【单选题】
CRH系列动车组供电制式为( )。___
A. DC25KV 50HZ
B. 单相AC25V 50HZ
C. 三相AC230KV 50HZ
D. 单相AC25KV 50HZ
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答案
D
解析
暂无解析
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【单选题】
CRH2A统型动车组除头车和餐车外,每车厢灭火器配备标准为( )。___
A. 2kg ABC干粉2具
B. 2kg水型2具
C. 2开关ABC干粉水型各1具
D. 2kg ABC干粉水型各2具
【单选题】
CRH2A统型动车组保压试验时,总风压力为880KPA时,将BV压力手柄置于B7位,核对双针压力表,每5分钟压力下降不得大于( )KPa。___
A. 10
B. 20
C. 30
D. 40
【单选题】
CRH2A统型动车组设有容量充足的蓄电池组,供紧急时使用。应急用电量(含应急照明、列车无 线装置、广播装置、尾灯及应急通风)最少可持续( )小时。___
A. 5
B. 4
C. 3
D. 2
【单选题】
CRH2A统型动车组空调控制使用的是以下( )电源。___
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C. 稳压DC100V、非稳压单相AC100V
D. 稳压DC100V、稳压单相AC100V
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CRH2A动车组受电弓正常升起,但MON未显示原因,以下正确的是( )①压力传感器无法正常工作②压力开关故障③受电弓气囊坏损④“显示灯电源”断路器断开.___
A. ①②③
B. ①②③④
C. ②④
D. ①②④
【单选题】
CRH2A动车组EGS合上后无法断开原因为( )①司机室配电盘中的“保护接地 ”断路器处于断开位②司机室的“保护接地合”按钮或旋钮处于闭合位 ③辅助风缸风压过低 ④运行配电盘中的“保护接地断”断路器处于断位.___
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C. 10型半自动车钩,柴田式全自动车钩;
D. 10型全自动车钩,柴田式全自动车钩。
【单选题】
CRH380A统型动车组主空压机和辅助空压机数量为( )。___
A. 3、5、7号车设置主空压机,4、6号车设置辅助空压机
B. 3、7号车设置主空压机,4、6号车设置辅助空压机
C. 3、5、7号车设置主空压机,2、4、6号车设置辅助空压机
D. 5、7号车设置主空压机,2、4、6号车设置辅助空压机
【单选题】
在处理CRH380A统型动车组制动不足故障时,( )不可能用到。 ___
A. 紧急复位操作
B. 切除车辆制动系统
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