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-5 section-3

The different types of annealing processes are

A) Recrystallization annealing B) Spheroidise annealing C) Both A and B D) None of these

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Answer & Solution

Answer: Option C

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The heat treatment process in which a steel is heated to a temperature below the A1 (Temperature is below process annealing temperature) and is held at this temperature for sufficient time and then cooled is called

A) Full annealing B) Process annealing C) Stress relief annealing D) None of these

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Answer: Option C

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Which ceramic material does Si₃Al₃O₃N₅ denote?

A) Silicon carbide B) Silicon nitride C) Sialon D) Silicon alumino nitrate

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Answer: Option C

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A spherical coordinate (r = radius, T = temperature and t = time), the heat conduction equation in steady state is

A) $$\frac{\partial }{{\partial r}}\left( {{r^2}.\frac{{\partial T}}{{\partial r}} = 0} \right)$$ B) $$\frac{\partial }{{\partial T}}\left( {{r^2}.\frac{{\partial T}}{{\partial r}} = 0} \right)$$ C) $$\frac{\partial }{{\partial r}}\left( {{T^2}.\frac{{\partial T}}{{\partial r}} = 0} \right)$$ D) $$\frac{\partial }{{\partial t}}\left( {{r^2}.\frac{{\partial T}}{{\partial r}} = 0} \right)$$

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Answer & Solution

Answer: Option A

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This joint consists of two overlapping parts is called

A) Butt joint B) Lap joint C) Tee joint D) Corner joint

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Answer & Solution

Answer: Option B

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Fick's first law relates

A) flux of atoms and the concentration gradient B) amount of gas dissolved in the molten metal and the partial pressure C) applied normal stress and the orientation of slip system D) heat flux and the temperature gradient

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Answer: Option A

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No wettability leads to the . . . . . . . . defect.

A) delamination B) oxidation C) fatigue D) fragmentation

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Answer: Option A

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Martensitic stainless steel contain alloys of

A) 17 - 27% Cr B) 11.5 - 18% Cr C) 48% Cr D) 14 - 27% chromium

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Answer & Solution

Answer: Option B

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Which of the following carbides are used for cutting tools?

A) Silicon carbide B) Tungsten carbide C) Vanadium carbide D) Chromium carbide

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Answer & Solution

Answer: Option B

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If the friction is increased by two, then the reduction decreases by

A) 3 times B) 2 times C) 6 times D) 4 times

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Answer: Option D

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