1. . For steel, which one of the following properties can be enhanced upon annealing?
(A) Hardness
(B) Toughness
(C) Ductility
(D) Resilience
2. . In Annealing, cooling is done in which of the following medium?
(A) Air
(B) Water
(C) Oil
(D) Furnace
3. . In normalizing, cooling is done in which of the following medium?
(A) Air
(B) Water
(C) Oil
(D) Furnace
4. . Process annealing is applied to which kind of materials?
(A) Steel castings
(B) Low carbon steels
(C) High carbon steels
(D) Medium carbon steels
5. . The cooling rate must be _________ the critical cooling rate for hardening of steel by quenching.
(A) Higher than
(B) Lower than
(C) Equal to
(D) Half of
6. . Normalizing is best used for which kind of materials?
(A) Steel castings
(B) Steel wires
(C) High carbon steels
(D) Low and medium carbon steels
7. . How is cooling of the material done in normalizing process?
(A) Furnace
(B) Cooling tower
(C) Still air
(D) Liquid chamber
8. . Which of the following is not a stage of annealing?
(A) Heating
(B) Soaking
(C) Tempering
(D) Quenching