a) drawing
b) rolling
c) forging
d) piercing
Category: Mechanical Engineering Mcqs
The shrinkage allowance for cast iron pattern is________________?
a) 10 mm/m
b) 15 mm/m
c) 20 mm/m
d) 26 mm/m
In welding copper alloys with TIG arc welding
a) direct current with straight polarity is used
b) direct current with reversed polarity is used
c) alternating current is used
d) any one of these
sand wash is a casting defect which
a) results in a mismatching of the top and bottom parts of a casting
b) results in general enlargement of a casting
c) occurs near the in gates as rough lumps on the surface of a casting
d) occurs as sand patches on the upper surface of a casting
a moving mandrel is used in
a) wire drawing
b) tube drawing
c) metal cutting
d) forging
a two high rolling mill consists of two rolls which rotate
a) at the same speed and in the same direction
b) at the same speed but in opposite direction
c) at different speeds and in the opposite direction
d) at different speeds and in the same direction
scribing block is used to
a) Hold the round bars during marking
b) Check the trueness of flat surfaces
c) Locate the centres of round bars
d) Check the surface roughness
A file removes the metal during___________________?
a) both forward and return strokes
b) forward stroke
c) return stroke
d) none of these