更多"[单选题] Before any portable gas indic"的相关试题:
[单选题] Diesel engines are considered safer than gasoline engines because ______．
A.They are more heavily built
B.The fuel used is less volatile
C.They can be easily reversed
D.They operate at a lower speed
[判断题]A state may declare at any time any member of the diplomatic mission persona non grata, in which case the sending state must withdraw the person.
A.正确
B.错误
[单选题]In motorships,an exhaust gas boiler is often used to some of the heat carried in the exhaust gases from the main engine
A.finish
B.mnake
C.recover
D.take
[单选题] An uncontrolled flow of gas，oil，or other well fluids into the atmosphere is called a ______．
A.Flow
B.Breakout
C.Kick
D.Blowout
[判断题]FGD是Flue Gas Desulfurization）的简称。( )
A.正确
B.错误
[单选题] Any vessel ______ any other shall keep out of the way of the vessel ______.
A. overtaking／overtaken
B. being overtake／being overtaken
C. overtaking／being overtaken
D. being overtaking／overtaken
[单选题]门助推气瓶安全销的作用
Door assist gas cylinder safety pin function is：（ ）
A.防止作动撞针机构
To prevent actuation of the firing peroussion mechanism
B.在伸上位时锁定作动筒
The lock actuator in extension position
C.确保在DISARMED模式
Ensure that the DISARMED mode
[单选题]氧气系统渗漏测试使用（ ）
What gas is use to oxygen system leakage test?
A.氧气源
the oxygen source
B.氮气源
the Nitrogen source
C.氢气源
The hydrogen source
[多选题]气体绝缘开关设备（Gas lnsulated Switchgear,GIS)的优点有（ ）。
A.占地面积小
B.检修周期长
C.运行可靠性高
D.电磁污染小
[多选题]气腹机运行一段时间后，报警并显示GAs supply，可能的原因是？
A.连接错了钢瓶， 使用了氧气瓶。
B.减压阀没有打开。
C.钢瓶阀门没有打开。
D.老版本气腹机，流速过大，使用中央供气，速度跟不上。
E.减压阀设置压力过小，低于0.6.
[单选题]Each cylinder should be scavenged before the charged air is compressed.
A.good
B.better
C.best
D.well
[单选题]Never so serious mechanical damage before.
A.our ship has experienced
B.did our ship sustained
C.our ship has been
D.has our ship sustained
[单选题] Barges and vessels are ballasted before departure to ______．
A.Improve their stability
B.Avoid polluting waters where liquid ballast may not be discharged
C.Prevent free surface effects
D.Allow movement of liquids within the barge for tank cleaning
[单选题]We prefer all the spare partson board before departure.
A.to send
B.to be sent
C.for being sent
D.being to send
[单选题] Before starting to hoist provisions，
Which should be checked ________．
A.Hoist rope is not kinked
B.Multiple part lines are not twisted around each other
C.The hook is centrally located over the load
D.All of the above
[单选题] Do you need to measure oxygen levels before entering an enclosed space?
A. Yes, always
B. No
C. Not if you measure for toxic gases
D. Yes, but not if you ventilate properly first for 24 hours
[单选题] Before sailing, mariners on duty shall check the headings of magnetic compass by comparison with _____.
A. ship’s clock
B. engine movement recorder
C. repeaters
D. navigation lights
