Electrical Engineering Materials Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “ Electrical Engineering Materials ”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Electrical Engineering Materials comprehensively.

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1.
The covalent bond is formed by_______________?

Transfer of electrons between atoms

Sharing of electrons between atoms

Sharing of variable number of electrons by a variable number of atoms

None of the above

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2.
The tiny block formed by the arrangement of a small group of atoms is called the____________?

Unit cell

Space lattice

Either A. or (b)

None of the above

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3.
is a negatively charged particle present in an atom______________?

Proton

Neutron

Electron

None of the above

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4.
The converse of hardness is known as______________?

Malleability

Toughness

Softness

None of the above

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5.
The formula __________ determines the number of electrons that can be accommodated in any level?

2n2

4n2

2n3

4ns

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6.
A perfect conductor has_____________?

Zero conductivity

Unity conductivity

Infinite conductivity

None of the above

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7.
Commonly used conducting materials are_____________?

Copper

Aluminium

Both (A) and (B)

Copper and silver

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8.
The kinetic energy of a bounded electron is______________?

Less than that of unbounded electron

Greater than that of unbounded electron

Equal to that of unbounded electron

Infinite

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9.
The metal having the lowest temperature coefficient of resistance is_________________?

Gold

Copper

Aluminium

Kanthal

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11.
A highly conductive material must have___________?

Highest conductivity

Lowest temperature co-efficient

Good mechanical strength

Good corrosion resistance

All of the above

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12.
Which of the following materials is preferred for transmitting electrical energy over long distance ?

Copper

Aluminium

Steel reinforced copper

Steel reinforced aluminium

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13.
Superconductors are becoming popular for use in________________?

Generating very strong magnetic field

Manufacture of bubble memories

Generating electrostatic field

Generating regions free from magnetic field

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14.
The superconductivity is due to____________?

The crystal structure having no atomic vibration at 0°K

All electrons interact in the super-conducting state

The electrons jump into nucleus at 0°K

None of the above

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15.
The conductivity of a conductor can be increased by_______________?

Decreasing its temperature

Increasing its temperature

Decreasing its vibration

Increasing its vibration

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