Assembly MCQ with Answers

Assembly MCQ with Answers

101) What is the temperature that change of structure to austenite starts at 723? in heat treatment process?

Answer is:

Lower critical temperature

102) What is the process if hot steel is cooled slowly the old structure is retained and it will have fine grains that makes it easily machined?

Answer is:

Annealing

103) What is the name if hot steel cooled rapidly to form a new structure ?

Answer is:

Martensite

104) What is the process to add cutting ability and wear resistance on steel?

Answer is:

Hardening

105) What is the heat treatment process to remove extreme brittleness and induce toughness and shock resistance in steel?

Answer is:

Tempering