Material Science in Metallurgy MCQ Questions and Answers

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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-2 section-1

Match the alloy names listed in Group I with the main elements present in them listed in Group II.

Group I	Group II
P. Babbit	1. Fe-Ni
Q. Muntz metal	2. Ni-Cr-Fe
R. Invar	3. Cu-Zn
S. Inconel Group II	4. Sn-Sb-Cu

A) P-3, Q-1, R-4, S-2 B) P-3, Q-4, R-1, S-2 C) P-4, Q-1, R-2, S-3 D) P-4, Q-3, R-1, S-2

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Silicon crystal can be converted to p-type semi-conductor by doping with

A) phosphorous B) nitrogen C) carbon D) boron

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The fatigue resistance of material is improved by the following techique:

A) Anodising B) Carburising C) Ion nitriding D) Shot peening

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Young's modulus of a material gives an idea about

A) toughness B) stiffness C) hardness D) strength E) electrical conductivity

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In polymers such as epoxy, creep resistance can be enhanced by

A) increasing the bulkness of side groups B) .increasing the cross-link density C) addition of plasticizers D) annealing

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Answer & Solution

Answer: Option B

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A small amount of thoria is doped into tungsten filament wires used in light bulbs. This is because thoria particles

A) decreases solute diffusivity B) enhances the mobility of grain boundary C) increases solute segregation to the grain boundary D) are effective in limiting grain growth

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Answer & Solution

Answer: Option D

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Super alloys are

A) Al-based alloys B) Cu-based alloys C) Ni-based alloys D) Mg-based alloys

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Match the materials in Group 1 with the Young's modulus (GPa) in Group 2.

Group 1	Group 2
P. Copper	1. 4
Q. Ployvinyl cholride	2. 37
R. Steel	3. 70
S. Silicate glass	4. 110
	5. 207
	6. 700

A) P-4, Q-1, R-5, S-3 B) P-S, Q-1, R-4, S-2 C) P-4, Q-2, R-6, S-3 D) P-2, Q-3, R-5, S-6

Discuss

Answer & Solution

Answer: Option A

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Increasing the carbon content of steel

A) reduces the upper shelf energy B) increases the ductility transition temperature C) decreases brittleness D) decreases hardness

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Answer & Solution

Answer: Option B

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Lithium is a useful alloying addition to aluminium, because it

A) is cheap B) imparts solid solution strengthening C) lowers density and contributes to agehardening D) improves the corrosion resistance of aluminium

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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Material Science in Metallurgy MCQ Questions and Answers | Metallurgical Engineering