A.tempering
B.annealing
C.quenching
D.galvanising
Related Mcqs:
- The process of reheating the hardened steel to some temperature below the critical range, followed by any rate of cooling is known as
- The process of reheating hardened steel to temperature below the lower critical temperature followed by any desired rate of cooling, is known as
- The process of heating iron base alloys to approzimately 40?C above the critical temperature range followed by cooling to below that range in still air at ordinary temperature is known as
- If an article develops insufficient hardening after quenching, the defect can be corrected by
- Cold worked components are generally subjected to
- The process in which steel is heated 20? to 40?C below the lower critical temperature, held there for a prolonged period and then allowed to cool slowly in the furnace is known as
- In order to improve machinability of steels, the treatment generally done is
- The operation that usually follwos hardening is
- If a piece of steel is reheated to a temperature of 200?C to 250?C immediately after quenching, the process is known as
- If a sample of steel shows unsymmetrical deformation of a piece in quenching, the probable cause could be
