Mechanical Engineering Test Preparations On Engineering Materials Part 1

Test Preparation on Mechanical Engineering Test Preparations On Engineering Materials Part 1

1.

Specify the sequence correctly

1Grain growth, recrystallisation, stress relief
2Stress relief, grain growth, recrystallisation
3Stress relief, recrystallisation, grain growth
4Grain growth, stress relief, recrystallisation

2.

Thermoplastic materials are those materials which

1are formed into shape under heat and pressure and results in a permanently hard product
2do not become hard with the application of heat and pressure and no chemical change occurs
3are flexible and can withstand considerable wear under suitable conditions
4are used as a friction lining for clutches and brakes

3.

Which of the following material has maximum ductility?

1Mild steel
2Copper
3Nickel
4Aluminium

4.

Eutectoid steel consists of

1wholly pearlite
2wholly austenite
3pearlite and ferrite
4pearlite and cementite

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