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Stress and Strain Online Exam Quiz

Important questions about Stress and Strain. Stress and Strain MCQ questions with answers. Stress and Strain exam questions and answers for students and interviews.

What is the point P shown on the stress strain curve?

Options

A : a. Upper yield point

B : b. Yield plateau

C : c. Elastic limit

D : d. Ultimate point

What is the point P shown in the stress-strain curve?

Options

A : a. Lower yield point

B : b. Elastic limit

C : c. Proportionality limit

D : d. Breaking point

What is the point shown in the stress strain curve?

Options

A : a. Elastic limit

B : b. Lower yield point

C : c. Yield plateau

D : d. Lower strain point

A rigid beam ABCD is hinged at D and supported by two springs at A and B as shown in the given figure. The beam carries a vertical load P and C. the stiffness of spring at A is 2K and that of B is K. What will be the ratio of forces of spring at A and that of spring at B?

Options

A : a. 4

B : b. 3

C : c. 2

D : d. 1

The dimension of strain is?

Options

A : a. LT?²

B : b. N/m²

C : c. N

D : d. Dimensionless

What is tensile strain?

Options

A : a. The ratio of change in length to the original length

B : b. The ratio of original length to the change in length

C : c. The ratio of tensile force to the change in length

D : d. The ratio of change in length to the tensile force applied

Find the strain of a brass rod of length 250mm which is subjected to a tensile load of 50kN when the extension of rod is equal to 0.3mm?

Options

A : a. 0.025

B : b. 0.0012

C : c. 0.0046

D : d. 0.0014

Find the elongation of an steel rod of 100mm length when it is subjected to a tensile strain of 0.005?

Options

A : a. 0.2mm

B : b. 0.3mm

C : c. 0.5mm

D : d. 0.1mm

A tensile test was conducted on a mild steel bar. The diameter and the gauge length of bat was 3cm and 20cm respectively. The extension was 0.21mm. What is the value to strain?

Options

A : a. 0.0010

B : b. 0.00105

C : c. 0.0105

D : d. 0.005

i) Strain is a fundamental behaviour of a material. ii) Strain does not have a unit.

Options

A : a. Both i and ii are true and ii is the correct explanation of i

B : b. Both i and ii are true but ii is not the correct explanation of i

C : c. i is true but ii is false

D : d. ii is true but i is false

A tensile test was conducted on a steel bar. The gauge length of the bar was 10cm and the extension was 2mm. What will be the percentage elongation?

Options

A : a. 0.002

B : b. 0.02

C : c. 0.2

D : d. 2

The lateral strain is ___________

Options

A : a. The ratio of axial deformation to the original length

B : b. The ratio of deformation in area to the original area

C : c. The strain at right angles to the direction of applied load

D : d. The ratio of length of body to the tensile force applied on it

A rod 200cm long is subjected to an axial pull due to which it elongates about 2mm. Calculate the amount of strain?

Options

A : a. 0.001

B : b. 0.01

C : c. 0.02

D : d. 0.002

Some structural members subjected to a long time sustained loads deform progressively with time especially at elevated temperatures. What is such a phenomenon called?

Options

A : a. Fatigue

B : b. Creep

C : c. Creep relaxation

D : d. Fracture

Find the strain of a brass rod of length 100mm which is subjected to a tensile load of 50kN when the extension of rod is equal to 0.1mm?

Options

A : a. 0.01

B : b. 0.001

C : c. 0.05

D : d. 0.005

Which law is also called as the elasticity law?

Options

A : a. Bernoulli’s law

B : b. Stress law

C : c. Hooke’s law

D : d. Poisson’s law

A member which does not regain its original shape after removal of the load producing deformation is said __________

Options

A : a. Plastic

B : b. Elastic

C : c. Rigid

D : d. None of the mentioned

The body will regain it is previous shape and size only when the deformation caused by the external forces, is within a certain limit. What is that limit?

Options

A : a. Plastic limit

B : b. Elastic limit

C : c. Deformation limit

D : d. None of the mentioned

What kind of elastic materials are derived from a strain energy density function?

Options

A : a. Cauchy elastic materials

B : b. Hypo elastic materials

C : c. Hyper elastic materials

D : d. None of the mentioned

What the number that measures an object’s resistance to being deformed elastically when stress is applied to it?

Options

A : a. Elastic modulus

B : b. Plastic modulus

C : c. Poisson’s ratio

D : d. Stress modulus

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