Fundamentals of Machine Design (3141907) MCQs

MCQs of Basics of stress and strain

Showing 1 to 10 out of 39 Questions
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1.
Which of the following statement is correct?
(a) The stress is the pressure per unit area.
(b) The strain is expressed in mm.
(c) Hook's law holds good up to the breaking point.
(d) Stress is directly proportional to strain within the elastic limit.
Answer:

Option (d)

2.
The unit of strain is
(a) N-mm
(b) N/mm
(c) mm
(d) no unit
Answer:

Option (d)

3.
The force of resistance per unit area offered by a body against the deformation is called
(a) Strain
(b) Stress
(c) Modulus of rigidity
(d) Poisson's ratio
Answer:

Option (b)

4.
The unit of Young's modulus is same as that of stress.
(a) True
(b) False
Answer:

Option (a)

5.
Modulus of rigidity is the ratio of
(a) stress to strain
(b) tensile stress to tensile strain
(c) compressive stress to compressive strain
(d) shear stress to shear strain
Answer:

Option (d)

6.
Modulus of elasticity is the ratio of
(a) stress to strain
(b) stress to the original length
(c) deformation to the original length
(d) all of these
Answer:

Option (a)

7.
The Young's modulus of a material is 125 GPa and Poisson’s ratio is 0.25. The modulus of rigidity of the material is
(a) 30 GPa
(b) 50 GPa
(c) 80 GPa
(d) 100 GPa
Answer:

Option (c)

8.
The ratio of lateral strain to linear strain is called
(a) modulus of elasticity
(b) modulus of rigidity
(c) bulk modulus
(d) Poisson’s ratio
Answer:

Option (d)

9.
The property of a material that enables it to resist fracture due to high impact loads, is called toughness.
(a) True
(b) False
Answer:

Option (a)

10.
The property of a material which enables it to be drawn into wires with the application of a tensile force is called
(a) plasticity
(b) elasticity
(c) ductility
(d) malleability
Answer:

Option (c)

Showing 1 to 10 out of 39 Questions
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