General Knowledge : General Science QUESTIONS AND ANSWERS :: part2 : 16 to 20
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :
16.The variety of coal in which the deposit contains recognisable traces of the orginal plant material is |
| anthracite |
| lignite |
| peat |
| bitumen |
17.How many colours the sunlight spectrum has ? |
| Five |
| Three |
| Seven |
| Four |
18.Which of the following are thermosetting plastics ? 1. Melamine 2. PVC 3. Bakelite |
| 1 and 2 |
| 2 and 3 |
| 1 and 3 |
| 1, 2 and 3 |
19.Which type of fire extinguisher is used for petroleum fire ? |
| Foam type |
| Soda acid type |
| Powder type |
| None of these |
20.Which of the following ores does not contain iron ? |
| Haematite |
| Magnetite |
| Limonite |
| Cassiterite |
More General Science QUESTIONS AND ANSWERS available in next pages
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