1. Melting temperature
2. Recrystallisation temperature
3. Boiling temperature
4. None of these
Recrystallisation temperature
1. Type and purity of metal
2. Grain size
3. Annealing time
4. All of these
All of these
1. Produce hard surface on a ductile interior
2. Improve machinability
3. Change grain size
4. Relive internal stresses
5. All of these
All of these
1. Improve mechanical and electrical properties
2. Increase resistance to wear, heat and corrosion
3. Remove gases
4. Change the chemical composition
5. All of these
All of these
1. Heating of metal is done in a solid state
2. Cooling of metal is done in a solid state
3. Heating or cooling of metal is done in a solid state
4. None of these
Heating or cooling of metal is done in a solid state
1. Is effective only with certain alloys
2. Depends upon cooling rate
3. Both (a) and (b)
4. None of these
Both (a) and (b)
1. Normalizing
2. Annealing
3. Tempering
4. Spheroid sing
Normalizing
1. Ultimate tensile strength increases
2. Yield point increases
3. Ductility decreases
4. All of these
All of these
1. Refine grain structure
2. Remove dislocations caused in the internal structure due to hot working
3. Remove strains caused by cold working
4. All of these
All of these
1. Strain hardening
2. Dislocation
3. Fracture
4. None of these
Dislocation