單項(xiàng)選擇題

（）is harmful for fuel pumps, fuel valves, cylinder liner, exhaust valve seats, and the turbocharger blades as well.

A.Bad combustion of the fuel
B.Bad atomization of the fuel
C.Liquid contaminants
D.Solid contaminants

在線練習(xí)

你可能感興趣的試題

單項(xiàng)選擇題

The booster pump, which supplies diesel oil to（） , should have a possibility of being powered by compressed air or by emergency power.

A.the main engines
B.the auxiliary engines
C.the emergency generator engine
D.the auxiliary engines and the main engine(s)

單項(xiàng)選擇題

A full-flow 50μm filter is installed ,（） so the injection system components on the main engine are safeguarded.

A.as close to the main engine as possible
B.as close to the main pump as possible
C.just before the fuel valve
D.just before the booster pump

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