A.high firing pressure
B.overload of that particular cylinder
C.smoky exhaust
D.cooling water temperature rise
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A.valve overlap
B.volumetric efficiency
C.turbulence of the air change
D.fuel efficiency
A.greater overall efficiency
B.greater fuel economy
C.lower horsepower
D.lower compression ratio
A.blows out the exhaust gases
B.supplies oxygen for combustion
C.cools the valves and cylinder walls
D.all of the above
A.delivering more air into the cylinder than it would normally receive during an ordinary charging process
B.forcing the products of combustion out of the cylinder with the fresh air charge
C.collecting the air charge at the cleaner
D.combustion and expansion of hot gas
A.an incorrect diesel generator governor speed droop adjustment
B.a faulty reverse power relay within the main circuit breaker assembly
C.unsynchronized isochronous load distribution adjustments
D.a different speed setting on each unit
最新試題
Diesel engine air start system check valves are opened by （）
Cold weather starting of a diesel engine may be made easier by（）
（） is not installed on the main switchboar.
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）