单项选择题
It is abnormal that when the engine is being turned by the turning gear or by hand, （）.
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
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相关考题
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单项选择题
Increasing the temperature of a fuel will reduce its （）.
A.viscosity
B.pressure
C.resistance
D.setting point -
单项选择题
Increasing differential pressure of an oil filter indicates that （）
A.it is dirty
B.it is leaky
C.it has been renewed
D.all the above -
单项选择题
Increased air （） will raise scavenge efficiency and allow a greater mass of air to be compressed； more fuel may now be burned giving an increased power.
A.specific volume
B.density
C.viscosity
D.calorific value
