The oil pressure and flow from each bearings can be checked when()
A. the lubricating pumps are stopped and the access doors are opened
B. the lubricating pumps are running and the access doors are opened
C. the engine is running and the access doors are closed
D. the engine is stopped and the access doors are closed
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手制动杆是通过(),供停车后及坡道上驻停制动使用。
A. 车轮制动器
B. 操纵手制动器.
C. 控制车辆速度
D. 使车辆减速停车
CRH1A型动车组IDU主机是通过()通讯线与TDSCCU模块进行通讯。
A. WTB
B. MVB
C. 以太网
D. CAN
用Nmap扫描目标网段192.168.0.1为B类网段,可用()方式来指定。
A. 192.168.*.*
B. 192.168.0.0
C. 192.168.0-255.0-255
D. 192.168.0.0/16
只把APU起动电门放在ON位时,下列何种情况不会发生()
A. 低滑油压力灯亮
B. APU燃油关断活门打开
C. 进气门打开
D. 燃油分流电磁活门关闭