單項選擇題

Diesel engine crankshaft deflection readings are generally taken at four crank positionsGood engineering practice requires the deflection gage or indicator to be（）

A.placed as near the crankpin axis as possible
B.removed each time the crankshaft is repositioned
C.left in place for all four readings
D.reset to zero for all four readings

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單項選擇題

Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will（）

A.increase engine power
B.increase engine load
C.decrease engine power
D.improve fuel economy

單項選擇題

Diesel engine injection lag is caused by（）

A.compressibility of the fuel
B.high fuel oil supply flow
C.scored plunger and barrel packing
D.excessive air turbulence

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Diesel engine crankshaft deflection readings are generally taken at four crank positionsGood engineering practice requires the deflection gage or indicator to be（）

你可能感興趣的試題

Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will（）

Diesel engine injection lag is caused by（）