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241.

Oil pressure gauge is used:

A.	To check the quality of oil	B.	To indicate oil temperature in pipeline
C.	To warn the operator of any irregularity	D.	All are correct

242.

Grease is semi-fluid lubricant used for:

A.	Slow moving parts	B.	Not easily accessible part
C.	Both (a) & (b)	D.	None of these

243.

Lublication reduces:

A.	Wear between two rubbing surfaces	B.	Friction effect in moving parts
C.	Heat from moving part	D.	All are correct

244.

Vegetable lubricants are made from:

A.	Castor oil	B.	Cotton seed oil
C.	Olive oil	D.	All are correct

245.

Mineral lubricants are obtained from:

A.	Castor and cotton seed oil	B.	Crude petroleum
C.	Both (a) & (b)	D.	None of these

246.

Suitable lubricant for 2-stroke engines is:

A.	Crude petroleum lubricant	B.	Vegetable lubricant
C.	Mineral lubricant	D.	None of these

247.

Suitable lubricant for 4-stroke engines is:

A.	Mineral lubricant	B.	Vegetable lubricant
C.	Animal fat lubricant	D.	All are correct

248.

A pump used in force-feed lubrication system is:

A.	Centrifugal pump	B.	Reciprocating pump
C.	Positive displacement pump	D.	None of these

249.

Excessive oil consumption in engines is due to:

A.	High speed of engines	B.	Excess going of oil into combustion chamber
C.	More pressure of line	D.	All are correct

250.

Lubricants are available in the form of:

A.	Fluid	B.	Semi-fluid
C.	Semi-solid	D.	All are correct