
General Knowledge : General Science QUESTIONS AND ANSWERS :: part23 : 51 to 55
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :
51.Which of the following waves can propagate in a vacuum ? 1. Radio waves 2. Light waves3. X-rays 4. Ultrasonic waves Select the correct answer using the codes given below : |
| 1, 2 and 3 |
| 1, 2, 3 and 4 |
| 2, 3 and 4 |
| 1 and 4 |
52.Which of the following is the lightest metal ? |
| Mercury |
| Silver |
| Lithium |
| Lead |
53.The element common to all acids is : |
| carbon |
| hydrogen |
| oxygen |
| sulphur |
54.The charcoal to decolourise raw sugar is : |
| animal charcoal |
| sugar charcoal |
| coconut charcoal |
| wood charcoal |
55.A small weight is put on the pressure cooker. It increases the pressure of the steam because : |
| the weight is proportionate to the steam required |
| area of contact is small |
| the weight stops the steam from escaping |
| of Bernoullis principle |
More General Science QUESTIONS AND ANSWERS available in next pages
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