單項(xiàng)選擇題One advantage of dry cylinder liners used in a diesel engine is the()

A.lower thermal expansion rates than wet liners
B.greater heat transfer rate than wet liners
C.greater wear resistance than wet liners
D.procedure to replace dry liners is simpler than for wet liners


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Intake air flow from a diesel engine turbocharger is directly proportional to engine()

A.exhaust gas pressure
B.exhaust gas temperature
C.speed
D.load

2.單項(xiàng)選擇題Which of the listed conditions can be used to determine if lube oil has been diluted by fuel? ()

A.Viscosity is decreased
B.Octane number is altered
C.Pump speed is decreased
D.Blower’s speed is decreased

3.單項(xiàng)選擇題It is easier to replace a dry cylinder liner than a wet one because()

A.of the thin wall thickness
B.honing makes it easier to maintain the desired oil ilm
C.water seals are not required
D.it fits more loosely due to a decrease in heat transfer through the composite wall

4.單項(xiàng)選擇題Which of the turbo-charging methods listed directs the exhaust gases to the turbine at fairly uniform velocity and pressure?()

A.Constant pressure
B.Pulse
C.constant velocity
D.Axial flow

5.單項(xiàng)選擇題Which of the following problems will occur if the needle valve in a fuel injection nozzle sticks in the open position?()

A.Fuel injection timing will change
B.Nozzle operation will be unaffected
C.Fuel will leak into the drain line
D.Fuel will not be delivered

最新試題

()connectors hold best if a wire is accidentally pulled or a connection becomes loose.

題型:?jiǎn)雾?xiàng)選擇題

Cold weather starting of a diesel engine may be made easier by()

題型:?jiǎn)雾?xiàng)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:?jiǎn)雾?xiàng)選擇題

One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()

題型:?jiǎn)雾?xiàng)選擇題

During the diesel engine running, the water level of F.W expansion tank should normally kept in the () level of glass tube.

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

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

題型:?jiǎn)雾?xiàng)選擇題

“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()

題型:?jiǎn)雾?xiàng)選擇題

The condensers located in various stages of a flash evaporator are cooled by()

題型:?jiǎn)雾?xiàng)選擇題

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

題型:?jiǎn)雾?xiàng)選擇題