Explore topic-wise MCQs in Mechanical Metallurgy Questions and Answers.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the relationship between engineering stress and true stress?

A. Given that; s = engineering stress, σ = true stress, e = engineering strain, ε = true strain.
B. σ = s(e+1)
C. σ = ln(s)
D. σ = ln[s(e+1)]
E. σ = se+1
Answer» B. σ = s(e+1)
Discussion
2.

For perfectly plastic material, Poisson’s ratio is equal to ________

A. 1
B. 0.5
C. 0.33
D. 0
Answer» C. 0.33
Discussion
3.

The relationship between the true strain and engineering strain is given as _____

A. Where e=conventional strain, ε= Engineering strain
B. ε=e
C. ε=ln(e)
D. ε=ln(e+1)
E. ε=ln(1/(1+e))
Answer» D. ε=ln(e+1)
Discussion
4.

The initial length of sample is Lo and instantaneous length of the sample is L. The true strain of the material will be equal to _________

A. L/Lo
B. Lo/L
C. ln{(L-Lo)/L}
D. ln{L/Lo}
Answer» E.
Discussion
5.

The engineering stress-strain curve does not give an accurate indication of the deformation characteristic of the material because it’s calculation is based on the original dimension of the specimen. These dimensions continuously change during the test.

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