General Knowledge : General Science QUESTIONS AND ANSWERS :: part24 : 16 to 20
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :
16.Rocket works on the principle of : |
| conservation of mass |
| conservation of energy |
| conservation of momentum |
| none of these |
17.A body is stable if it has a : |
| broad base and a high centre of gravity |
| broad base and a low cnetre of gravity |
| narrow base and a high centre of gravity |
| narrow base and a low centre of gravity |
18.Which of the following statements are true regarding heat ? 1. Heat is a form of energy 2. Heat can be reflected by a mirror 3. Heat is an electromagnetic radiation4. Heat cannot pass through vacuum |
| 1, 2 and 3 |
| 1, 2 and 4 |
| 2, 3 and 4 |
| 1, 3 and 4 |
19.A permanent magnet repels : |
| ferromagnetic substances only |
| diamagnetic substances only |
| paramagnetic substances only |
| body paramagnetic and diamagnetic substances |
20.In T.V. transmission : |
| sound and video signals are transmitted simultaneously |
| sound is transmitted first and then the video signal follows |
| video signal is transmitted first, followed by sound signal |
| sound and video signals are transmitted from different places at the same time |
More General Science QUESTIONS AND ANSWERS available in next pages
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