A.to change the lube oil
B.have the lube oil purified
C.have the lube oil burnt
D.to analyze the lube oil
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A.not less than twice
B.greater at least twice than
C.not greater twice than
D.larger three times than
A.not be changed
B.be changed
C.should not be changed
D.should be changed
A.water discharges from the indicator cocks
B.no water is leaking into crankcase
C.no water in the scavenge belt
D.the rpm is lower than the speed of Dead Slow Ahead
A.viscosity
B.pressure
C.resistance
D.setting point
A.it is dirty
B.it is leaky
C.it has been renewed
D.all the above
最新試題
The ability of the governor to prevent fluctuations in engine speed is termed （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
An automated diesel engine should normally shut down due to （）
Proper filtering and straining of fuel oil is important because the （）.
White smoke exhausting from an operating diesel engine may indicate （）.
A diesel engine piston ring face is in direct contact with the （）.
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 highest pressure in a diesel engine cylinder normally occurs （）.