A.the discharge valve is open
B.the control box glass is broken
C.pressure from the control cylinders is detected
D.the control cylinders have been completely discharged
您可能感興趣的試卷
你可能感興趣的試題
A.machinery spaces
B.cargo compartments
C.living quarters
D.galley
A.the single hook at the top of the raft
B.two lines passed under the raft
C.the towing bridle
D.All of the above
A.put back in service if some CO2 remains
B.hydrostatically tested
C.retagged
D.recharged
A.CO2
B.fresh air
C.the tested compartment's air
D.water
A.fuel supply
B.exhaust ventilation
C.supply and exhaust ventilation
D.mechanical and natural ventilation
最新試題
Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
Fire extinguishing agents used on Class C fires must be（）.
Control valves of a CO2 system may be located within the protected space when（）.
How is the external flotation bladder of an immersion suit inflated?（）
Fire hose should be washed with（）.
Except in rare cases，it is impossible to extinguish a shipboard fire by（）.
Halon fire extinguishers are NOT effective when used on which types of fires?（）
Fire hose couplings（）.
Foam is a very effective smothering agent and（）.
Foam-type portable fire extinguishers are most useful in combating fires involving（）.