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

In a soft iron, domains are

Question # 2

The doped semi-conductor materials are known as

Question # 3

The force applied on unit area to produce any change in the shape, volume or length of a body is known as

Question # 4

In the doping process, the ratio of the doping atoms to the semi conductor atom is

Question # 5

Which of the following theory completely explain the three types of materials

Question # 6

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

Question # 7

Which of the following can become a good permanent magnet

Question # 8

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

Question # 9

The materials in which there are plenty of free electrons for electrical conduction are known as

Question # 10

The critical temperature of mercury is

Question # 11

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

Question # 12

Lead, copper and wrought iron are examples of

Question # 13

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

Question # 14

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

Question # 15

Polymeric solids have

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The transition from solid state to liquid state is:
A. Abrupt
B. Slow
C. Continous
D. Discontinous
2 The pattern of crystalline solid is:
A. One dimesional
B. Two dimensional
C. Three dimensional
D. None of these
3 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
4 The critical temperature of aluminium is
A. 1.18 K
B. 4.2 K
C. 3.72 K
D. 7.2 K
5 A structure of polymeric solid is:
A. An ordered structure
B. A disordered structure
C. Intermediate between order and disorder
D. Any of these
6 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
7 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them
8 In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as
A. plastic limit
B. plastic deformation
C. proportional limit
D. elastic behaviour
9 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
10 In a semi-conductor material, the total current is
A. only the +ve current
B. only the electronic current
C. sum of +ve and electronic current
D. all 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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