Lubrication systems test; Questions and Answers
Lubrication systems test; Questions and Answers List five functions of the oil in an engine lubrication system. Cools, Cleans, seals and cushions, prevents corrosion, and reduce friction. The resistance of an oil to flow is known as its ________. Viscosity. Oil that flows freely has a ____ viscosity. Low. The oil used in reciprocating engines has a relatively _____ (high or low) viscosity. High. The measure of the change in viscosity with a given change in temperature is know as the ______ ________. Viscosity index. An engine lubricating oil whose viscosity changes very little for a given change in temperature has a _______ viscosity index. High.
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