A.At the beginning of the compression stroke
B.At the beginning of the suction stroke
C.At the end of the working stroke
D.At the end of the exhaust stroke
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A.The watch keeping personnel
B.The chief engineer
C.The person on a bunker barge
D.Any of the above
A.Cast iron
B.Cast steel
C.Forged steel
D.Aluminum
A.At the top
B.At the bottom
C.In the top
D.In the bottom
A.Misalignment
B.Length
C.Strength
D.Stresses
A.Hot bearing
B.Starting valves
C.Unequal distribution of load
D.Excessive crankshaft clearance
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A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
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A diesel engine piston ring face is in direct contact with the （）.
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The main purpose of the piston oil scraper rings is to （）.
Combustion knock occurring in a diesel engine can be caused by （）.