單項(xiàng)選擇題

The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by （）

A.regulating the level of corrosion inhibitor in the primary cooling system
B.the level of the freshwater expansion tank
C.varying the engine load to meet temperature requirements
D.the operation of the thermostatic valve

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單項(xiàng)選擇題

For diesel engine piston cooling, lubricating oil can be supplied to the pistons by a/an （）.

A.oil spray
B.oil bath
C.oil control rings
D.drilled passage through the camshaft

單項(xiàng)選擇題

In a four-stroke/cycle diesel engine, the camshaft rotates at （）

A.twice the crankshaft speed
B.half the crankshaft speed
C.the same speed as that of the crankshaft
D.a speed independent of that of the crankshaft

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The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by （）

你可能感興趣的試題

For diesel engine piston cooling, lubricating oil can be supplied to the pistons by a/an （）.

In a four-stroke/cycle diesel engine, the camshaft rotates at （）