單項(xiàng)選擇題If the low level alarm of the diesel fuel day tank fails to function, you can expect trouble from()

A.overheated injection pumps
B.water condensed in the cylinders
C.fuel dilution of the lube oil
D.air in the fuel system


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1.單項(xiàng)選擇題Before starting a diesel engine, you should always()

A.check the pyrometer readings
B.check the crankcase oil level
C.check the fuel oil strainers
D.clean the fuel system

2.單項(xiàng)選擇題Sludge formation in a diesel engine lube oil system is caused by()

A.carbonization of oils from the combustion chambers
B.emulsions of lube oil and water
C.coagulation of unburned fuel below the piston rings
D.all of the above

3.單項(xiàng)選擇題A diesel engine is turned at normal cranking speed, but fails to fireThis can occur from ()

A.low lube oil temperature
B.low starting air temperature
C.air in the fuel injection
D.water in the starting air system

4.單項(xiàng)選擇題Which of the following statements represents the reason for rolling over a diesel engine with the cylinder indicator cocks open prior?()

A.To test the starting system
B.To remove air bubbles from the jacket water
C.To ensure that the lube oil system delivers pressure
D.To ensure foreign material (water etc) is not present in the cylinders

5.單項(xiàng)選擇題In a diesel engine, a positive displacement type blower is usually ()

A.gear drive by the engine
B.driven by an exhaust gas turbine
C.driven by a camshaft
D.driven by separate motor

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

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

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

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

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