單項選擇題The four-stroke cycle is so called because it takes () to complete the processes needed to convert the energy in the fuel into work.

A.two strokes of the piston
B.four strokes of the piston
C.one revolution of the crankshaft
D.four revolutions of the crankshaft


您可能感興趣的試卷

你可能感興趣的試題

3.單項選擇題() allows the engine to be placed wherever is most suitable, as they no longer have to be aligned with reduction gearing and shafting as is the case with conventional installations.

A.Diesel engine propulsion
B.Diesel electric propulsion
C.Steam engine propulsion
D.Gas turbine propulsion

4.單項選擇題() can be found on most medium to large merchant vessels even if the main engine is either a steam turbine or 2-stroke crosshead engine.

A.The medium speed 4-stroke trunk piston engine
B.The low speed 2-stroke crosshead engine
C.The medium speed 2-stroke crosshead engine
D.The low speed 4-stroke trunk piston engine

5.單項選擇題The difference between a supercharged engine and an un-supercharged engine is that ().

A.the later
B.the latter
C.the former
D.the farmer

最新試題

As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()

題型:單項選擇題

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

題型:單項選擇題

Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()

題型:單項選擇題

The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()

題型:單項選擇題

Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()

題型:單項選擇題

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.

題型:單項選擇題

The ISPS Code consists of a mandatory section-Part A, which shows()

題型:單項選擇題

A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()

題型:單項選擇題

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()

題型:單項選擇題

() is not installed on the main switchboar.

題型:單項選擇題