A.early injection timing
B.worn orifices in the injection nozzles
C.worn or scored cylinder liners
D.using a fuel with too low of a cetane number
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A.during the valve overlap period
B.with only the exhaust valve open
C.at a pressure below atmospheric
D.without cooling the cylinders or pistons
A.excessive piston to liner clearance
B.excessive dirt beneath the piston crown that reduces heat transfer
C.faulty nozzle spray
D.all of the above
A.an increased flash point
B.higher lube oil pressures
C.an increased viscosity
D.lower lube oil pressures
A.The fuel metering will vary
B.The fuel will explode
C.The cylinder head will crack
D.The engine will stop
A.Leaking fuel injectors
B.Lower than normal compression
C.Delayed fuel injection
D.All of the above are correct
最新試題
Which of the following items don’t belong to dock repair works?（）
Cold weather starting of a diesel engine may be made easier by（）
The main purpose of port State control is not to（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
The shipboard oil pollution emergency plan will be invalid after （）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
The cetane rating of diesel fuel is an indication of the （）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）