A.allow impurities to settle out of the fuel
B.allow air to escape from the fuel
C.make fuel available for immediate use
D.all of the above
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A.cam rollers on the camshaft
B.spring force
C.air pressure on top of the valve differential piston
D.air pressure on the bottom of the valve differential piston
A.vent line
B.overflow line
C.feed line
D.sounding tube
A.Holding the valve open for a long period
B.Increasing the starting air pressure used
C.Opening the stating air valve quickly
D.Reducing the starting air valve size
A.corrosion fretting
B.insufficient lubrication
C.abnormal wear
D.fatigue failure
A.sludge
B.water
C.micro-organism growth
D.all of the above
最新試題
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
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Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
The treatment of the fuel oils involves storage, heating, filtering and（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
To proceed to the assistance of a ship in distress is（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.