單項(xiàng)選擇題

To minimize the formation of carbon deposits on fuel injection nozzles, you should （）

A.avoid using liquid-cooled nozzles whenever possible
B.avoid low cooling water temperatures
C.avoid prolonged overloading of the engine
D.make certain the gasket seal between the nozzle and cylinder head is tight

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單項(xiàng)選擇題

In a simple mechanical governor, the （）

A.centrifugal force rotates the ball-head
B.flyweight centrifugal force is balanced by spring force
C.flyweight centrifugal force is balanced by hydraulic pressure
D.speeder spring alone actuates the fuel control rod

單項(xiàng)選擇題

If a diesel engines exhaust temperature is abnormally high, the cause could be（）

A.too light of a load
B.injection timing is too early
C.overloading of the engine
D.too low of a compression ratio

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To minimize the formation of carbon deposits on fuel injection nozzles, you should （）

你可能感興趣的試題

In a simple mechanical governor, the （）

If a diesel engines exhaust temperature is abnormally high, the cause could be（）