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單項(xiàng)選擇題

Permitting a diesel engine fuel oil day tank to run dry can cause （）

A.overheated injection pumps
B.water condensation in the cylinders
C.fuel dilution of the lube oil
D.air in the fuel system

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單項(xiàng)選擇題

Water in the fuel can prevent the engine from starting, prevent it from developing full power, or （）

A.run at an irregular speed
B.create high lube oil temperature
C.cause the engine to over-speed
D.cause blue smoke in the exhaust

單項(xiàng)選擇題

In a single acting, four-stroke/cycle diesel engine, the power impulse in an individual cylinder occurs （）

A.once every crankshaft revolution
B.once every two crankshaft revolutions
C.once every piston stroke
D.twice every piston stroke