Explore topic-wise MCQs in Mechanical Metallurgy.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy knowledge and support exam preparation. Choose a topic below to get started.

1.

Is it possible to determine the principal strains by Mohr’s circle?

A. True
B. False
Answer» B. False
Discussion
2.

The point of intersection of the Mohr’s circle on the x-axis represents principal normal stresses because the shear stress at these points is zero.

A. True
B. False
Answer» B. False
Discussion
3.

Determine the principal normal stress and shear stress for the following case:σx=240 MPaσy=-30 MPaτ= 50 Mpa.

A. σ1=240 MPa, σ2=-30 MPa, τmax=50 MPa
B. σ1=210 MPa, σ2=-40 MPa, τmax=40 MPa
C. σ1=248.96 MPa, σ2=-38.96 MPa, τmax=140.8 MPa
D. σ1=248.96 MPa, σ2=-38.96 MPa, τmax=50 MPa
Answer» D. σ1=248.96 MPa, σ2=-38.96 MPa, τmax=50 MPa
Discussion
4.

The X and Y- axis of Mohr’s circle represent ________

A. normal stress and shear stress
B. shear stress and normal stress
C. principal normal stress and principal shear stress
D. principal shear stress and principal normal stress
Answer» B. shear stress and normal stress
Discussion
5.

An angle θ in the physical element is represented by ________ on Mohr’s circle.

A. 2θ
B. 3θ
C. 4θ
D. θ
Answer» B. 3θ
Discussion
6.

The radius of Mohr’s circle is equal to________

A. σx
B. τmax
C. σy
D. (σx+σy)/2
Answer» C. σy
Discussion
7.

Mohr’s Circle represents__________

A. the endurance limit to fatigue failure
B. the state of stress at a point on an oblique plane
C. the area of multiple circles
D. the lattice planes of the crystal
Answer» C. the area of multiple circles
Discussion