A.wide compression rings are used
B.oil rings are located above the piston
C.chromium plating is used on all piston rings
D.oil rings are located near the bottom of the piston skirt
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A.runs out of fuel
B.has low lubricating oil pressure
C.exceeds a set maximum speed
D.has high cooling water temperature
A.prevent any lubricant from reaching
B.prevent excessive lubrication from reaching the combustion space
C.Provide metal-to-metal contact to seal the cylinder against blow-by
D.assure a positive means of scraping carbon accumulation from the cylinder
A.Dull black appearance
B.Bright appearance
C.Thin layer of lacquer
D.Thick oily film
A.noise coming from that air starting valve
B.continuous operation of the starting air compressor
C.zero air pressure in the air starting system
D.overheated starting air pipe to the cylinder head
A.stop the engine by cutting off the cooling water supply
B.stop the engine by closing the air intake
C.slow the engine but not stop it
D.slow the engine to half of normal load
最新試題
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
The cetane rating of diesel fuel is an indication of the （）
Under MARPOL Code the ship to which it applies has to carry （）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Cold weather starting of a diesel engine may be made easier by（）
The shipboard oil pollution emergency plan will be invalid after （）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
（） is not installed on the main switchboar.
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）