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-7 section-1

In fluid flow, heat and mass transfer, one encounters (i) kinematic viscosity μ (ii) molecular diffusivity (θ) and (iii) thermal diffusivity (α) the units of these quantities are:

A) μ, α and θ all have units of m/s B) μ α and θ all have units of m²/s C) μ and θ have units of m²/s while μ has units of m/s D) μ and θ have units of m/s while μ has units of m²/s

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Answer & Solution

Answer: Option C

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Dislocations are

A) non-equilibrium defects B) equilibrium defects C) can't say D) none of these

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Answer: Option A

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Nusselt number/Biot number varies

A) inversely with thermal conductivity B) directly with heat transfer co-efficient C) directly with thermal conductivity D) inversely with dimension of the solid

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Answer: Option A

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Maximum upper critical temperature in iron carbon diagram is

A) 1147°C B) 910°C C) 1497°C D) 210°C

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Answer: Option B

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In general, the ratio of mixing time and circulation in bioreactor is

A) 8 B) 6 C) 4 D) None of these

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Answer: Option C

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What are the applications of cold rolled steel

A) Metal Furniture & containers B) Water Heater & frying pans C) Structural parts D) All of these

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Answer: Option D

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Consider the following collection of polymer chains.

No. of molecules	10	5	4	2	1
Molecular weight gm.mol^-1	2800	3000	1200	3600	1000

Mer unit is ethylene. Atomic weights: carbon (12) and, hydrogen (1). Calculate number average degree of polymerisation.

A) 32.32 B) 90.91 C) 106.61 D) 116.13

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Answer: Option B

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. . . . . . . . theory is applied for plastic deformation

A) Von Mises B) Griffth C) Bhor D) Orwan

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Answer: Option A

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Glycogen, a naturally occurring polymer stored in animals is a

A) monosaccharide B) disaccharide C) trisaccharide D) polysaccharide

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Answer: Option D

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Gray cast iron is usually welded by

A) Gas welding B) Resistance welding C) Arc welding D) All of these

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Answer & Solution

Answer: Option A

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