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This set of Engineering Materials Science "Multiple Choice Questions & Answers" are based on “CLASSIFICATION OF MATERIALS”

CLASSIFICATION OF MATERIALS

Multiple Choice Questions (MCQ)

1) Match the following class of material given in column-I with their example given in column-II.

COLUMN-I	COLUMN-II
P. Metals	i. GFRP
Q. Ceramics	ii. Plexiglas®
R. Polymers	iii. Steel
S. Composites	iv. Concrete
	v. Nylon

A. P-iii, Q-iv, R-ii, S-i

B. P-iii, Q-iv, R-v, S-ii

C. P-iv, Q-ii, R-v, S-i

D. P-iv, Q-ii, R-v, S-i

Correct Answer is "A"

COLUMN-I	COLUMN-II
P. Metals	iii. Steel
Q. Ceramics	iv. Concrete
R. Polymers	ii. Plexiglas® v. Nylon
S. Composites	i. GFRP

2) In terms of which of the following properties, metals are better than ceramics?

A. Hardness

B. Ductility

C. Toughness

D. Yield Strength

Correct Answer is "B"

Metals are better ductile than ceramics

3) Composite materials are

A. Made mainly to improve temperature resistance.

B. Used for improved optical properties.

C. Made with strong fibres embedded in weaker and softer matrix to obtain strength better than strength of matrix.

D. Made with strong fibres embedded in weaker and softer matrix to obtain strength better than strength of both matrix and filler.

Correct Answer is "C"

Composite materials are Made with strong fibres embedded in weaker and softer matrix to obtain strength better than strength of matrix.

4) Example of naturally occurring composite is-

A. Wood

B. Cement

C. Glass

D. GFRP

Correct Answer is "A"

Example of naturally occurring composite is Wood

5) Polymers are

A. Paramagnetic

B. Ferromagnetic

C. Diamagnetic

D. Non-magnetic

Correct Answer is "D"

Polymers are Non-magnetic

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