單項(xiàng)選擇題The cetane number rates fuels for diesel engines according to its ()

A.antiknock characteristics
B.ignition qualities
C.rates of vaporization
D.viscosity


您可能感興趣的試卷

你可能感興趣的試題

1.單項(xiàng)選擇題Diesel engine starting difficulties due to cold intake air temperatures, can be overcome by using a/an()

A.increase in starting air pressure
B.increase in lube oil viscosity
C.compression expansion device
D.jacket water heater

2.單項(xiàng)選擇題The burning of fuel oil in a diesel engine having a high sodium content, will cause ()

A.corrosion and grooving of exhaust valves
B.corrosion and gumming of the fuel injection pump
C.salt deposits in the exhaust manifold
D.slag deposits in the fuel injection equipment

3.單項(xiàng)選擇題The consistent burning of fuel oil with a high sulfur content in a diesel engine will result in ()

A.clogged fuel injection pumps
B.increased cylinder liner wear
C.intake valve stem corrosion
D.varnish deposit on pistons

4.單項(xiàng)選擇題Which of the following problems may occur when using fuel oil with a high sulphur content?()

A.Injection lag
B.Lube oil dilution
C.Pre-ignition
D.Corrosion

5.單項(xiàng)選擇題Burning fuel with a high sulfur content in a diesel engine will ()

A.increase thermal efficiency
B.cause clogging of the fuel system
C.increase the ability of the engine to start in cold weather
D.produce corrosion in the cylinder and exhaust system at low loads

最新試題

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

題型:?jiǎn)雾?xiàng)選擇題

The shipboard oil pollution emergency plan will be invalid after ()

題型:?jiǎn)雾?xiàng)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:?jiǎn)雾?xiàng)選擇題

Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()

題型:?jiǎn)雾?xiàng)選擇題

Diesel engine air start system check valves are opened by ()

題型:?jiǎn)雾?xiàng)選擇題

The main purpose of port State control is not to()

題型:?jiǎn)雾?xiàng)選擇題

() is not installed on the main switchboar.

題型:?jiǎn)雾?xiàng)選擇題

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

題型:?jiǎn)雾?xiàng)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:?jiǎn)雾?xiàng)選擇題

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

題型:?jiǎn)雾?xiàng)選擇題