MATERIAL SCIENCE - Quiz

1) What is the ore of aluminium?

Hematite Mallatite Bauxite Lemonite

2) Which property of a metal enables it by which it can be drawn out into wires under tension without rupture?

Ductility Malleability Hardness Brittleness

3) Which among the following is an insulator?

Copper Aluminium Silver Mica

4) Which rubber is used as insulator for power cables and control wires?

Butyl Hypalone Silicon Nitrite butadiene

5) Which alloy steel is used to make permanent magnets?

Silicon steel Manganese steel Vanadium steel Cobalt steel