丧失时,使用空气制动补充,仍须保证规定的紧急制动距离
A. 对
B. 错
【判断题】
CRH2A(统型)动车组主牵引系统主要由受电弓、牵引变压器、牵引变流器及牵引电机组成
A. 对
B. 错
【判断题】
CRH2A(统型)动车组线号100~199的指的是AC100V系统
A. 对
B. 错
【判断题】
CRH2A动车组网络总体响应速度小于 50 ms
A. 对
B. 错
【判断题】
CRH2A(统型)动车组影视系统素材库有 公共视频库 、公共音频库1、公共音频库2、公共音频库3
A. 对
B. 错
【判断题】
CRH2A(统型)动车组前罩开闭机构由三部分组成:开闭装置、锁紧装置、头罩三部分组成
A. 对
B. 错
【判断题】
CRH2A(统型)动车组转向架制动装置采用气动式夹钳、浮动式闸片的盘式制动方式
A. 对
B. 错
【判断题】
CRH2A(统型)动车组停放制动缓解空气压力550kPa
A. 对
B. 错
【判断题】
CRH2A(统型)动车组轴温检测装置动车转向架设置24个
A. 对
B. 错
【判断题】
CRH2A(统型)动车组蓄电池电解液是以氢氧化钾为主体的水溶液
A. 对
B. 错
【判断题】
CRH2A(统型)动车组蓄电池98~104V范围以外的电压不能充电
A. 对
B. 错
【判断题】
CRH2A(统型)动车组停放制动单元缸为弹簧储能式制动缸
A. 对
B. 错
【判断题】
CRH2A统型动车组制动指令转换器的设定方法:制动最高档位通过SW1(2,3)进行设置,一般设定为7N
A. 对
B. 错
【判断题】
牵引电机采用三相鼠笼式感应电机,其轴端设置有速度传感器、用于牵引变流器测速以及制动控制装置检测速度
A. 对
B. 错
【判断题】
CRH2A(统型)动车组采用BT25.04 型高压隔离开关
A. 对
B. 错
【判断题】
CRH2A统型动车组采用的受电弓型号DSA250。弓头宽度1950mm,具有自动降弓功能,适应接触网高度为5300-6500mm
A. 对
B. 错
【判断题】
CRH2A(统型)动车组由7个部分组成,即:车体、转向架、车辆连接装置、制动装置、车辆内部设备、牵引传动系统和辅助供电系统
A. 对
B. 错
【判断题】
CRH2A统型动车组再生制动时,接收滤波电容器输出的电压,向牵引变压器供应AC1500 V,50 HZ电压
A. 对
B. 错
【判断题】
CRH2A统型动车组电气常用代号K代表电磁阀,He代表加热器,S代表开关
A. 对
B. 错
【判断题】
CRH2A统型动车组车体倾斜尺寸测量保证MR压力880kPa以上
A. 对
B. 错
【判断题】
CRH2A统型动车组检查空气弹簧支撑与底座间(转向架构架侧梁空气弹簧安装座上部)有无加装调整板
A. 对
B. 错
【判断题】
CRH2A统型动车组浪涌保护装置检查,使用万用表欧姆档对保险管两端测量,确定阻值500Ω
A. 对
B. 错
【判断题】
CRH2A统型动车组在受电弓没有降下或保护接地开关EGS没有闭合的情况下,高压机器箱不能打开
A. 对
B. 错
【判断题】
CRH2A统型动车组EGS的作用是将高压系统强制性接地,以便车辆维护时人员的安全
A. 对
B. 错
【判断题】
CRH2A统型动车组头车车钩中心高度由于车钩整体超差,可通过空气弹簧进行调整
A. 对
B. 错
【判断题】
CRH2A统型动车组车内通风用排气装置的结构为设置于客室座席底座部、司机室、出入通道及厕所的排气口与底板下的排气通道不相通
A. 对
B. 错
【判断题】
CRH2A统型动车组受电弓绝缘检测:用500V兆欧表测量受电弓框架和大地(EGS盘)之间阻值在25MΩ以上
A. 对
B. 错
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