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 maximum stress that a material can withstand, is known as

Question # 2

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

Question # 3

The vast majority of solids are in the form of

Question # 4

In a soft iron, domains are

Question # 5

Under the elastic region, the deformation produced in the material, the deformation produced in the material will be

Question # 6

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

Question # 7

The arrangement or molecules or atoms in a crystalline solid can be studied by using:

Question # 8

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

Question # 9

Zirconia is classified as:

Question # 10

Examples of polymeric substances are:

Question # 11

Each atom in metal crystal:

Question # 12

Lead, copper and wrought iron are examples of

Question # 13

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

Question # 14

The pattern of crystalline solid is:

Question # 15

When a stress changes length, it is called the

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The SI unit of stress is
A. N/m2
B. Nmc
C. dynes/m
D. N
2 The pattern of NaCl particles have a shape which is :
A. Cubic
B. Body centred cubic
C. Simple cubic
D. face centred
3 Examples of crystalline solids are:
A. Cooper
B. NaCl
C. Zirconia
D. Both (A) and (B)
4 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
5 The whole structure obtained by the repetition of unit cells is called:
A. Crystal lattice
B. Amorphous solid
C. Polymeric solid
D. Polysterne
6 The electrons occupying the conduction band are known as
A. conduction electrons
B. free electrons
C. both of them
D. none of them
7 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
8 The curie temperature of iron is about
A. 250°C
B. 500°C
C. 750°C
D. 1000°C
9 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them
10 When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as
A. impurification
B. adding
C. doping
D. extrinsivity

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