A.a service tank
B.a collecting tank
C.a sump
D.a settling tank
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A.the outlet of oil
B.the outlet of water
C.the bowl periphery
D.the center of bowl
A.bowl periphery
B.bowl center
C.upper surface
D.lower surface
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
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
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White smoke exhausting from an operating diesel engine may indicate （）.
To determine if the lube oil filter elements need changing, （）.
Lube oil cannot be efficiently filtered if its （）.
A diesel engine piston ring face is in direct contact with the （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
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 main purpose of the piston oil scraper rings is to （）.
What is the function of the thrust bearing?（）
Proper filtering and straining of fuel oil is important because the （）.