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231.

The temperature at which vapour flashes momentarily is:

A.	Pour point	B.	Flash point
C.	Fire point	D.	All are correct

232.

The temperature at which flame persists approximately for 5 seconds is:

A.	Pour point	B.	Flash point
C.	Fire point	D.	All are correct

233.

Gravity test is done by using the:

A.	Hydrometer	B.	Hygrometer
C.	Thermometer	D.	All are correct

234.

Splash system of lubrication is generally used in:

A.	Single cylinder & stationary engine	B.	Multi-cylinder engines
C.	Tractor engines	D.	All are correct

235.

A pump used in force feed lubricating system is:

A.	Positive displacement type	B.	Gear type
C.	Vane type	D.	All are correct

236.

Force-feed lubrication system is commonly used in:

A.	High speed multi-cylinder engine	B.	Tractor engines
C.	Truck and automobile engine	D.	All are correct

237.

In force feed lubrication system pump is driven by:

A.	Camshaft	B.	Crankshaft
C.	Both (a) & (b)	D.	None of these

238.

Lubrication system of tractor engine develops pressure of about:

A.	3 kg/cm2	B.	5 kg/cm2
C.	8 kg/cm2	D.	12 kg/cm2

239.

Oil filters are made of:

A.	Cloth	B.	Paper
C.	Felt or wire screen	D.	All are correct

240.

A type of oil filter used in tractor engine is:

A.	Full flows type	B.	Bi-pass type
C.	Both (a) & (b)	D.	None of these