A.greater overall efficiency
B.greater fuel economy
C.lower horsepower
D.lower compression ratio
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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
A.improve fuel flow volume
B.cool the exhaust valves
C.reduce the intake air charge density
D.increase the temperature of exhaust gases
A.Piston wrist pin bushing
B.turbine bearing
C.Spring bearing
D.Diesel engine main bearing
最新試題
The treatment of the fuel oils involves storage, heating, filtering and（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
（） is not installed on the main switchboar.
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Diesel engine air start system check valves are opened by （）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Cold weather starting of a diesel engine may be made easier by（）
If separating effect is not good, which measure should be taken （）