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-1

Self supporting arches for furnace roofs can be fabricated using silica bricks but not using magnesia bricks. Why?

A) Silica has a significantly lower thermal expansion coefficient than magnesia at high temperatures B) Silica has a significantly higher thermal conductivity than magnesia at high temperatures C) Silica has a significantly lower melting point than magnesia D) Silica is significantly more acidic than magnesia

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Answer & Solution

Answer: Option A

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Silicon carbides resist oxidation up to

A) 100°C B) 500°C C) 1000°C D) 1500°C

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Answer & Solution

Answer: Option D

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Dissociation of dislocation occurs

A) Increase the energy of dislocation B) Energy does not change C) Decrease the energy of dislocation D) None of these

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Answer & Solution

Answer: Option C

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Austenising of samples for TTT diagram is done

A) At room temperature B) Below melting point C) Above eutectoid temperature D) Above boiling temperature

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Answer & Solution

Answer: Option C

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What are the operations of forging?

A) Drawing, upsetting & fullering B) Edging, bending & punching C) Flatting, Swagging & Piercing D) All of these

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Answer & Solution

Answer: Option D

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The continuity equation is based on

A) Mass balance B) Momentum balance C) Both mass and momentum balance D) None of the above

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Answer & Solution

Answer: Option A

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The burger vector for Face-centred cubic material is . . . . . . . .; Where ao is the lattice parameter.

A) ao/2[110] B) ao/2[111] C) ao[110] D) ao[100]

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Answer & Solution

Answer: Option A

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Multispot welding process is

A) Seam welding B) Projection welding C) Thermit welding D) Percussion welding

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Answer & Solution

Answer: Option B

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Mark the matter with least value of thermal conductivity

A) Air B) Water C) Ash D) Window glass

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Answer & Solution

Answer: Option A

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A fluid which is incompressible & having no viscosity is known as

A) Real Fluid B) ideal fluid C) non ideal fluid D) none of these

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Answer & Solution

Answer: Option B

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