单项选择题
A.look for a CO2 extinguisher B.use a soda acid extinguisher C.shut off the fuel supply D.smother the fire with rags
The three basic elements necessary for any fire are （）....
单项选择题The three basic elements necessary for any fire are （）.
A.heat, gas, and flames B.fuel, heat, and oxygen C.heat, nitrogen, and fuel D.fuel oil, nitrogen, and oxygen
Engines for lifeboats are required to have sufficient f...
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
If a fire occurs in the boiler room as a result of a le...
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
