A.inside micrometer
B.feeler gauge
C.adjustable trammel
D.sighting device
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A.starting air and fuel pumps
B.piston cooling pumps
C.exhaust valves
D.all of the above
A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the （）
(1) MEP is lower and the scavenging air is cooling the exhaust gases
(2) valve overlap in a four-stroke
A.(1) only is correct
B.(2) only is correct
C.both (1) and (2) are correct
D.Neither (1) or (2) are correct
A.water
B.babbitt
C.iron or steel
D.acids
A.Impurities
B.Lube oil
C.Gasoline
D.Diesel fuel
A.moisture
B.dirt
C.acid
D.air
最新試題
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
Lube oil cannot be efficiently filtered if its （）.
Proper filtering and straining of fuel oil is important because the （）.
The function of diesel engine piston compression rings is to （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
White smoke exhausting from an operating diesel engine may indicate （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
Routine monitoring of a diesel engine should include （）.