Mechanical Behaviour and Testing of Materials Practice Test 1

1. Positive edge dislocation is denoted by ______

2. High angle grain boundaries provide easy atom diffusion in a solid state.

3. Which statement is false?

4. Which factor deteriorates yield strength?

5. Large plastic deformation corresponds to _____ of grains along the direction of applied stress.

6. What is the stacking sequence for FCC structure?

7. Which one of the following factor decreases the tensile strength?

8. Which one of the following, is not a method of introducing imperfections in metals?

9. What is the range of dislocation density in pure and unhardened metals?

10. Tensile strength increases with increasing ______