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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When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
In using reduction gears to obtain efficient propeller speeds, （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
Diesel engine control can be obtained by the bridge （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Routine monitoring of a diesel engine should include （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
The main purpose of the piston oil scraper rings is to （）.