1000+ Materials Science MCQ Questions and Answers Pdf - 1

Question: 1

Lead is used in

(A) batteries

(B) electromagnets

(C) commutator segments

(D) transformer cores

Ans: A

batteries

Question: 2

Hydrolysis is

(A) a process for manufacturing heavy water

(B) a chemical reaction in which water is decomposed

(C) removal of moisture under high pressure and temperature

(D) removal of moisture by natural evaporation

Ans: B

a chemical reaction in which water is decomposed

Question: 3

Polythene is

(A) a cellulose derivative

(B) impregnated cotton

(C) a vulcanized rubber

(D) a polymer of ethylene

Ans: D

a polymer of ethylene

Question: 4

Resistors commonly used in power circuits are

(A) deposited metal resistors

(B) etched circuit resistors

(C) wire wound resistors

(D) carbon resistors

Ans: C

wire wound resistors

Question: 5

Which of the following instruments is used to record sound?

(A) phonograph

(B) dictaphone

(C) headphone

(D) amplifier

Ans: A

phonograph

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