Miscellaneous in Metallurgy MCQ Questions and Answers

Miscellaneous in Metallurgy MCQ Questions and Answers | Metallurgical Engineering

Enhance your knowledge of Miscellaneous in Metallurgy with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Miscellaneous 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-1 section-2

To produce the jog from the intersection of two dislocations, the necessary condition is

A) burger vector of the dislocation should be parallel to each other B) burger vector of the dislocation should be perpendicular to each other C) burger vector of the dislocation should be directionally opposite to each other D) burger vector of the dislocation should be at 45 degrees to each other

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Answer & Solution

Answer: Option B

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A thermally thin body is the one for which

A) Biot number is less than 0.1 B) Galileo number is less than 0.1 C) Fourier number is less than 0.1 D) Fourier number is greater than 0.1

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Answer & Solution

Answer: Option A

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Explanation of free energy can be done

A) without temperature B) with respect to temperature C) with respect to pressure D) None of these

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Answer & Solution

Answer: Option B

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An aluminium alloy rod of diameter 15 mm and length 120 mm is subjected to a tensile load of 35,000 N along its axis. The Young's modulus and Poisson's ratio for aluminium are 70 GPa and 0.33 respectively.

A) 0.11 B) 0.014 C) 0.018 D) 0.021

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Answer & Solution

Answer: Option B

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A box contains 5 white balls and 3 red balls. Two balls are withdrawn from the box randomly, one after another (without replacement). The probability that the two balls withdrawn are of different colour is

A) $$\frac{{15}}{{64}}$$ B) $$\frac{{25}}{{64}}$$ C) $$\frac{{25}}{{56}}$$ D) $$\frac{{30}}{{56}}$$

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Answer & Solution

Answer: Option D

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Brazing is done at

A) 100 - 450°C B) 850 - 1050°C C) 450 - 800°C D) 1000 - 1200°C

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Answer & Solution

Answer: Option C

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The density and corresponding crystallinity of two poly-propylene material are given below.

Density.kg.m^-3	Crystallinity,%
904	62.8
895	54.4

The density of totally amorphous polypropylene (in kg.m^-3) is:

A) 723 B) 841 C) 905 D) 956

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Answer & Solution

Answer: Option B

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Greater the amount of deformation

A) Lower is the recrystallization temperature B) higher is the recrystallization temperature C) both A and B D) none of these

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Answer: Option A

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An ability of atoms molecules and ions to diffuse inside the material under the influence of concentration gradient.

A) Diffusivity B) Planck's law C) Kirchhoff's law D) Charl's law

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Answer: Option A

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Most of the thermosetting polymers are

A) amorphous B) semi-crystalline C) crystalline D) transcrystalline

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Answer & Solution

Answer: Option C

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