Chapter9a

Five functions of the oil in an engine lubrication system are?

The resistance of an oil to flow is known as its ______.

Oil that flows freely has a _____ viscosity

the oil used in reciprocating engines has a relatively ____ viscosity.

The measure of the change in viscosity of oil with a given change in temperature is known as the _____ ____.

An engine lubricating oil whose viscosity changes very little for a given change in temperature has a _____ viscosity index.

The point at which a liquid will begin to give off ignitable vapors is known as the _____ point.

Aviation 80 engine oil has the same viscosity as SAE ____.

The use of straight mineral oil in an aircraft reciprocating engine is associated with what conditions?

The lubricating properties of straight mineral oil _____ as good as those of ashless disperant oil

Synthetic lubricating oils are ____ viscosity oils

If incompatible oil has been added to a turbine engine, it is often necessary to ____ and ____ the oil system before refilling with the proper oil.

Turbine engine oils __ ___ use a standard identification system.

SAE numbers ____ ____ used to identify turbine oils.