A.higher torque but lower brake horsepower
B.lower torque but higher brake horsepower
C.higher torque and lower brake horsepower
D.lower torque and higher brake horsepower
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A.reduce the wear of bearing surfaces
B.cool the bearing surfaces
C.assist in sealing bearing surfaces
D.all of the above
A.Non-harmonic speed
B.Critical speed
C.Maximum speed
D.Design maximum speed
A dirty fuel oil filter is can be detected by （）
Ⅰ.fuel oil analysis
Ⅱ.observing the pressure drop across the filter
A.Ⅰonly
B.Ⅱonly
C.eitherⅠorⅡ
D.neitherⅠnor
A.increase the density of the intake air
B.decrease turbocharger power usage
C.reduce exhaust gas temperature
D.compensate for turbocharger PRM fluctuations
A.high oil pressure
B.excessive bearing end play
C.plugged oil control rings
D.engine overload
最新試題
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
The main purpose of port State control is not to（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Under MARPOL Code the ship to which it applies has to carry （）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Using a file without a handle may result in （）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.