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 modulus of elasticity can be written as

Question # 2

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

Question # 3

In a semi-conductor material, current flows due to

Question # 4

Glass and high carbon steel are the examples of

Question # 5

Semi-conductor elements have atoms with

Question # 6

The charged nucleus of an atom itself spins its magnetic field

Question # 7

Glass is an example of

Question # 8

The valence band of an atom in a solid

Question # 9

On heating, glass gradually softens into a paste like before it becomes a very viscous liquid at almost

Question # 10

Within each domain, the magnetic field of all the spinning electrons are

Question # 11

The cohesive forces between atoms, molecules or ions in crystalline solids maintain the strict

Question # 12

The first super conductor was discovered in

Question # 13

The solids which has structure in-between order and disorder are called

Question # 14

The electrons occupying the conduction band are known as

Question # 15

The solids are classified as:

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Each atom in metal crystal:
A. Remains fixed
B. Vibrates about a fixed point
C. Moves randomly
D. Rotates about center of a crystal
2 The smallest three dimensional basic structure is called as:
A. An atom
B. Unit cell
C. Crystal lattice
D. Polymer
3 When a stress changes the shape, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them
4 The domains are of macroscopic size of the order of
A. centimeters
B. meters
C. millimeters
D. nanomneters
5 The force applied on unit area to produce any change in the shape, volume or length of a body is known as
A. strain
B. elasticity
C. stretching
D. stress
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 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
8 The maximum stress that a material can withstand, is known as
A. plastic point
B. elastic limit
C. yield point
D. ultimate tensile strength
9 Glass and high carbon steel are the examples of
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
10 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

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  • farooq,khan

    farooq,khan

    17 Oct 2018

    when,stress,apply,change,in,length,called,tensil,stress

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