A.just below the crankcase
B.the oil cup for the exhaust valve
C.the pan for collecting drain fuel oil
D.oil circulating pump
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A.oil
B.sea water
C.air
D.fresh water
A.half the engine rotational speed
B.twice the engine rotational speed
C.the engine rotational speed
D.four times the engine rotational speed
A.increase its quality
B.obtain complete burning
C.reduce its weight
D.all of the above
A.a separator
B.oil
C.water
D.an oil collecting space
A.a service tank
B.a settling tank
C.an expansion tank
D.a double bottom tank
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What is the function of the thrust bearing?（）
Maximum horsepower of a diesel engine is attained （）.
Combustion knock occurring in a diesel engine can be caused by （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
The function of diesel engine piston compression rings is to （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
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Diesel engine control can be obtained by the bridge （）.