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Test: Structural of Metals & Alloys - 1 - Mechanical Engineering MCQ


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10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Structural of Metals & Alloys - 1

Test: Structural of Metals & Alloys - 1 for Mechanical Engineering 2024 is part of Topicwise Question Bank for Mechanical Engineering preparation. The Test: Structural of Metals & Alloys - 1 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Structural of Metals & Alloys - 1 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 - 1 below.
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Test: Structural of Metals & Alloys - 1 - Question 1

An example of amorphous material is  

Detailed Solution for Test: Structural of Metals & Alloys - 1 - Question 1

Amorphous material is one in which there is no definite atomic structure and atom exist in a random pattern just as in a liquid.

Test: Structural of Metals & Alloys - 1 - Question 2

The crystal structure of brass is

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Test: Structural of Metals & Alloys - 1 - Question 3

Which is false statement about properties of aluminium?

Test: Structural of Metals & Alloys - 1 - Question 4

Crystal structure of metals is studied by

Test: Structural of Metals & Alloys - 1 - Question 5

In structure, all metals are

Test: Structural of Metals & Alloys - 1 - Question 6

Dislocation in a material is a _____ defect.

Detailed Solution for Test: Structural of Metals & Alloys - 1 - Question 6

Line imperfections are known as dislocations.

Test: Structural of Metals & Alloys - 1 - Question 7

The co-ordination number of BCC crystal structure is

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Test: Structural of Metals & Alloys - 1 - Question 8

What is the volume of an FCC cell in terms of the atomic radius R?

Detailed Solution for Test: Structural of Metals & Alloys - 1 - Question 8


From the right angle on the face,
a2 + a2 = (4 R)2
∴ 2 a2 = 16 R2
∴ 
Volume of FCC unit,

 

Test: Structural of Metals & Alloys - 1 - Question 9

The ratio of long and short unit cell dimensions of ideal HCP crystal structure should be

Detailed Solution for Test: Structural of Metals & Alloys - 1 - Question 9

For the ideal HCP packing, the ratio of c/a is  i.e. 1.633. The actual HCP metals deviate from ideal c/a ratio.

Test: Structural of Metals & Alloys - 1 - Question 10

Which of the following is structure sensitive property?

Detailed Solution for Test: Structural of Metals & Alloys - 1 - Question 10

Structure sensitive properties: Electrical conductivity, semiconductor properties, yield stress, fracture strength, creep strength.

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