A.ignition quality of the fuel
B.high heating value of the fuel
C.amount of carbon residue after combustion
D.internal flow resistance in the injectors
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A.has little or no internal friction
B.has a lower effective compression ratio
C.operates with scavenge air under a positive pressure
D.operates without energy absorbing intake and exhaust strokes
A.Decreased connecting rod bearing clearance
B.Increased connecting rod bearing clearance
C.Decreased compression ratio
D.Increased compression ratio
A.less fuel will enter the cylinder
B.higher the cylinder combustion temperature
C.more complete the fuel combustion
D.more rapid the rise in combustion pressure
A.dust entering the high pressure stage
B.lube oil carbonization
C.discharge pulsations
D.inter-stage vapor lock
A.increased compression ratio
B.decreased compression ratio
C.increased bearing clearance
D.decreased bearing clearance
最新試題
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
Which of the following items don’t belong to dock repair works?（）
The treatment of the fuel oils involves storage, heating, filtering and（）
The shipboard oil pollution emergency plan will be invalid after （）
Under MARPOL Code the ship to which it applies has to carry （）
Diesel engine air start system check valves are opened by （）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
（） is not installed on the main switchboar.
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.