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

This section includes 4 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.

The variation of interatomic energy with atomic distance is given by the following equation V(r)=4ε[(σ/r12)−(σ/r6)]Where V(r) is the potential energy, and r is interatomic distance. ε and σ are constant.

A. Find the value of energy at the point where the interatomic force is zero?
B. – ε
C. ε
D. 0
E. σ
Answer» B. – ε
Discussion
2.

In the following Potential energy vs. interatomic distance chart, interatomic force between the atoms will be zero at point __________

A. 1
B. 2
C. 3
D. 4
Answer» C. 3
Discussion
3.

Elastic constant is greatly influenced by the interatomic force between atoms. The following diagram represents the relationship between the interatomic distance and atomic potential energy. Equilibrium interatomic distance is denoted by point ____________

A. 1
B. 2
C. 3
D. 4
Answer» C. 3
Discussion
4.

Elastic strain energy per unit volume or strain energy density is NOT equal to ________

A. Where σx=stress in x direction, εx=strain in x direction, E=young’s modulus, P=load, Δ=elongation.
B. \(\frac{1}{2}(\sigma x\epsilon x)\)
C. \(\frac{1}{E}(\sigma x^2)\)
D. \(\frac{1}{2}(E\epsilon x^2)\)
E. \(\frac{1}{2}(p \Delta)\)
Answer» E. \(\frac{1}{2}(p \Delta)\)
Discussion