ASSEMBLY - Practice Mode

1) What is the name of the heat treatment process for reheating the hardened steel to a temperature below 400 Degree Centigrade followed by cooling?

Annealing Hardening Tempering Normalising

Correct Answer: Tempering

Explanation:

2) Why the tempering process carried out in steel?

To add cutting ability To relive strain and stress To refine the grain structure To regulate the hardness and toughness

Correct Answer: To regulate the hardness and toughness

3) What is the purpose of annealing in steel?

To add cutting ability To increase wear resistance To relieve the internal stress To refine the grain structure of the steel

Correct Answer: To relieve the internal stress

4) What is the purpose of key?

To transmit torque Assembly purpose Lock the assembly part Permit clearance between mating part

Correct Answer: To transmit torque

Explanation:

Muntz metal is also called as Yellow Metal, Muntz Metal consists of 60 percent copper and 40 percent zinc. Muntz metal is named after the English businessman George F. Muntz, who patented it in 1832. Muntz metal must be worked hot. Muntz metal is used to make machine parts that require resistance to corrosion.

5) What is the ratio of key way taper?

01:19 01:20 01:50 0.111111111

Correct Answer: 0.111111111

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