Mechanical Behaviour and Testing of Materials Practice Test 7

1. Creep rate according to Cottrell equation depends on the activation energy to move ______

2. What is not a variable which affects tensile properties?

3. Which process doesn’t occur at high temperature?

4. Co is added in Ni-base alloy so as to increase ___________ temperature.

5. ___________ dominates at all temperatures but above the normalized stress of 10-2.

6. At _________________ the grain boundaries of polycrystalline metals act as ________ for cracks.

7. Work per unit volume of the material is a known modulus of toughness.

8. Which of the following tensile property is dimensionless?

9. What is the rate controlling factor in high temperature creep?

10. The elongation that occurs at constant load is called ____