| 26. | To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate) |
| a. | increase both 'G' and 'S'. |
| b. | decrease both 'G' and 'S'. |
| c. | increase 'S' and decrease 'G'. |
| d. | increase 'G' and decrease 'S' |
| View Answer Report Discuss 50-50! |
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Answer: (c).increase 'S' and decrease 'G'.
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| 27. | In distillation columns, the number of bubble caps per tray primarily depends upon the |
| a. | allowable liquid velocity. |
| b. | allowable gas velocity. |
| c. | allowable gas and liquid velocities. |
| d. | feed composition. |
| View Answer Report Discuss 50-50! |
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Answer: (c).allowable gas and liquid velocities.
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| 28. | In distillation, overhead product contains |
| a. | only one component |
| b. | two components |
| c. | any number of components |
| d. | only saturated liquid |
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Answer: (c).any number of components
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| 29. | With increase in pressure, the relative volatility for a binary system |
| a. | increases. |
| b. | decreases. |
| c. | remains same. |
| d. | either (a) or (b), depends on the system. |
| View Answer Report Discuss 50-50! |
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Answer: (b).decreases.
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| 30. | Low viscosity absorbent is preferred for reasons of |
| a. | rapid absorption rates and good heat transfer characteristics. |
| b. | improved flooding characteristics. |
| c. | low pressure drop on pumping. |
| d. | all (a), (b) and (c). |
| View Answer Report Discuss 50-50! |
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Answer: (d).all (a), (b) and (c).
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