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191.

Dry blast cleaning involves

A.	Blasting the surface with abrasive material	B.	Blasting the surface with air only
C.	Blasting the surface with sand	D.	Blasting the surface with oil
E.	None of the above

192.

Tumbling is done to

A.	Clean the surface of small parts	B.	Stress relieve the components
C.	Get surface finish	D.	To plate the surface
E.	To break the material into pieces

193.

Gun metal is an alloy containing

194.

Which one of the following is used for thermocouple junctions?

195.

Heating elements for domestic and industrial electrical applications are made of

196.

Surveying tapes are generally made of

197.

Steam condenser tubes are generally made of

198.

For drills having diameter upto 12.7 mm.

A.	Parallel shank is provided	B.	Tapered shank is provided
C.	Shank may be either of (A) or (B)

199.

Material used for resistances is generally

200.

Bearing lining