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Physics of Metals in Metallurgy MCQ Questions and Answers | Metallurgical Engineering

Enhance your knowledge of Physics of Metals in Metallurgy with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Physics of Metals 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-1

21
The grain size of pure copper after annealing for 103S is 10 μm. If the time exponent is 0.5, the total time of annealing required to obtain a grain size of 40 μm is . . . . . . . . S.
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Answer & Solution
Answer: Option C
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22
For dislocation with Burger vector b, the energy is
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Answer: Option D
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23
A unit cell of an element has maximum linear density along the [110] direction. The packing density of its (100) plane is
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Answer: Option C
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24
Saturation magnetization of an FCC metal with lattic parameter 0.2 nm is 600 kA/m. The net magnetic moment per atom is given by (in Bohr magnetron)
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Answer: Option D
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25
Which one of the following signals from a specimen is used in a scanning electron microscope to get quantitative elemental analysis?
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Answer: Option C
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26
An electron beam is accelarated by a potential and the velocity of electrons in the beam is 1.8754 × 108 m. s-1. The accelarting potential in kilovolts is
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Answer: Option B
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27
At room temperature F.C.C. crystal structure is observed in
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Answer: Option A
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28
The planer density for (111) plane in a fcc crystal is
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Answer: Option B
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29
If the carrier charge concentration (n) and mobility (μa) in a metallic conductor are respectively
1.602 × 10-19C, 8.50 × 10-3 m2. V-1 S-1, the resistivity of the material in [Ω m] is
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Answer: Option C
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30
The miller indices of the direction common to the planes (111) and (110) in a cubic system is
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Answer: Option B
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