单项选择题
Engines for lifeboats are required to have sufficient fuel to operate for how many hours?（）
A.6 hours
B.12 hours
C.18 hours
D.24 hours
点击查看答案&解析
相关考题
-
单项选择题
If a fire occurs in the boiler room as a result of a leaking fuel line, you should FIRST （）.
A.notify the engineer on watch
B.isolate and secure the piping
C.throw sand on the fire
D.extinguish the fire using a combination nozzle with applicator -
单项选择题
The four basic components of a fire are chain reaction, heat, fuel, and （）.
A.carbon monoxide
B.oxygen
C.carbon dioxide
D.any gaseous substance -
单项选择题
The FIRST step to take in fighting an engine room fire resulting from a ruptured fuel oil service line, is to （）.
A.evacuate all engine room personnel
B.fight the fire with hand portable extinguishers
C.activate the main CO2 bank
D.stop the flow of leaking fuel oil
