A.vent line
B.overflow line
C.feed line
D.sounding tube
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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
A.burned exhaust valves
B.excessive spring compression
C.spring surge
D.worn valve seats
A.worn valve seats
B.worn main bearing
C.excessive valve clearance
D.weak rocker arm springs
最新試題
Under MARPOL Code the ship to which it applies has to carry （）
The cetane rating of diesel fuel is an indication of the （）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
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.
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
Using a file without a handle may result in （）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
The condensers located in various stages of a flash evaporator are cooled by（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.