A.salinity
B.alkalinity
C.acid
D.sanitary
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A.should be correctly carried out
B.should correctly be taken place
C.should carded with care
D.must to carry out with great care
A.occurred
B.occurring
C.not happening
D.occur
A.gases
B.paints
C.inhibitors
D.detergent
A.agent
B.shipchandler
C.surveyor
D.engineer
A.principle
B.principal
C.cause
D.case
最新試題
In using reduction gears to obtain efficient propeller speeds, （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
A diesel engine piston ring face is in direct contact with the （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
Combustion knock occurring in a diesel engine can be caused by （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
Maximum horsepower of a diesel engine is attained （）.