ECAT Pre Computer Science Chapter 17 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 17 Physics of Solids

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ECAT Physics Chapter 17 Physics of Solids

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Question # 1

The substance in which atoms are so oriented that the field produced by spin and orbital motion of the electrons might add up to zero,are called

Question # 2

Every crystalline solid has

Question # 3

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

Question # 4

The electrons in the outermost shell of an atom are called

Question # 5

Glass and high carbon steel are the examples of

Question # 6

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

Question # 7

The pattern of crystalline solid is:

Question # 8

The crystalline structure of NaCI is

Question # 9

The transition from solid to liquid is actually from:

Question # 10

Glass is an example of

Question # 11

Polymers are the chemical combination of carbon with:

Question # 12

The ratio of linear stress/linear strain is called as

Question # 13

The units of modulus of elasticity are

Question # 14

The greatest stress that a material can endure without losing the proportionality between stress and strain is called

Question # 15

Each atom in metal crystal:

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The vast majority of solids are in the form of
A. amorphous structure
B. polymeric structure
C. crystalline structure
D. all of them
2 The SI unit of stress is
A. N/m2
B. Nmc
C. dynes/m
D. N
3 The transition from solid state to liquid state is:
A. Abrupt
B. Slow
C. Continous
D. Discontinous
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 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them
6 Glass is an example of
A. crystalline solid
B. amorphous solid
C. polymeric solid
D. none of them
7 Within each domain, the magnetic field of all the spinning electrons are
A. parallel
B. antiparallel
C. perpendicular
D. all of them
8 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
9 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
10 Recent studies of ferromagnetism have shown that there exists in ferromagnetic substances small regions called
A. tiny regions
B. domains
C. vectors
D. none of them

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