A.behind
B.far from
C.adjacent to
D.in front of
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A.power output
B.friction and wear
C.indicated pressure
D.rated horsepower
A.viscosity
B.density
C.velocity
D.electricity
A.higher
B.lower
C.low
D.high
A.be less than
B.be larger than
C.be as large as
D.not be so large as
A.bosses
B.through bolts
C.machine-turned recesses
D.long studs
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Proper filtering and straining of fuel oil is important because 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 （）.
In a simple mechanical governor, the （）.
A diesel engine piston ring face is in direct contact with the （）.
To determine if the lube oil filter elements need changing, （）.
The main purpose of the piston oil scraper rings is to （）.
White smoke exhausting from an operating diesel engine may indicate （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Routine monitoring of a diesel engine should include （）.