Miscellaneous in Metallurgy MCQ Questions and Answers

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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-3 section-3

Each section contains 100 MCQs on Miscellaneous in Metallurgy .

At what temperature material heated in reheating furnace before hot rolling?

A) 1450°C B) 1250°C C) 850°C D) 1550°C

Discuss

Answer & Solution

Answer: Option B

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

Match entities listed in Column I with their correct dimensions given in Column II.

Column I	Column II
P. Drag coefficient	1. ML^-1 T^-1
Q. Mass transfer coefficient	2. ML^-2 T^-1
R. Viscosity	3. M⁰ L⁰ T⁰
S. Mass flux	M⁰ LT^-1

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

Discuss

Answer & Solution

Answer: Option A

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In hot forging

A) Parts possess increased ductility B) Homogenized grain structure C) Porosity free surface quality D) All of these

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Answer & Solution

Answer: Option D

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

For cold rolling

A) λ = 0.45 B) λ = 0.40 C) λ = 0.50 D) λ = 0.35

Discuss

Answer & Solution

Answer: Option A

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Match the properties in Group I with the units in Group II.

Group I	Group II
P. Thermal conductivity	1. J.m^-2s^-1k^-1
Q. Heat transfer coefficient	2. J.m^-1s^-1k^-1
R. Specific heat	3. m.s^-1
S. Diffusivity	4. J.mol²s^-1

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

Discuss

Answer & Solution

Answer: Option C

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For a polymer reinforced with 40 vol.% glass fiber, the elastic modulus (in GPa) along the transverse direction is
[E_{glass fiber} = 70 GPa; E_polymer = 6.5 GPa]

A) 5.6 B) 8.1 C) 30.1 D) 43.4

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Answer & Solution

Answer: Option A

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Graphite fibres are used to make undirectional Al-matrix composites. Young's modulus of graphite and aluminium are 400 GPa respectively. If a composite contains 60 volume % of fiber and is loaded along the fiber direction, the Youngs Modulus of the composite is . . . . . . . . GPa.

A) 60 B) 164 C) 264 D) 364

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Answer & Solution

Answer: Option C

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For most extrusion operations, the optimum semi die angle is between

A) 30 - 45° B) 45 - 60° C) 60 - 75° D) 75 - 90°

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Answer & Solution

Answer: Option B

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Work hardening of materials is due to

A) formation of new dislocation B) multiplication of dislocations C) restriction of the movement of old dislocation by newly form dislocation D) all are correct

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Answer & Solution

Answer: Option D

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The effect of viscosity on the fluidity of liquid is

A) Higher the viscosity, lower is the fluidity and vice versa B) lower the viscosity, lower is the fluidity and vice versa C) Fluidity is not affected by viscocity D) None of these

Discuss

Answer & Solution

Answer: Option A

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Miscellaneous in Metallurgy MCQ Questions and Answers | Metallurgical Engineering