A.corrosion fretting
B.insufficient lubrication
C.abnormal wear
D.fatigue failure
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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
A.spark from a plug in the pre-combustion chamber
B.electrical discharge from the distributor
C.heat of compression within the cylinder
D.heat from the fuel injection nozzle
A.engine operating speed
B.an air manifold
C.a hydraulic distributor
D.individual cams and valve gear
最新試題
The treatment of the fuel oils involves storage, heating, filtering and()
The cetane rating of diesel fuel is an indication of the ()
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()
Engine parameters shall be corresponded to NOx Technical Files. This is required by ()
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()
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.