General Knowledge : General Science QUESTIONS AND ANSWERS :: part24 : 1 to 5
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :
1.Soap is used in washing because : |
| it lowers the surface tension of water |
| it increases the surface tension of water |
| increasesthe viscosity of water |
| decreases the viscosity of water |
2.Which of the following statements regarding the uses of diamond are correct ? 1. Dimond being the hardest substance, is used in glass cutters and rock drilling equipment. 2. Because of its extraordinary sensitivity to heat rays, diamond is used for making high precision thermometers.3. Sharp-edged diamonds are used by eye-surgeons as a tool to remove catarct from eyer.4. Because of its ability to keep out the harmful radiations, diamond is used for making protective windows for space satellites. |
| 1, 2 and 3 |
| 2, 3 and 4 |
| 1, 2 and 4 |
| 1, 2, 3 and 4 |
3.Speed of sound is greater in solids than in liquids because : |
| the atoms in solids are regularly arranged |
| the atoms in liquids are loosely packed |
| the solids have high elasticity |
| none of these |
4.Transfer of heat emergy from the sun to the moon takes place by : |
| radiation only |
| radiation and condsuction |
| radiation and convection |
| radiation, conduction and convection |
5.Microphone is a device in which : |
| sound waves are directly transmitted |
| electrical energy is cnverted into sound waves directly |
| sound waves are converted into electrical energy and then reconverted into sound after transmission |
| amplification is not required at all |
More General Science QUESTIONS AND ANSWERS available in next pages
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