ECAT Pre Engineering Physics Chapter 17 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 17 Physics of Solid

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 17 Physics of Solid

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Physics ECAT Pre Engineering Chapter 17 Physics of Solid

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Question # 1

The maximum stress that a material can withstand, is known as

Question # 2

The critical temperature of aluminium is

Question # 3

A semi-conductor in its extremely pure form is known as

Question # 4

The materials in which there are plenty of free electrons for electrical conduction are known as

Question # 5

The crystalline structure of NaCI is

Question # 6

Which of the following theory completely explain the three types of materials

Question # 7

Arsenic, antimony and phosphorus are the elements from

Question # 8

Synthetic materials fall into the category of

Question # 9

The SI unit of stress is

Question # 10

If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be

Question # 11

In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of:

Question # 12

Amorphous solids are also called as

Question # 13

A unit cell is smallest basic structure which is:

Question # 14

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

Question # 15

Recent studies of ferromagnetism have shown that there exists in ferromagnetic substances small regions called

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The bands below the valence band are
A. completely filled and play active part in conduction process
B. completely filled and plays no part in conduction process
C. completely filled and play active part in conduction process
D. not completely filled and play no part in conduction process
2 Which of the following theory completely explain the three types of materials
A. Bohr model of electron distribution
B. Rutherford atomic model
C. Pauli's exclusion principle
D. energy band theory
3 The neighbours of every molecule in crystalline solids are arranged in
A. an irregular manner
B. a regular manner
C. any manner
D. none of them
4 The arrangement or molecules or atoms in a crystalline solid can be studied by using:
A. Chemical methods
B. Neutrons
C. X-ray techniques
D. Copper atoms
5 The materials in which there are plenty of free electrons for electrical conduction are known as
A. conductors
B. insulators
C. semi-conductors
D. all of them
6 The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
7 In a semi-conductor material, the total current is
A. only the +ve current
B. only the electronic current
C. sum of +ve and electronic current
D. all of them
8 The materials in which valence electrons are bound very tightly to their atoms and are not free, are known as
A. conductors
B. insulators
C. semi-conductors
D. all of them
9 Above the curie temperature, iron becomes
A. ferromagnetic
B. paramagnetic
C. diamagnetic
D. any one of them
10 The band above the valence band is called
A. high energy band
B. conduction band
C. empty band
D. none of them

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