A.deprival of oxygen
B.a water spray
C.soda-acid
D.foam
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A.combustible material
B.ignition source
C.oxygen
D.A and B and C
A.Two derricks
B.A derrick and a crane
C.Two cranes
D.A crane and a winch
A.360°
B.270°
C.180°
D.90°
A.less
B.more
C.many
D.much
A.a warp end
B.a mooring winch
C.a worm gear
D.a barrel
最新試題
Under MARPOL Code the ship to which it applies has to carry （）
（） is not installed on the main switchboar.
Diesel engine air start system check valves are opened by （）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
Which of the following items don’t belong to dock repair works?（）
If separating effect is not good, which measure should be taken （）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.