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Steam Nozzles and Turbines - Data Intensity 1 Multiple Questions and Answers.
| 6. | The rate of discharge through the nozzle _____ when the exit pressure is gradually reduced. | ||
| A. | remains same | ||
| B. | decreases | ||
| C. | increases | ||
| D. | none of above | ||
| 7. | In a nozzle, whole frictional loss is assumed to occur between | ||
| A. | inlet and thoroat | ||
| B. | inlet and outlet | ||
| C. | throat and exit | ||
| D. | all of these | ||
| 8. | The critical pressure ratio for initially wet steam is | ||
| A. | 0.546 | ||
| B. | 0.577 | ||
| C. | 0.582 | ||
| D. | 0.601 | ||
| 9. | The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be | ||
| A. | 0.4 | ||
| B. | 0.56 | ||
| C. | 0.67 | ||
| D. | 1.67 | ||
| 10. | The impulse reaction turbine has its driving force | ||
| A. | as an impulsive force | ||
| B. | as a reaction force | ||
| C. | partly as an impulsive force and partly as a reaction force | ||
| D. | none of the above | ||
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