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A. elements
C. mixtures
B.
compounds
D.
composite materials
2.
… is a matrix with a reinforced material inside it.
A. An element
C. A mixture
B. A compound
D.
A composite material
3.
… includes two or more elements which are not chemically bound.
A. An element
C. A mixture
B. A compound
D. A composite material
4.
… cannot be broken into separate constituents.
A. An element
C. A mixture
B. A compound
D. A composite material
5.
Cast iron and steel are … .
A. elements
C. mixtures
B. compounds
D. composite materials
6.
Copper is … .
A. an element
C. a mixture
B. a compound
D. a composite material
7.
Polymers are representatives of … .
A. ceramics
C. non-metallic materials
B. plastics
D. thermosets
8.
… polymers are usually called “plastics”.
A.
Natural
B. Synthetic
C. Cheap
D. Non-rusting
9.
Ceramics are … .
A. ductile
B. stiff
C. malleable
D. lightweight
10.
A lot of engineering materials are … to engineer.
A. flexible
B. brittle
C. available
D. subsequent
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