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

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

Question # 2

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

Question # 3

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

Question # 4

In a soft iron, domains are

Question # 5

The measure of the deformation in a solid when stress is applied to its is called

Question # 6

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

Question # 7

The word amorphous means:

Question # 8

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

Question # 9

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

Question # 10

A unit cell is smallest basic structure which is:

Question # 11

The magnetism produced by electrons within an atom can arise from

Question # 12

The pattern of crystalline solid is:

Question # 13

Within each domain, the magnetic field of all the spinning electrons are

Question # 14

Lead, copper and wrought iron are examples of

Question # 15

When a large number of atoms are brought close to one another to form a solid, each energy level of an isolated atom splits into sub-levels, called

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 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
2 In the phenomenon of hysteresis
A. magnetism leads the magnetising current
B. magnetism lags behind the magnetising current
C. meganetism goes along the magnetising current
D. none of them
3 Tick the one which is not a crystalline solid:
A. Zirconia
B. Glass
C. Copper
D. Ceramic solid
4 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
5 The critical temperature of mercury is
A. 1.18 K
B. 4.2 K
C. 3.72 K
D. 7.2 K
6 Synthetic materials fall into the category of
A. crystalline solids
B. amorphous
C. polymeric solids
D. all of them
7 The domains are of macroscopic size of the order of
A. centimeters
B. meters
C. millimeters
D. nanomneters
8 When a large number of atoms are brought close to one another to form a solid, each energy level of an isolated atom splits into sub-levels, called
A. energy bands
B. energy shells
C. states
D. all of them
9 The smallest three dimensional basic structure is called as:
A. An atom
B. Unit cell
C. Crystal lattice
D. Polymer
10 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them

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