Hooke’s Law MCQ and Stress-Strain Curve MCQ – Strength of Materials

41. The loss of stress with the time at constant strain is called

1. relaxation
2. creep
3. shrinkage
4. ductility

42. If σ and E for a body of volume 2 × 10⁵ mm³ are 10 N/mm² and 1 × 10⁵ N/mm², Resilience of the body is

1. 20 N mm
2. 10 N mm
3. 200 N mm
4. 100 N mm

43. In stress-strain curve of structural steel with high carbon content, which of the following zone is not prominent?

1. Plastic zone
2. Elastic zone
3. Strain hardening
4. Yield zone

44. A member which is subjected to reversible tensile or compressive stresses may fail at stresses lower than the ultimate stresses of the material. This property of metal is called

1. Plasticity of the metal
2. Workability of the metal
3. Fatigue of the metal
4. Creep of the metal