Engineering Materials - Section 1 (7)

Directions to Solve

49.

Thermoplastic materials are those materials which

A.	are formed into shape under heat and pressure and results in a permanently hard product
B.	do not become hard with the application of heat and pressure and no chemical change occurs
C.	are flexible and can withstand considerable wear under suitable conditions
D.	are used as a friction lining for clutches and brakes

Answer: Option B

Explanation:

No answer description available for this question.

50.

Specify the sequence correctly

A.	Grain growth, recrystallisation, stress relief
B.	Stress relief, grain growth, recrystallisation
C.	Stress relief, recrystallisation, grain growth
D.	Grain growth, stress relief, recrystallisation

Answer: Option C

Explanation:

No answer description available for this question.