| Strain energy stored in a member is given by |
A) 0.5 × stress × volume
B) 0.5 × strain × volume
C) 0.5 × stress × strain × volume
D) 0.5 × stress × strain
| Strain energy is defined as : |
A) Energy stored in the body when stresses upto the breaking joint
B) Maximum energy which can be stored in a body
C) Energy stored in the body when stressed upto elastic limit
D) None of the above
| Resilient Modulus (Mr) can be represented by: |
A) Mr = Stress / Strain
B) Mr = Deviatric stress / Recoverable strain
C) Mr = Direct stress / Linear strain
D) Mr = Direct stress / Volumetric strain
| Modulus of toughness is the area of the stress-strain diagram upto |
A) Rupture Point
B) Yield Point
C) Limit of Proportionality
D) Ultimate Point
| Resistance of a material against reversal of stresses, is |
A) tensile strength
B) compressive strength
C) fatigue strength
D) damping
| On the principles of Strain Energy, in a rod AB of length L placed vertically with end A fixed at top and end B with a flange, a load W is released from a height h (< L) and hits on to the flange.In order to reduce the axial stress in the rod, which of the following should be done? i. Reduce the modulus of elasticity of the material ii. Increase the modulus of elasticity of the material iii. Increase the length of the rod iv. decrease the length of the rod |
A) (i) and (iii)
B) (i) and (iv)
C) (ii) and (iii)
D) (ii) and (iv)
| The work done to strain a material within elastic limits is known as |
A) resistance
B) virtual work
C) resilience
D) work modulus
| The amount of energy absorbed by the material under impact load is known as |
A) Durability
B) Toughness
C) Ductility
D) Hardness
| The difference between the strain energy required to generate a given stress in a material and the material’s elastic energy at that stress, is known as |
A) Relaxation
B) Isoelastic strain
C) Resilience
D) Elastic hysteresis
| Two shaft of different diameter d1 and d2 are made from same material and are of same length under the action of same torque T the ratio of strain energy V1/V2 |
A) [d2/d1]3
B) [d1/d2]2
C) [d2/d1]2
D) [d2/d1]4
