Mechanical Behaviour and Testing of Materials Practice Test 2

1. Cast materials show better ductility than wrought materials.

2. Which crystal structure materials possess the best ductility properties?

3. Coarse pearlite is harder than fine perlite for the same composition of Steel.

4. Which microconstituent of Steel is hardest?

5. Which material doesn’t show fatigue limit?

6. With an increase in temperature, elastic modulus of metals ____ and stiffness ____

7. What is the reason of low toughness of grey cast iron?

8. What is term referred to fatigue failure resulting from the strains caused by expansion and contraction in thermal cycling?

9. What is SI unit of hardness?

10. The ability of a metal workpiece to undergo plastic deformation without being damaged is known as ____