Gk Questions with AnswersGeneral Science Gk Questions
DIRECTIONS : Objective Question on General Science.
| 11. | The hardest substance available on earth is | ||
|---|---|---|---|
| A. Platinum | |||
| B. Diamond | |||
| C. Coal | |||
| D. Gold | |||
| 12. | The average salinity of sea water is | ||
|---|---|---|---|
| A. 20% | |||
| B. 25% | |||
| C. 30% | |||
| D. 35% | |||
| 13. | Quartz crystals normally used in quartz clocks etc is chemically | ||
|---|---|---|---|
| A. Germanium oxide | |||
| B. Silicon dioxide | |||
| C. Sodium silicate | |||
| D. Carbon dioxide | |||
| 14. | The hydraulic brakes used in automobiles is a direct application of | ||
|---|---|---|---|
| A. Toricellian law | |||
| B. Archimedes principle | |||
| C. Bernoulli's theorem | |||
| D. Pascal's law | |||
| 15. | Nuclear fission is caused by the impact of | ||
|---|---|---|---|
| A. Proton | |||
| B. Electron | |||
| C. Neutron | |||
| D. Both A and B | |||