A.is always less than 100%
B.is always more than 100%
C.is always equal to 90%
D.is always less than 90%
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A.principle
B.principal
C.cause
D.case
A.two-stroke
B.four-stoke
C.long-stroke
D.short-stroke
A.bedplate, connecting rods
B.crankshaft, the connecting rods
C.frames, crossheads
D.crankshaft, the cylinder
A.the information
B.the formation
C.the scatter
D.the friction
A.the cylinder weight
B.the cylinder bore
C.the cylinder length
D.the cylinder cover
最新試題
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
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Routine monitoring of a diesel engine should include （）.
In a simple mechanical governor, the （）.
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White smoke exhausting from an operating diesel engine may indicate （）.
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