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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