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 critical temperature of aluminium is

Question # 2

Zirconia is classified as:

Question # 3

When a silicon crystal is doped with a pentavalent element, then the atom of the pentavalent element is known as

Question # 4

The domains are of macroscopic size of the order of

Question # 5

The materials in which valence electrons are bound very tightly to their atoms and are not free, are known as

Question # 6

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

Question # 7

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

Question # 8

The pattern of NaCl particles have a shape which is :

Question # 9

The units of modulus of elasticity are

Question # 10

The smallest three dimensional basic structure in a crystalline solid is called

Question # 11

In the phenomenon of hysteresis

Question # 12

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

Question # 13

The molecules or ions in a crystalline solids are

Question # 14

The ratio of shearing stress/shearing strain is called as

Question # 15

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

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Tick the one which is not a crystalline solid:
A. Zirconia
B. Glass
C. Copper
D. Ceramic solid
2 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
3 Substances which break just after the elastic limit is reached, are known as
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
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 Each atom in a metal crystal vibrates about a fixed point with an amplitude that:
A. Decrease the rise in temprature
B. Is not affected by rise in temprature
C. Increase with rise in temprature
D. Both (B) and (C)
6 The number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structure are
A. 5
B. 7
C. 9
D. 14
7 Examples of polymeric substances are:
A. Plastic
B. Synthetic rubbers
C. Zirconia
D. All of these
8 In a soft iron, domains are
A. easily oriented along external field and do not return to original random positions
B. easily oriented along external field and readily returns to originally random position
C. do no oriented along external field and also do not returns to originally random position
D. none of them
9 The vast majority of solids are in the form of
A. amorphous structure
B. polymeric structure
C. crystalline structure
D. all of them
10 when the deformation produced in the material become permanent, this type of behaviour is called
A. proportionality
B. elasticity
C. plasticity
D. none of them

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  • farooq,khan

    farooq,khan

    17 Oct 2018

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

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