Strength of Materials - Interview Questions | Exam2Win

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1. The intensity of stress which causes unit strain is called

A. unit stress

B. bulk modulus

C. modulus of rigidity

D. modulus of elasticity

E. principal stress.

Explanation: ANSWER : : modulus of elasticity Explanation :

2. Modulus of rigidity is defined as the ratio of

A. longitudinal stress and longitudinal strain

B. volumetric stress and volumetric strain

C. lateral stress and lateral strain

D. shear stress and shear strain

E. linear stress and lateral strain.

Explanation: ANSWER : : shear stress and shear strain Explanation :

3. The value of modulus of elasticity for mild steel is of the order of

A. 2.1xl05 kg/cm2

B. 2.1 X 106 kg/cm2

C. 2.1 x 107 kg/cm2

D. 0.1 xlO6 kg/cm2 (

E. opt 5

Explanation: ANSWER : : 2.1 X 106 kg/cm2 Explanation :

4. Deformation per unit length in the direction of force is known as

A. strain

B. lateral strain

C. linear strain

D. linear stress

E. unit strain.

Explanation: ANSWER : : linear strain Explanation :

5. A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under

A. uniform throughout

B. increase uniformly

C. first increase and then decrease

D. increase uniformly first and then in-crease rapidly

E. increase rapidly first and then uniformly.

Explanation: ANSWER : : increase uniformly first and then in-crease rapidly Explanation :

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