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Material Science in Metallurgy MCQ Questions and Answers | Metallurgical Engineering

Enhance your knowledge of Material Science in Metallurgy with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Material Science in Metallurgy are specifically designed for students of Metallurgical Engineering who are preparing for the GATE Exam. Strengthen your preparation and excel in your studies with this valuable resource. Page-4 section-1

31
Which one of the following refers to the ability of a material to absorb energy when deformed elastically?
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Answer & Solution
Answer: Option C
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32
The preferred alloying for low temperature application of steel is
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Answer & Solution
Answer: Option D
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33
A soft magnetic material should have
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Answer & Solution
Answer: Option C
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34
Match the cast irons with applications.
P. Grey cast iron 1. S.G iron pipes
Q. White cast iron 2. Chemical processing equipments requiring high corrosion, erosion and heat resistance
R. Nodular cast iron 3. Bases or beds of industrial equipments
S. Ni resist cast iron 4. Manufacture of malleable cast iron
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Answer & Solution
Answer: Option A
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35
As compared to the engineering stress-engineering strain curve, the true stress-true strain curve for a given material
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Answer: Option A
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36
Match the materials listed in Group I with the most appropriate applications listed in Group II.
Group I Group II
P. Iron-silicon alloy 1. Heating element
Q. GaAs 2. Ultrasonic generator
R. Nichrome 3. Transformer core
S. Quartz crystals 4. Light emitting diode
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Answer & Solution
Answer: Option A
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37
Wood is a naturally occuring . . . . . . . . material.
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Answer & Solution
Answer: Option B
Solution:
Definition: A composite material is made up of two or more distinct constituents that remain separate and distinct on a macroscopic level, working together to provide combined properties.

Composition of wood: Wood is a naturally occurring composite consisting mainly of cellulose fibers (which provide strength and flexibility) embedded in a lignin matrix (which acts as a binder and provides rigidity).

Reason: The cellulose fibers act as the reinforcement phase, while lignin serves as the matrix phase, giving wood its unique combination of strength, toughness, and workability.

Conclusion: Since wood is made of distinct natural components functioning together like a composite material, it is classified as a naturally occurring composite.
38
Match the following materials to their specific applications.
P. White cast irons 1. Damping capacity
Q. Age hardened Al alloys 2. Wear resistance
R. Grey cast irons 3. High temperature applications
S. Superalloys 4. Aerospace structural applications
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Answer & Solution
Answer: Option A
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39
Match the material/application in the following cases.
P. Grey cast iron 1. Lathe bed
Q. Austenitic stainless steel 2. Oil piplines
R. High strength low alloy steel 3. Gas turbine engines components
S. Nickel base superalloy 4. Cryogenic service
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Answer & Solution
Answer: Option A
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40
Transformer cores are normally made from
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Answer & Solution
Answer: Option C
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