MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Hydraulic Machines knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If diameter of jet is 85mm and diameter of runner is 1.5 meter then depth of buckets is ___________ |
| A. | 100mm |
| B. | 105mm |
| C. | 106mm |
| D. | 102mm |
| Answer» E. | |
| 2. |
If diameter of jet is 85mm and diameter of runner is 1.5 meter then calculate width of buckets. |
| A. | 400mm |
| B. | 500mm |
| C. | 420mm |
| D. | 425mm |
| Answer» E. | |
| 3. |
____________ is obtained by dividing total rate of flow through the turbine by rate of flow through single jet. |
| A. | Number of jets |
| B. | Diameter of jets |
| C. | Velocity of jets |
| D. | Speed ratio |
| Answer» B. Diameter of jets | |
| 4. |
Number of buckets on runner of Pelton wheel is given by expression? (D-diameter of runner and d- diameter of jet) |
| A. | 15 + D/2d |
| B. | 15 + 3D/2d |
| C. | 15 + D/d |
| D. | 15 + 2D/d |
| Answer» B. 15 + 3D/2d | |
| 5. |
_____________IS_OBTAINED_BY_DIVIDING_TOTAL_RATE_OF_FLOW_THROUGH_THE_TURBINE_BY_RATE_OF_FLOW_THROUGH_SINGLE_JET.?$ |
| A. | Number of jets |
| B. | Diameter of jets |
| C. | Velocity of jets |
| D. | Speed ratio |
| Answer» B. Diameter of jets | |
| 6. |
If diameter of jet is 85mm and diameter of runner is 1.5 meter then depth of buckets is ___________$ |
| A. | 100mm |
| B. | 105mm |
| C. | 106mm |
| D. | 102mm |
| Answer» E. | |
| 7. |
If diameter of jet is 85mm and diameter of runner is 1.5 meter then calculate width of buckets.$ |
| A. | 400mm |
| B. | 500mm |
| C. | 420mm |
| D. | 425mm |
| Answer» E. | |
| 8. |
The ratio of diameter of jet to diameter of runner is _____________ |
| A. | 1:3 |
| B. | 1:6 |
| C. | 1:5 |
| D. | 3:4 |
| Answer» C. 1:5 | |
| 9. |
The width of Pelton wheel should be 5 times the diameter of jet? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
If diameter of jet is 85mm and diameter of runner is 1.5 meter then calculate number of buckets on Pelton wheel approximately |
| A. | 20 |
| B. | 22 |
| C. | 23 |
| D. | 25 |
| Answer» E. | |
| 11. |
Number of buckets on runner of Pelton wheel is given by expression? (D-diameter of runner and d- diameter of jet? |
| A. | 15 + D/2d |
| B. | 15 + 3D/2d |
| C. | 15 + D/d |
| D. | 15 + 2D/d |
| Answer» B. 15 + 3D/2d | |
| 12. |
In most of cases the value of jet ratio is _______________ |
| A. | 10 |
| B. | 11 |
| C. | 12 |
| D. | 13 |
| Answer» D. 13 | |
| 13. |
The number of buckets of Pelton wheel is 25 and diameter of runner is 1.5meters then calculate diameter of jet is ___________ |
| A. | 80mm |
| B. | 85mm |
| C. | 90mm |
| D. | 82mm |
| Answer» C. 90mm | |
| 14. |
Find the diameter of jet D, if jet ratio m and diameter of jet d are given as 10 and 125mm. |
| A. | 1.25 meters |
| B. | 1.5 meters |
| C. | 2 meters |
| D. | 1.2 meters |
| Answer» B. 1.5 meters | |
| 15. |
The ratio of pitch diameter of Pelton wheel to diameter of jet is known as ___________ |
| A. | Speed ratio |
| B. | Jet ratio |
| C. | Velocity ratio |
| D. | Co-efficient of velocity |
| Answer» C. Velocity ratio | |
| 16. |
The depth of buckets of Pelton wheel ____________ |
| A. | 1.2 times diameter of jet |
| B. | 1.3 times diameter of jet |
| C. | 1.4 times diameter of jet |
| D. | 1.5 times diameter of jet |
| Answer» B. 1.3 times diameter of jet | |
| 17. |
The width of buckets of Pelton wheel is _________________ |
| A. | 2 times diameter of jet |
| B. | 3 times diameter of jet |
| C. | 4 times diameter of jet |
| D. | 5 times diameter of jet |
| Answer» E. | |
| 18. |
Design of Pelton wheel means the following data is to be determined. |
| A. | Width of buckets |
| B. | Depth of buckets |
| C. | Number of buckets |
| D. | All of the mentioned |
| Answer» E. | |