General Knowledge : General Science QUESTIONS AND ANSWERS :: part2 : 41 to 45
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :
41.The metallic constituents of hard water are |
| magnesium, calcium and tin |
| iron, tin and calcium |
| calcium, magnesium, tin and iron |
| magnesium, tin and iron |
42.The Contact Process is involved in the manufacture of |
| Nitric acid |
| Sulphuric acid |
| Ammonia |
| Caustic soda |
43.Which of the following is used as a coolant in nuclear reactors ? |
| Heavy water |
| Cadmium |
| Liquid sodium |
| Graphite |
44.Which of the following roofs provide better protection against heat ? |
| Cement slab |
| Asbestos sheets |
| Reinforced concrete |
| None of these |
45.The material used for bleaching paper pulp is |
| Chlorine |
| Caustic soda |
| Sodium hypochlorite |
| Lime |
More General Science QUESTIONS AND ANSWERS available in next pages
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