A.leaking delivery valve
B.excessive bearing end play
C.plugged injector spray hole
D.increased plunger stroke
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A.graphite packing
B.sealing compound
C.lubricating oil
D.gaskets
A.Decrease the air density
B.Increase the exhaust temperature
C.Decrease the lube oil temperature
D.Increase the air density
A.Clogged oil pump suction screens
B.Increased oil operating temperatures
C.Sticking piston rings
D.All of the above
A.improper fuel rack positing
B.lengthy exhaust valve duration
C.extend operation at light load
D.excessively early injection timing
A.crankcase
B.cylinder head
C.valve cover
D.engine frame
最新試題
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
The cetane rating of diesel fuel is an indication of the （）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
Cold weather starting of a diesel engine may be made easier by（）
If separating effect is not good, which measure should be taken （）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
（） is not installed on the main switchboar.