A. Cracks and blow holes are eliminated
B. Ductility and impact strength improves
C. Appreciable strain hardening is produced
D. Yield stress, hardness and fatigue strength is not at all affected
Related Mcqs:
- The increase in hardness of metal due to its cold working is termed as the _______________ hardening?
A. Work
B. Age
C. Induction
D. Flame - _____________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working?
A. Solid solution hardening
B. Screw dislocation
C. Strain ageing
D. Twinning - Hot working of lead is carried out at_________________?
A. 75° C
B. 373° K
C. 150° C
D. Room temperature - Which metal is protected by the layer of its own oxide ?
A. Iron
B. Silver
C. Calcium
D. Aluminium - In hot wire anemometer used for gas flow measurement, the wire is normally made of ______________________?
A. Copper
B. Platinum
C. Constantan
D. Chromium - Cold work tool steel should have_________________?
A. High toughness
B. Poor hardenability
C. High wear resistance
D. All A., B. & C. - Cold worked steel parts are normally subjected to_________________?
A. Normalising
B. Hardening
C. Annealing
D. Shot peening - The heat treatment process to which castings and the steel balls produced by cold heading are subjected is____________________?
A. Tempering
B. Normalising
C. Annealing
D. None of these - The process of heating the cold pressed metallic powder is called ______________ in powder metallurgy?
A. Precipitation
B. Fusion
C. Sintering
D. Agglomeration - The heat treatment process applied to cold formed steel parts is ____________________?
A. Normalising
B. Tempering
C. Artificial ageing
D. Solution annealing
