A.valve overlap
B.volumetric efficiency
C.turbulence of the air change
D.fuel efficiency
您可能感興趣的試卷
你可能感興趣的試題
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
A.improve fuel flow volume
B.cool the exhaust valves
C.reduce the intake air charge density
D.increase the temperature of exhaust gases
最新試題
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
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（）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
The treatment of the fuel oils involves storage, heating, filtering and（）
Using a file without a handle may result in （）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
The main purpose of port State control is not to（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）