單項選擇題A sudden drop in diesel engine cylinder compression pressure can be caused by()

A.a leaking fuel injector nozzle
B.a clogged air filter
C.excessively early fuel injection
D.malfunctioning valves


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題Which of the following statements is correct for the design and installation of diesel engine cooling water systems?()

A.An alarm device with audible and visible signals is required for all cooling water systems
B.Propulsion engines with bores over 200 mm are to be fitted with cooling water jackets
C.Each totally enclosed cooling system shall be provided with a suitable head tank
D.Drain cocks are to be provided at the lowest points of all cylinder water jackets

2.單項選擇題High exhaust back pressure will result in an increase in ()

A.turbocharger efficiency
B.engine power output
C.carbon deposits on fuel injectors
D.cylinder scavenging

4.單項選擇題Trunk type diesel engine pistons are effectively cooled when heat is()

A.radiated through the engine block
B.transferred to water cooled cylinder walls
C.conducted through the piston crown
D.transferred to escaping exhaust gases

5.單項選擇題Maintaining the proper fuel oil temperature will result in ()

A.the elimination of valve wear
B.improved atomization
C.a decrease in cylinder blow-by
D.an increase in cylinder blow-by

最新試題

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

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

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

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

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()

題型:單項選擇題

The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()

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

Using a file without a handle may result in ()

題型:單項選擇題

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

The treatment of the fuel oils involves storage, heating, filtering and()

題型:單項選擇題