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 number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structure are

Question # 2

Tick the one which is not a crystalline solid:

Question # 3

The transition from solid state to liquid state is:

Question # 4

The ratio of linear stress/linear strain is called as

Question # 5

The ratio of shearing stress/shearing strain is called as

Question # 6

The crystalline structure of NaCI is

Question # 7

Under the elastic region, the deformation produced in the material, the deformation produced in the material will be

Question # 8

The bands below the valence band are

Question # 9

Ferromagnetic substances lose their magnetism when heated above a certain temperature, known as

Question # 10

Which of the following can become a good temporarily magnet

Question # 11

In case of the three dimensional deformation, when volume is involved, the ratio of applied stress to volumetric strain is called

Question # 12

The substance in which atoms are so oriented that the field produced by spin and orbital motion of the electrons might add up to zero,are called

Question # 13

The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:

Question # 14

The substances which break just after the elastic limit is reached, are known as

Question # 15

The electrons in the outermost shell of an atom are 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 can become a good temporarily magnet
A. iron
B. steel
C. both of them
D. none of them
3 The band above the valence band is called
A. high energy band
B. conduction band
C. empty band
D. none of them
4 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
5 The valence band of an atom in a solid
A. is always empty
B. may or may not be empty
C. can never be empty
D. none of them
6 If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be
A. permanent
B. temporary
C. either of them
D. none of them
7 In a semi-conductor material, current flows due to
A. positive charge
B. negative charge
C. both of them
D. none of them
8 Whenever a covalent bond is broken in an intrinsic semi-conductor
A. hole is created
B. an electron is created
C. an electron-hole pair is generated
D. all of them
9 The measure of the deformation in a solid when stress is applied to its is called
A. elastic constant
B. young's modulus
C. strain
D. elasticity
10 A unit cell is smallest basic structure which is:
A. One dimensional
B. Two dimensional
C. Three dimensional
D. Four dimensional

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