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-2 section-1

At a particular extrusion ratio, the strength . . . . . . . . along the length of the extruded product from front to back end.

A) Decreases B) Increases C) remains constant D) none of these

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Answer & Solution

Answer: Option B

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Probability of nucleation throughout the system is . . . . . . . . In heterogeneous nucleation.

A) Similar B) Irregular C) Same D) None of these

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Answer: Option B

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A glass fibre reinforced epoxy composite is made with 60 wt.% unidirectional continuous glass fibres. The elastic moduli of the glass fibre and the epoxy matrix are 72.5 and 2.4 GPa, respectively. What is the elastic modulus of this composite along the fibre direction, in GPa? The densities of glass fibre and epoxy are 2.58 g/cm³ and 1.14 g/cm³, respectively

A) 10.5 B) 20.5 C) 30.5 D) 4.5

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Answer & Solution

Answer: Option C

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The the equation for thermal conductivity

A) $$K = \frac{{\Delta T}}{{XA}}$$ B) $$K = \frac{{QA}}{{X\Delta T}}$$ C) $$K = \frac{{QX}}{{A\Delta T}}1$$ D) None of these

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Answer & Solution

Answer: Option C

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Example/examples of eutectoid system is/are

A) Ag-Cd, Ag-Ga, Pb-Sn B) Ag-Cd, Ag-Ga, Al-Mn, Bi-Cd C) Ag-Cd, Ag-Ga, Al-Mn, Au-Zn, Pb-Sn D) Ag-Cd, Ag-Ga, Al-Mn, Au-Zn, Cu-Zn, Cu-Sn

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Answer & Solution

Answer: Option D

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The resistance to compressive deformation increases when length to thickness

A) decreases B) increases C) remains constant D) uncertain

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Answer: Option B

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Hardness of steel increases with the

A) Increase of carbon % B) Decrease of carbon % C) By slow cooling D) None of these

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Answer & Solution

Answer: Option A

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The motion of edge dislocation inside the materials may be

A) conservative motion B) nonconservative motion C) both A and B D) none of these

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Answer: Option C

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The infinitely long and wide parallel plates A and B are at temperature. Ta and Tb respectively. The energy transferred from relatively hotter plate A to plate B is proportional to

A) T_a - T_b B) T_a² - T_b² C) (T_a - T_b) (T_a² + T_b² - T_a.T_b) D) None of the above

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Answer: Option A

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A steel rod was subjected to a fluctuating stress cycle that varied between a maximum of 400 MPa in tension to a minimum of 300 MPa in compression. What is the stress amplitude, in MPa?

A) 150 B) 250 C) 350 D) 450

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Answer & Solution

Answer: Option C

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