Electrical Engineering Materials MCQ Questions & Answers

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Learn Electrical Engineering Materials MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Electrical Engineering Materials MCQ question is the important chapter for a Electrical Engineering and GATE students. Page-3 section-1

High resistivity materials are used in

A) Precision instruments B) Heating elements C) Motor starters D) Incandescent lamps E) All of the above

Discuss

Answer & Solution

Answer: Option E

No explanation is given for this question. Let's Discuss on Board

Low resistivity materials are used in

A) Transformer, motor and generator windings B) Transmission and distribution lines C) House wiring D) All above applications

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Most of the common metals have _________ structure.

A) Linear B) Hexagonal C) Orthorhombic D) Cubic

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following materials does not have covalent bonds ?

A) Organic polymers B) Silicon C) Metals D) Diamond

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

For germanium the forbidden energy gap is

A) 0.15 eV B) 0.25 eV C) 0.5eV D) 0.7eV

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Thermonic emission occurs in

A) Vacuum tubes B) Copper conductors C) Ferrite cores D) Transistors

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Answer & Solution

Answer: Option A

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Copper, even though costly, finds use in the windings of electrical machines because

A) Copper points offer low contact resistance B) Copper can be easily soldered and welded C) Copper windings are less bulky and the machines become compact D) All of the above

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

_______ has zero temperature co-efficient of resistance.

A) Aluminium B) Carbon C) Porcelain D) Manganin

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following is a semiconductor material ?

A) Phosphorous B) Rubber C) Silicon D) Aluminium

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Constantan contains

A) Silver and tin B) Copper and tungsten C) Tungsten and silver D) Copper and nickel

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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Electrical Engineering Materials MCQ Questions & Answers | Electrical Engineering