A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the （）
(1) scavenging air is cooling the exhaust gases
(2) exhaust cycle time is longer
A.(1) only
B.(2) only
C.both (1) and (2)
D.neither (1) nor (2)
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A.acidity has increased
B.viscosity has decreased
C.demulsibility has improved
D.foaming is guaranteed to occur
A.increase the fuel oil temperature
B.decrease the fuel oil temperature
C.decrease the fuel oil supply pressure
D.increase the air supply
With regards to a diesel engine crankcase explosion, the most violent is the（）
(1) primary explosion
(2) secondary explosion
A.(1) only
B.(2) only
C.both (1) and (2)
D.neither (1) or (2)
A.increased heat transfer
B.fireside erosion
C.high steam demand
D.overheated tubes
A.gas composition
B.gas temperature
C.pressure
D.timing
最新試題
Proper filtering and straining of fuel oil is important because the （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Maximum horsepower of a diesel engine is attained （）.
Lube oil cannot be efficiently filtered if its （）.
An automated diesel engine should normally shut down due to （）
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
White smoke exhausting from an operating diesel engine may indicate （）.
A thrust bearing is used with a propulsion diesel engine to （）.