Strength of Materials MCQ Questions Answers Mechanical Engineering

Strength of Materials (SoM) Mechanical Engineering MCQ Questions Answers

1) The energy absorbed in a body, when it is strained within the elastic limits,is known as

a) Strain energy

b) resilience

c) proof resilience

d) modulus of resilience

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Option – b)

2) Hardness is the resistance to

a) indentation

b) scratching

c) abrasion

d) all of these

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Option – d)

3) Resilience of a material is considered when it is subjected to

a) fatigue

b) creep

c) shock loading

d) resonant condition

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Option – c)

4) Which of the following has no unit ?

a) Bulk modulus

b) Kinematic viscosity

c) Surface tension

d) Strain

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Option – d)

5) The independent elastic constant for homogeneous and isotropic material are

a) E,G,KV

b) E,G,K

c) E,G,V

d) E,G

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Option – d)

6) The number of elastic constant for a othotropic material are

a) 2

b) 3

c) 9

d) 21

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Option – c)

7) The maximum values of Poisson’s ratio for an elastic material is

a) 0.25

b) 0.5

c) 0.75

d) 1.0

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Option – b)

8) The number of elastic constants for a completely anisotropic elastic material are

a) 3

b) 4

c) 21

d) 25

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Option – c)

9) An axially loaded bar is subjected to a normal stress  of 173 MPa. The shear in the bar is

a) 75 MPa

b) 86.5 MPa

c) 100 MPa

d) 122.3 MPa

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Option – b)

10) The ratio of maximum shear stress to maximum normal stress at any point in a solid circular shaft is

a) 1

b) 1.5

c) 2

d) 1.67

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Option – a)
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