Lubrication Fundamentals - Quiz

Quiz Question

1.	The inherent ability of oil to maintain component separation is called _____________ .
		Friction
		Adhesiveness
		Lubricity
		Resistance
2.	The following figure shows which kind of Lubrication?
		Hydro static-film Lubrication
		Hydro dynamic Lubrication
		Elastohydro dynamic Lubrication
		Boundary Lubrication
3.	__________ is a result of metal-to-metal contact under conditions of high load, speed or temperature.
		Adhesive wear
		Corrosive wear
		Fatigue wear
		Abrasive wear
4.	_________base oils are made from polyalphaolens (PAO), which are chemically engineered synthesized base stocks.
		Group I
		Group II
		Group III
		Group IV
5.	__________ are characterized by straight chains of hydrocarbons where the hydrogen and carbon atoms are connected in a long linear composition, similar to a chain.
		Paraffinic oils
		Naphthenic oil
		Synthetic
		None of the above
6.	Lubricants with inadequate viscosity for the application may lead to which of the following?
		Increased metal-to-metal contact
		Increased friction and wear
		Increased oil consumption
		All of the above
7.	The viscosity index of a lubricating fluid refers to how much the viscosity of the fluid changes due to temperature.
		True
		False
8.	The ___________is the lowest temperature at which the vapor above an oil sample will ignite when a flame is passed over it.
		Flash point
		Fire point
		Auto-ignition point
		Pour point
9.	_________ is a lubricant’s ability to resist the process of hydrolysis, or the chemical reaction in which a chemical compound, like oil, is broken down by reaction with water. When a lubricant successfully resists hydrolysis it achieves hydrolytic stability.
		Oil resistance
		Water resistance
		Dynamic resistance
		Chemical resistance
10.	The ___________ of a lubricant indicates its ability to neutralize contaminants such as combustion by-products and acidic materials.
		Total neutrality number
		Total base number
		Total acidic number
		None of the above
11.	Additives enhance lubricant functioning by performing two critical functions i.e. they lessen destructive processes and enhance beneficial properties of the base oil.
		True
		False
12.	___________ added to lubricants minimize deposit formation in the high temperature areas of an engine.
		Detergents
		Dispersants
		Water
		None of the above
13.	Absolute or dynamic viscosity is generally expressed in units known as
		Centipoise
		Meters/min
		Visco-meters
		None of the above
14.	____________ occurs when long viscosity index improver molecules align themselves in the direction of the stress or flow.
		Temporary shear
		Permanent shear
		No shear
		None of the above
15.	The tendency of a liquid to evaporate is referred to as volatility.
		True
		False