單項(xiàng)選擇題

Early fuel injection timing is indicated by the cylinder pressure being（）

A.above normal with a below normal exhaust temperature
B.above normal with a normal exhaust temperature
C.below normal with a normal exhaust temperature
D.below normal with an above normal exhaust temperature

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單項(xiàng)選擇題

Critical speeds occurring within the operating speed range of a main propulsion diesel engine may be changed, or have their damaging effects reduced by a/an （）

A.engine support vibration isolator
B.detuner or viscous fluid damper
C.lightened crankshaft flywheel
D.spherically seated crankshaft bearing

單項(xiàng)選擇題

Performance of a turbocharged engine can be improved by（）

A.decreasing the amount of valve overlap
B.preheating the air intake
C.after-cooling the intake air
D.preheating light fuel

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Early fuel injection timing is indicated by the cylinder pressure being（）

你可能感興趣的試題

Critical speeds occurring within the operating speed range of a main propulsion diesel engine may be changed, or have their damaging effects reduced by a/an （）

Performance of a turbocharged engine can be improved by（）

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