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
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
To proceed to the assistance of a ship in distress is（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
The shipboard oil pollution emergency plan will be invalid after （）
If separating effect is not good, which measure should be taken （）
Which of the following items don’t belong to dock repair works?（）
The main purpose of port State control is not to（）