General Science-4

1. Convex lens are used for correction of:
a. Short-sightedness
b. Long-sightedness
c. Cataract
d. None of these

2. One litre of water is equivalent to:
a. 1.5 kg
b. 1.25 kg
c. 1.00 kg
d. 0.9 kg

3. Metals are good conductor of electricity because:
a. The atoms are highly packed
b. They have high melting point
c. They have free electrons
d. All of the above

4. In the process of galvanization an iron sheet is coated with:
a. Zinc
b. Aluminium
c. Tin
d. Magnesium

5. H1N1 Flu is caused by
a. Virus
b. Bacteria
c. Cold
d. Fungus

6. Who discovered DNA?
a. J. Watsen
b. F. Crick
c. J. Watsen and F. Crick
d. R. Franklin

7. Which is the source of fuel for a Nuclear reactor?
a. Iron
b. Uranium
c. Carbon
d. Calcium

8. ‘Treadmill test’ (TMT) is conducted to treat
a. Heart
b. Lungs
c. Kidney
d. Legs

9. Ozone depletion is mainly caused by
a. Carbon-dioxide
b. CFC
c. CO
d. Nitrogen

10. The study of fossils is known as :
a. Patrology
b. Seismology
c. Palaeontology
d. Bathymetry