A.higher speed required
B.flywheel-effect
C.lower starting temperatures
D.higher compression pressures
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A.most critical in a four-stroke cycle diesel engine
B.most critical in a two-stroke/cycle diesel engine
C.most critical in a four-stroke/cycle diesel engine if it is turbocharged
D.of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine
A.The oil control rings will seal improperly and wear rapidly
B.The piston will overheat due to insufficient lubrication
C.Excessive oil will remain on the cylinder wall
D.Light brown smoke will emanate from the engine exhaust
A.keep piston crown temperatures elevated for smoother combustion
B.reduce the possibility of overheating the top compression ring
C.help retain the heat of compression to prevent ignition delay
D.help retain the heat of compression to prevent combustion knock
A.dispersant additives
B.floc point
C.alkalinity additives
D.ignition quality
A.starting the engine hot
B.knurling the piston skirt
C.operating an overheated engine
D.using scuff resistant piston rings
最新試題
Diesel engine air start system check valves are opened by （）
The condensers located in various stages of a flash evaporator are cooled by（）
Under MARPOL Code the ship to which it applies has to carry （）
Using a file without a handle may result in （）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
If separating effect is not good, which measure should be taken （）