Heat Treating

1. Heat Treating is a process used to.

A. Harden and temper steel.

B. Stress relieve and anneal steel.

C. Change and / or improve the characteristics, properties, qualities and condition of metal alloys.

D. A & B Above.

2. Heating an alloy to a specified temperature, hold / soaking for a specified time, cooling / quenching at a specified rate, in a specified medium, is known as.

A. Hardening.

B. Heat treating.

C. Tempering.

D. Stress relieving.

3. List four cooling / quenching mediums. ( type in your anwser ).





4. A major difference between the hardening and the annealing process is.

A. The temperature to which the alloy is heated.

B. The soaking time at temperature.

C. The quench rate and medium.

D. Both A and B above.

5. Match the desired outcome with the relevent heat treating process.

A. Increases tensile strength.

B. Increases mallealbility.

C. Increases toughness.

D. Wear resistance.

6. Select the heat treating process order for which the quenching rate is from the quickest to the the slowest.

A. Annealing - Hardening - Stress Releiving.

B. Hardening - Normalizing - Annealing.

C. Tempering - Stress Releiving - Case Hardening.

D. Hardening - Annealing - Tempering.

7. Drawing refers to which heat treating process.

A. Normalizing.

B. Stress releiving.

C. Tempering.

D. Hardening.

8. All metal alloys are heat treatable.

A. True.

B. False.

9. Welding in its self is a heat treating process.

A. True.

B. False

10. What does HAZ stand for? ( type in your answer ).


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