Explore topic-wise MCQs in Engineering Materials Metallurgy.

This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.

1.

Which tempering process is used to increase the endurance and elastic limit of the material?

A. Low-temperature tempering
B. Medium temperature tempering
C. High-temperature tempering
D. Endurance limit cannot be increased
Answer» C. High-temperature tempering
Discussion
2.

Temper embrittlement occurs at a temperature __________

A. Below 0oC
B. Above 250oC
C. Above 575oC
D. Above 1000oC
Answer» D. Above 1000oC
Discussion
3.

High temperature tempering develops a ________ structure.

A. Non-lamellar
B. Sorbite
C. Tempered-troostite
D. Pearlite
Answer» C. Tempered-troostite
Discussion
4.

Tempering that results in a reduction of toughness is known as __________

A. Caustic embrittlement
B. Temper embrittlement
C. End-temper
D. Quench-temper embrittlement
Answer» C. End-temper
Discussion
5.

Medium temperature tempering develops a ________ structure.

A. Non-lamellar
B. Sorbite
C. Tempered-troostite
D. Bainite
Answer» D. Bainite
Discussion
6.

TEMPERING_THAT_RESULTS_IN_A_REDUCTION_OF_TOUGHNESS_IS_KNOWN_AS___________?$

A. Caustic embrittlement
B. Temper embrittlement
C. End-temper
D. Quench-temper embrittlement
Answer» C. End-temper
Discussion
7.

Temper embrittlement occurs at a temperature __________$

A. Below 0<sup>o</sup>C
B. Above 250<sup>o</sup>C
C. Above 575<sup>o</sup>C
D. Above 1000<sup>o</sup>C
Answer» D. Above 1000<sup>o</sup>C
Discussion
8.

High_temperature_tempering_develops_a__________structure.$

A. Non-lamellar
B. Sorbite
C. Tempered-troostite
D. Pearlite
Answer» C. Tempered-troostite
Discussion
9.

What are the applications of medium temperature tempering?

A. Spring and die steels
B. Structural steels
C. Low alloy steels
D. Surface hardened regions
Answer» B. Structural steels
Discussion
10.

Which_tempering_process_is_used_to_increase_the_endurance_and_elastic_limit_of_the_material?

A. Low-temperature tempering
B. Medium temperature tempering
C. High-temperature tempering
D. Endurance limit cannot be increased
Answer» C. High-temperature tempering
Discussion
11.

Medium temperature tempering develops a ________ structure?

A. Non-lamellar
B. Sorbite
C. Tempered-troostite
D. Bainite
Answer» D. Bainite
Discussion
12.

Low temperature tempering occurs at __________

A. 50-150<sup>o</sup>C
B. 150-250<sup>o</sup>C
C. 350-450<sup>o</sup>C
D. 500-650<sup>o</sup>C
Answer» C. 350-450<sup>o</sup>C
Discussion
13.

How is the ductility of the material affected due to tempering?

A. Increases with increase in temperature
B. Decreases with increase in temperature
C. Increases constantly
D. Does not change
Answer» B. Decreases with increase in temperature
Discussion
14.

How is the tensile strength of the material affected due to tempering?

A. Increases with increase in temperature
B. Decreases with increase in temperature
C. Increases constantly
D. Does not change
Answer» C. Increases constantly
Discussion
15.

What kind of transformation occurs during tempering of martensite steel?

A. BCC to FCC
B. BCT to HCP
C. FCC to BCT
D. BCT to α+Fe3C
Answer» E.
Discussion
16.

Internal stresses in martensite steel are relieved by heating at __________

A. 200<sup>o</sup>C
B. 500<sup>o</sup>C
C. 800<sup>o</sup>C
D. 1000<sup>o</sup>C
Answer» B. 500<sup>o</sup>C
Discussion
17.

Tempering of martensite steel is done _________

A. Below eutectic temperature
B. Below eutectoid transformation temperature
C. At room temperature
D. At 1000<sup>o</sup>C
Answer» C. At room temperature
Discussion
18.

Which of the following is not a result of tempering?

A. Increased ductility
B. Improved toughness
C. Increased electrical conductivity
D. Internal stresses are relieved
Answer» D. Internal stresses are relieved
Discussion