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Steam Nozzles and Turbines - Data Intensity 1 Multiple Questions and Answers.
| 26. | A binary vapour plant consists of | ||
| A. | steam turbine | ||
| B. | steam condenser | ||
| C. | mercury boiler | ||
| D. | all of these | ||
| 27. | In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p2) will be | ||
| A. | 3.3 bar | ||
| B. | 5.46 bar | ||
| C. | 8.2 bar | ||
| D. | 9.9 bar | ||
| 28. | The stage efficiency (?S) is given by (where ?B = Blading efficiency, and ?N = Nozzle efficiency) | ||
| A. | ?S = ?B x ?N | ||
| B. | ?S = ?B/?N | ||
| C. | ?S = ?N/?B | ||
| D. | none of these | ||
| 29. | The turbine blades are | ||
| A. | straight | ||
| B. | circular | ||
| C. | curved | ||
| D. | none of above | ||
| 30. | The variation of steam pressure in the nozzle depends upon | ||
| A. | velocity of steam | ||
| B. | specific volume of steam | ||
| C. | dryness fraction of steam | ||
| D. | all of these | ||
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