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Test: Structural of Metals & Alloys - 2 - Mechanical Engineering MCQ


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10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Structural of Metals & Alloys - 2

Test: Structural of Metals & Alloys - 2 for Mechanical Engineering 2024 is part of Topicwise Question Bank for Mechanical Engineering preparation. The Test: Structural of Metals & Alloys - 2 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Structural of Metals & Alloys - 2 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Structural of Metals & Alloys - 2 below.
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Test: Structural of Metals & Alloys - 2 - Question 1

Surface imperfections that separate two orientations that are mirror image of one- another is called

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The grain boundary defects are called twin boundary when the surface imperfect orientations on the side are mirror image of those in the opposite side.

Test: Structural of Metals & Alloys - 2 - Question 2

What is the linear density for FCC [100] direction in terms of the atomic radius?

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Test: Structural of Metals & Alloys - 2 - Question 3

Which of the following regions of the electromagnetic spectrum would be used to determine the structure of crystalline solids?

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X-ray crystallography: A technique in which the patterns formed by the diffraction of X-rays on passing through a crystalline substance yield information on the lattice structure of the crystal, and the molecular structure of the substance.

Test: Structural of Metals & Alloys - 2 - Question 4

The defect responsible for the phenomena of slip, by which most metals deform plastically, is known as

Test: Structural of Metals & Alloys - 2 - Question 5

The correct order of co-ordination number in SC, BCC, FCC and HCP unit cells is

Test: Structural of Metals & Alloys - 2 - Question 6

The maximum radius of the interstitial sphere that can fit into the void between the body centred atom of BCC structure is

Test: Structural of Metals & Alloys - 2 - Question 7

Magnesium crystallizes in HCP structure. If the lattice constant is 0.32 nm, the nearest neighbour distance in magnesium is

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Test: Structural of Metals & Alloys - 2 - Question 8

The packing factor of diamond cubic crystal structure is

Test: Structural of Metals & Alloys - 2 - Question 9

If (3 2 6) are the Miller indices of a plane, the intercepts made by the plane on the three crystallographic axes are

Test: Structural of Metals & Alloys - 2 - Question 10

In a simple cubic lattice d100: d110: d111 is
where d is interpianer spacing.

Detailed Solution for Test: Structural of Metals & Alloys - 2 - Question 10

Correct Answer :- D

Explanation : d100 = a/(12 + 02 + 02)1/2

= a

d110 = a/(12 + 12+ 02)1/2

= a/(2)1/2

d111 = a/(12 + 12 + 12)1/2

= a/(3)1/2

d100 : d110 : d111 = a : a/(2)1/2 : a/(3)1/2

= 61/2 : 31/2 : 21/2

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