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Fertilizer Technology-Data Intensity 4 Multiple Questions and Answers.
Exercise Questions ::
Fertilizer Technology
1. | Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of ________ this is normally not done? |
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| A. | Increased biuret formation |
| B. | High corrosion rate |
| C. | Increased cost of equipment |
| D. | All of above |
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Published by:Michael Daani
2. | The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about ______ percent? |
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| A. | 60 |
| B. | 30 |
| C. | 95 |
| D. | 100 |
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Published by:Michael Daani
3. | Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of__? |
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| A. | Phosphoric acid |
| B. | Superphosphate |
| C. | Phosphorous |
| D. | Triple superphosphate |
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Published by:Michael Daani
4. | Lower temperature and large excess of ammonia in urea melt? |
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| A. | Increases biuret formation |
| B. | Decreases biuret formation |
| C. | Is undesirable |
| D. | Does not effect biuret formation |
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Published by:Michael Daani
5. | Bio-fertilisers are cheaper, renewable and pollution free. They improve the _______ of the soil? |
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| A. | Nutrient supply |
| B. | Texture |
| C. | Water holding capacity |
| D. | All of above |
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Published by:Michael Daani
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