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Fuels and Combustion-Data Intensity 1 Multiple Questions and Answers.
| 6. | In flue gas analysis by Orsat�s apparatus, carbon monoxide is absorbed by___? | ||
| A. | Cuprous chloride | ||
| B. | Potassium hydroxide | ||
| C. | Alkaline pyrogallol solution | ||
| D. | None of these | ||
| 7. | Washing of coal decreases its___? | ||
| A. | Caking index | ||
| B. | Ash content | ||
| C. | Mineral matter content | ||
| D. | None of above | ||
| 9. | The gas which contributes maximum to the heating value of natural gas is? | ||
| A. | CO | ||
| B. | CO2 | ||
| C. | H2 | ||
| D. | CH4 | ||
| 10. | Nitrogen in coal____? | ||
| A. | Is present upto 1-2% | ||
| B. | Comes from protein in parent vegetable matter | ||
| C. | Is recovered as ammonia during its carbonisation | ||
| D. | All of above | ||
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