Explore topic-wise MCQs in Materials Science.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.

1.

Hardness number decreases with an increase in carbon content in steel.

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

Hardness number decreases with an increase in carbon content in steel?

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

Which of the following is formed less when cooling rate is decreased?

A. Pearlite
B. Fine pearlite
C. Bainite
D. Martensite
Answer» E.
Discussion
4.

In a hardnability curve which of the following is true:

A. Hardness increases as distance from quenched end increases
B. Hardness decreases as distance from quenched end increases
C. Hardness increases as martensite decreases
D. Hardenability curve is a straight line
Answer» C. Hardness increases as martensite decreases
Discussion
5.

Jominy end-quench test is used to determine the hardness of a material.

A. True
B. False
Answer» C.
Discussion
6.

Which of the following has the highest hardness number?

A. Martensite
B. Tempered martensite
C. Pearlite
D. Fine pearlite
Answer» B. Tempered martensite
Discussion
7.

Which of the following is defined as the ability of the structure to transform into martensite?

A. Hardenability
B. Strength
C. Toughness
D. Hardness
Answer» B. Strength
Discussion
8.

Which of the following material in the final structure of steel increases the strength of steel?

A. Martensite
B. Pearlite
C. Ledeburite
D. Austenite
Answer» B. Pearlite
Discussion
9.

Which of the following processes will one use on hardened steel to reduce brittleness?

A. Annealing
B. Normalizing
C. Spheroidizing
D. Tempering
Answer» E.
Discussion
10.

Which of the following alloying element can be used to deoxidize steels?

A. Phosphorous
B. Carbon
C. Cerium
D. Selenium
Answer» D. Selenium
Discussion