A.The oil mist detectors
B.The smoke detectors
C.An oily water monitor
D.Oil discharge monitoring and controlling system
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A.detract
B.extract
C.pump up
D.pump down
A.How they finished
B.How did they finished
C.That how they finished
D.That how did they finished
A.6%
B.8%
C.10%
D.12%
A.Class A
B.Class B
C.Class C
D.Class D
A.class A
B.Class B
C.Class C
D.Class D
最新試題
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
The treatment of the fuel oils involves storage, heating, filtering and（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Cold weather starting of a diesel engine may be made easier by（）
The main purpose of port State control is not to（）
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（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
Which of the following items don’t belong to dock repair works?（）
（） is not installed on the main switchboar.