Workshop Technology MCQs Archives

161. Notching is the operation of

cutting a sheet of metal in a straight line along the length

removal of metal to the desired shape from the edge of a plate

cutting a sheet of metal through part of its length and then bending the cut portion

bending a sheet of met

✅ The correct answer is option B.

162. Which one of the following material will require the largest size of riser for the same size of casting?

Aluminium

Cast iron

Steel

Copper

✅ The correct answer is option C.

163. In spot welding, the distance between the nearest edge of the plate and centre of weld should be equal to

1.5 d

3 d

6 d

✅ The correct answer is option B.

164. A stripper-plate machine is used to draw the pattern from the mould.

Yes

✅ The correct answer is option A.

165. In sheet metal work, the cutting force on the tool can be reduced by

grinding the cutting edges sharp

increasing the hardness of tool

providing shear on tool

increasing the hardnes

✅ The correct answer is option A.

166. To prevent the body of the blade from jamming in the saw cut, the teeth of blade are

strengthened

sharpened

set

all of these

✅ The correct answer is option C.

167. The material which can be best cut with oxygen cutting process is

mild steel

brass

copper

aluminium

✅ The correct answer is option A.

168. The surface to be machined is marked on the pattern by

red colour

yellow colour

black colour

blue colour

✅ The correct answer is option A.

169. Spot welding is used for welding

lap joints in plates having 0.025 mm to 1.25 mm thickness

lap joints in plates having thickness above 3 mm

butt joints in plates having 0.025 mm to 1.25 mm thickness

butt joints in plates

✅ The correct answer is option A.

170. A sand employed on the faces of the pattern before moulding, is called

green sand

dry sand

loam sand

parting sand

✅ The correct answer is option D.