Explore topic-wise MCQs in Mechanical Metallurgy.

This section includes 6 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.

The hardness value of the metal ______________ with increase in the temperature.

A. increases
B. decreases
C. remains constant
D. no relationship
Answer» C. remains constant
Discussion
2.

For measuring the hardness of the cementite and ferrite in a pearlite colony individually, the Knoop hardness measurement is the best method.

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

For the same long diagonal length of indenter of Vickers hardness and Knoop hardness, the Knoop hardness is how much percentage of the Vickers indenter?

A. 50 %
B. 15 %
C. 75 %
D. 100 %
Answer» C. 75 %
Discussion
4.

The Knoop hardness number(KHN) is defined as the applied load divided by the unrecovered projected area of the indentation.

A. True
B. False
Answer» B. False
Discussion
5.

The shape of Knoop indenter is of ___________

A. rounded end tip
B. square-based pyramid
C. pyramid with major and minor diagonal
D. pyramid with a rounded end
Answer» D. pyramid with a rounded end
Discussion
6.

If the hardness of the case carburized steel needs to be measured, the possible method to measure the hardness of the case will be _________

A. Rockwell
B. Knoop
C. Vickers
D. Brinell
Answer» C. Vickers
Discussion