ECAT Pre Engineering Physics Chapter 17 MCQ Test With Answer

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

Question # 2

The crystalline structure of NaCI is

Question # 3

Examples of polymeric substances are:

Question # 4

In the phenomenon of hysteresis

Question # 5

The solids are classified as:

Question # 6

Synthetic materials fall into the category of

Question # 7

Each atom in metal crystal:

Question # 8

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

Question # 9

There is a regular arrangement of molecules in a

Question # 10

The units of modulus of elasticity are

Question # 11

The charged nucleus of an atom itself spins its magnetic field

Question # 12

The electrons occupying the conduction band are known as

Question # 13

The critical temperature of mercury is

Question # 14

If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be

Question # 15

In a semi-conductor material, the total current is

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
2 There is a regular arrangement of molecules in a
A. amorphous solids
B. polymeric solids
C. crystalline solids
D. none of them
3 The ratio of shearing stress/shearing strain is called as
A. Modulus
B. Pascal modulus
C. Hooker's modulus
D. Shear modulus
4 Arsenic, antimony and phosphorus are the elements from
A. third group
B. fourth group
C. fifth group
D. none of them
5 The ratio of linear stress/linear strain is called as
A. Yong's modulus
B. Bulk modulus
C. Shear modulus
D. Modulus
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 Each atom in metal crystal:
A. Remains fixed
B. Vibrates about a fixed point
C. Moves randomly
D. Rotates about center of a crystal
8 Whenever a covalent bond is broken in an intrinsic semi-conductor
A. hole is created
B. an electron is created
C. an electron-hole pair is generated
D. all of them
9 Any superconductor with critical temperature above 77 K, is referred as
A. low temperature superconductor
B. high temperature superconductor
C. very low temperature superconductor
D. none of them
10 In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of:
A. Adhesive force
B. Nuclear forces
C. Inter atomic cohesive force
D. Electromagnetic force

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