STRENGTH OF MATERIAL - STRESS & STRAIN - 1

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1. The property of a material by virtue of which it regains its original dimensions after the withdrawal of the external load to which it is subjected is known as

A) Plasticity
B) Elasticity
C) Rigidity
D) Ductility

... Answer is B


 

2. The materials which exhibit the same elastic properties in all direction are called

A) Inelastic
B) Homogenous
C) Isotropic
D) Isentropic

... Answer is C

 

3. The shearing stresses of a loaded beam at the neutral axis will be

A) Minimum
B) Maximum
C) Average
D) None of the above

... Answer is B

 

4. In a closed coiled helical spring which is subjected to axial tensile force the nature of stress set up in the wire is

A) Bending Stress
B) Tensile stress
C) Shear stress
D) Compressive stress

... Answer is C

 

5. Pricipal planes are those planes on which 

A) Maximum shear stress acts
B) Major principal stress acts
C) Shear stress is zero
D) Minor principal stress acts

... Answer is C

 

6. The stress included in a member due to suddenly applied load is how much times the stress for gradual loading.

A) Half
B) same
C) Twice
D) Thrice

... Answer is C

 

7. Due to torsion the shear stress intensity is minimum at

A) Axis of the shaft
B) Surface of the shaft
C) inside the layer
D) None of these

... Answer is A

 

8. When a member is rigidly fixed at the ends and its temperature falls it is under what stress

A) Tensile
B) Compressive
C) Shear
D) none of these

... Answer is B

 

9. When shear force at a apoint is zero then bending moment at that point will be

A) zero
B) Minimum
C) Infinity
D) Maximum

... Answer is D

 

10. Hook's law is valid upto

A) Elastic limit
B) Proportionality limit
C) Yield point
D) Plastic limit

... Answer is B

 

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