A.Impurities
B.Lube oil
C.Gasoline
D.Diesel fuel
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A.moisture
B.dirt
C.acid
D.air
A.relieve excess fuel oil pressure during the “off” fire cycle
B.admit water to the dry pipe
C.throttle the forced draft fan output for proper combustion
D.reduce excess steam pressure in the boiler
A.60 to75
B.80 to 95
C.100 to 115
D.120 to 135
A.heat conduction into the injected fuel oil
B.heat conduction into the water jacket wall
C.water circulation through passages in the holder
D.fuel oil circulation through passages in the holder
A.slightly acidic condition
B.slightly alkaline condition
C.overtreatment of water
D.neutral condition of water
最新試題
Diesel engine control can be obtained by the bridge （）.
White smoke exhausting from an operating diesel engine may indicate （）.
In a simple mechanical governor, the （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
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 （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Maximum horsepower of a diesel engine is attained （）.
An automated diesel engine should normally shut down due to （）
Lube oil cannot be efficiently filtered if its （）.
A diesel engine piston ring face is in direct contact with the （）.