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

Semi-conductor elements have atoms with

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

The magnetism produced by electrons within an atom can arise from

Question # 6

The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called

Question # 7

The electrons occupying the conduction band are known as

Question # 8

When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as

Question # 9

An atom in which there is a resultant magnetic field, behaves like a tiny magnet and is called as

Question # 10

Tick the one which is not polymer solid:

Question # 11

Amorphous solids:

Question # 12

Zirconia is classified as:

Question # 13

The critical temperature of mercury is

Question # 14

The whole structure obtained by the repetition of unit cells is called:

Question # 15

In metallic crystals which of the following thing remains constant

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 A unit cell is smallest basic structure which is:
A. One dimensional
B. Two dimensional
C. Three dimensional
D. Four dimensional
2 The smallest three dimensional basic structure is called as:
A. An atom
B. Unit cell
C. Crystal lattice
D. Polymer
3 The modulus of elasticity can be written as
A. stress x strain
B. strain/stress
C. 1/2 x stress x strain
D. stress/strain
4 When a stress changes the shape, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them
5 On heating, glass gradually softens into a paste like before it becomes a very viscous liquid at almost
A. 600°C
B. 7600°C
C. 800°C
D. 900°C
6 In case of the three dimensional deformation, when volume is involved, the ratio of applied stress to volumetric strain is called
A. Young's modulus
B. Bulk modulus
C. Shear modulus
D. all of them
7 The ratio of shearing stress/shearing strain is called as
A. Modulus
B. Pascal modulus
C. Hooker's modulus
D. Shear modulus
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 Glass and high carbon steel are the examples of
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
10 The charged nucleus of an atom itself spins its magnetic field
A. equal to the field produced by orbital electrons
B. greater than the field produced by orbital electrons
C. much weaker than the field produced by orbital electrons
D. none of these

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  • farooq,khan

    farooq,khan

    17 Oct 2018

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

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