MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Steam And Gas Turbines knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Velocity ratio is directly proportional to velocity in each row. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
When velocity in each row increases its velocity ratio __________ |
| A. | decreases |
| B. | remains constant |
| C. | increases |
| D. | none |
| Answer» D. none | |
| 3. |
Velocity ratio is directly proportional to square of velocity. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Velocity ratio is the integral of ________ of the velocity in each row. |
| A. | fourth power |
| B. | cube |
| C. | square |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 5. |
Efficiency of the four row impulse turbine with a velocity ratio of one seventh is ______ |
| A. | 55% |
| B. | 44% |
| C. | 34% |
| D. | 77% |
| Answer» C. 34% | |
| 6. |
Speed of the blade to speed of the gas ratio can be denoted by ___________ |
| A. | Alpha |
| B. | Sigma |
| C. | Gamma |
| D. | None of the mentioned |
| Answer» C. Gamma | |
| 7. |
For reaction turbines the optimum sigma value lies between _____________ |
| A. | 0.8 and 1.0 |
| B. | 0.6 and 1.0 |
| C. | 0.4 and 0.8 |
| D. | none of the mentioned |
| Answer» B. 0.6 and 1.0 | |
| 8. |
For two stage impulse turbine optimum sigma value lies between __________ |
| A. | 0.3 and 0.5 |
| B. | 0.2 and 0.4 |
| C. | 0.1 and 0.5 |
| D. | none of the mentioned |
| Answer» C. 0.1 and 0.5 | |
| 9. |
For single stage impulse turbine optimum sigma value lies between ____________ |
| A. | 0.4 and 0.6 |
| B. | 0.2 and 0.4 |
| C. | 0.1 and 0.3 |
| D. | none of the mentioned |
| Answer» B. 0.2 and 0.4 | |
| 10. |
Velocity ratio is represented by ___________ |
| A. | Alpha |
| B. | Beta |
| C. | Sigma |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |