A、A.acidity of the oil
B、B.pour point of the oil
C、C.flash point of the oil
D、D.viscosity of the oil
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A、A.temperature of the intake air B、B.friction within the engine C、C.mechanical condition of the supercharger D、D.mechanical condition of the turbocharger
A、has little or no internal friction B、has a lower effective compression ratio C、operates with scavenge air under a positive pressure D、operates without energy absorbing intake and exhaust strokes
A、Overcoming sliding friction B、Overcoming rolling friction C、Overcoming fluid friction D、Overcoming oil wedge friction
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