單項選擇題

With supercharging a larger mass of air is supplied to the cylinder by blowing it in under pressure, which is the best means to （） of the engine.

A.increase the exhaust temperature
B.increase the power of
C.reduce the speed
D.increase the fuel consumption

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單項選擇題

Whilst the engine is turning, check to see that no water is leaking into the crankcase, scavenge air belt, or from （）.

A.exhaust valves
B.starting valves
C.fuel valves
D.the indicator cocks

單項選擇題

While engine is in operation the piston moves up and down, thus causing the rotation of the （）.

A.crankcase
B.slipper
C.cam housing
D.crankshaft