# Strain In Strength of Materials MCQ Questions & Answers

Strain In Strength of Materials MCQs : This section focuses on the "Strain In Strength of Materials". These Multiple Choice Questions (MCQs) should be practiced to improve the Strain In Strength of Materials skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

The dimension of strain is?

A. LT-2
B. N/m2
C. N
D. Dimensionless

Question 2

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

A. 0.001
B. 0.01
C. 0.02
D. 0.002

Question 3

A solid cube is subjected to equal normal forces on all its faces. The volumetric strain will be x-times the linear strain in any of the three axes when?

A. X=1
B. X=2
C. X=3
D. X=4

Question 4

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?

A. 0.001
B. 0.00105
C. 0.0105
D. 0.005

Question 5

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?

A. 0.002
B. 0.02
C. 0.2
D. 2

Question 6

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

A. 0.2mm
B. 0.3mm
C. 0.5mm
D. 0.1mm

Question 7

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?

A. 0.01
B. 0.001
C. 0.05
D. 0.005

Question 8

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?

A. 0.025
B. 0.0012
C. 0.0046
D. 0.0014

Question 9

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

A. Fatigue
B. Creep
C. Creep relaxation
D. Fracture

Question 10

The lateral strain is ___________

A. The ratio of axial deformation to the original length
B. The ratio of deformation in area to the original area
C. The strain at right angles to the direction of applied load
D. The ratio of length of body to the tensile force applied on it

Question 11

The unit of force in S.I. units is ?

A. Kilogram
B. Newton
C. Watt
D. Dyne

Question 12

What is tensile strain?

A. The ratio of change in length to the original length
B. The ratio of original length to the change in length
C. The ratio of tensile force to the change in length
D. The ratio of change in length to the tensile force applied