A.power output
B.friction and wear
C.indicated pressure
D.rated horsepower
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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
A.a mark
B.a bolt
C.a dowel pin
D.a measuring tool
最新試題
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
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 （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Proper filtering and straining of fuel oil is important because the （）.