Introduction to Material Science » Exercise – 1
6. A glass is a/an :
(a) good conductor
(b) semiconductor
(c) insulator
(d) resistive material
7. Ceramics are good :
(a) insulators
(b) conductors
(c) superconductors
(d) semiconductors
8. The heating elements of electric irons are made of :
(a) Copper
(b) Nichrome
(c) Constantan
(d) Aluminium
9. The most malleable, ductile low resistivity material is :
(a) Copper
(b) Aluminium
(c) Silver
(d) Iron
10. The percentage of carbon in mild steel is :
(a) 0.08 to 0.3 %
(b) 0.5 to 1.4 %
(c) 2.35 %
(d) 0.5 %
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