General Knowledge : General Science QUESTIONS AND ANSWERS :: part1 : 16 to 20
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2024 examinations :
16.Which of the following used as a lubricant ? |
| Graphite |
| Silica |
| Diamond |
| Iron oxide |
17.The average salinity of sea water is |
| 2% |
| 2.5% |
| 3% |
| 3.5% |
18.The element required for solar energy conversion is |
| Beryllium |
| Silicon |
| Tantalum |
| Ultra pure carbon |
19.Consider the following statements regarding graphite : 1. It is an allotrope of carbon. 2. It is a good conductor of heat and electricity. 3. It can be artificially produced.Of these statements, |
| 1, 2 and 3 are correct. |
| 1 and 2 are correct. |
| 1 and 3 are corrcet |
| 2 and 3 are correct. |
20.An element that does not occur in nature but can be produced artificially is |
| thorium |
| radium |
| plutonium |
| uranium |
More General Science QUESTIONS AND ANSWERS available in next pages
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