Material Science online Quiz Questions - Set 04

G.K. Practice Test: Question Set - 04

1. The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
    (A) Argon
    (B) Xenon
    (C) Helium
    (D) Krypton

2. Heavy water is
    (A) Deuterium oxide
    (B) PH7
    (C) Rain water
    (D) Tritium oxide

3. Which of the following is in liquid form at room temperature?
    (A) Lithium
    (B) Sodium
    (C) Francium
    (D) Cerium

4. The filament of an electric bulb is made of
    (A) Tungsten
    (B) Nichrome
    (C) Graphite
    (D) Iron

5. Balloons are filled with
    (A) Nitrogen
    (B) Helium
    (C) Oxygen
    (D) Argon

6. Which of the following metals remain in liquid for under normal conditions?
    (A) Radium
    (B) Zinc
    (C) Uranium
    (D) Mercury

7. Chemical formula for water is
    (A) NaAlO2
    (B) H2O
    (C) Al2O3
    (D) CaSiO3

8. Bromine is a
    (A) Black solid
    (B) Red liquid
    (C) Colorless gas
    (D) Highly inflammable gas

9. In which of the following activities silicon carbide is used?
    (A) Making cement and glass
    (B) Disinfecting water of ponds
    (C) Cutting very hard substances
    (D) Making casts for statues

10. Among the various allotrope of carbon
    (A) Coke is the hardest, graphite is the softest
    (B) Diamond is the hardest, coke is the softest
    (C) Diamond is the hardest, graphite is the softest
    (D) Diamond is the hardest, lamp black is the softest

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Material Science GK
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