Q.1
Materials like lead (Pb) and tin (Sn) can be hot worked at room temperature.
  • a) True
  • b) False
Q.2
Hot working of brittle materials is not possible as they do not show yielding behaviour.
  • a) True
  • b) False
Q.3
In the hot working of materials, porosity may increase in the material rather than decrease.
  • a) True
  • b) False
Q.4
Hot working does not affect the properties like tensile strength, hardness etc. when the process is performed properly.
  • a) True
  • b) False
Q.5
In hot working of material, the continuous reformation of grains can be possible in material.
  • a) True
  • b) False
Q.6
In cold working, larger deformation can be obtained more rapidly than that obtained by the hot working.
  • a) True
  • b) False
Q.7
The surface finish obtained by cold working is better than that achieved by the hot working of material.
  • a) True
  • b) False
Q.8
In the hot working of steel material, steel metal may lose its strength due to carbon loss.
  • a) True
  • b) False
Q.9
The hot working process is mainly used for achieving the high dimensional accuracy of the metal.
  • a) True
  • b) False
Q.10
The cold working of material facilitates its cutting operation due to a decrease in its ductility.
  • a) True
  • b) False
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