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

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

Question # 2

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

Question # 3

The crystalline structure of NaCI is

Question # 4

The SI unit of strain is

Question # 5

The electrons in the outermost shell of an atom are called

Question # 6

In metallic crystals which of the following thing remains constant

Question # 7

when the deformation produced in the material become permanent, this type of behaviour is called

Question # 8

Any superconductor with critical temperature above 77 K, is referred as

Question # 9

The results of mechanical tests are usually expressed in terms of

Question # 10

Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at

Question # 11

The charged nucleus of an atom itself spins its magnetic field

Question # 12

The band above the valence band is called

Question # 13

Amorphous solids are also more like

Question # 14

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

Question # 15

The critical temperature of tin is

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The magnetism produced by electrons within an atom can arise from
A. electrons orbiting the nucleus
B. electrons posses a spin
C. both motions
D. none of these motions
2 An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:
A. 800oC
B. 500oC
C. 300oC
D. 100oC
3 The greatest stress that a material can endure without losing the proportionality between stress and strain is called
A. plastic line
B. breaking point
C. proportional limit
D. none of them
4 The critical temperature of mercury is
A. 1.18 K
B. 4.2 K
C. 3.72 K
D. 7.2 K
5 The first super conductor was discovered in
A. 1811
B. 1890
C. 1901
D. 1911
6 Which of the following can become a good permanent magnet
A. iron
B. steel
C. both of them
D. none of them
7 Polymeric solids have
A. low specific gravity
B. high specific gravity
C. either of them
D. none of them
8 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
9 Which of the following can become a good temporarily magnet
A. iron
B. steel
C. both of them
D. none of them
10 The pattern of NaCl particles have a shape which is :
A. Cubic
B. Body centred cubic
C. Simple cubic
D. face centred

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