單項(xiàng)選擇題

The mechanical exhaust valve operation system is replaced by（）in an electronic controlled ME engine.

A.a system with a Hydraulic Power Supply (HPS) unit
B.a system with roller guides for exhaust valves
C.a system with an electronically controlled Alpha Lubricator
D.a system directly powered by electric motor

你可能感興趣的試題

單項(xiàng)選擇題

（）is not a feature of the electronic controlled engines.

A.Lower fuel consumption
B.Better balanced cylinder power
C.A shorter overhaul period
D.Less smoke emission

單項(xiàng)選擇題

If a camshaft-less engine has a normal injection pressure at rated speed, the injection pressure will be at slow speed（）

A.too low
B.a little lower
C.a little higher
D.exactly the same

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The mechanical exhaust valve operation system is replaced by（）in an electronic controlled ME engine.

你可能感興趣的試題

（）is not a feature of the electronic controlled engines.

If a camshaft-less engine has a normal injection pressure at rated speed, the injection pressure will be at slow speed（）

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