MCQOPTIONS
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MCQOPTIONS
This section includes 4 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. |
The whirl velocity at inlet is 15 m/s and blade velocity is 10 m/s. The volume flow rate of water in 20 m3/s. Find the power output available at the shaft if the mechanical efficiency is 95% (in MW)? |
| A. | 2.85 |
| B. | 3.075 |
| C. | 6.55 |
| D. | 0.285 |
| Answer» B. 3.075 | |
| 2. |
The power available at the shaft of a Francis turbine is 1 MW. The volume flow rate of water in 25 m3/s, whirl velocity at inlet is 10 m/s and blade velocity is 5 m/s. Find the mechanical efficiency (in %)? |
| A. | 65 |
| B. | 75 |
| C. | 80 |
| D. | 90 |
| Answer» D. 90 | |
| 3. |
The volumetric efficiency of a given turbine is 80%. If volume flow rate of water in given to be 30 m3/s, find the volume of water (m3) NOT flowing over the runner blades per second? |
| A. | 5 |
| B. | 6 |
| C. | 10 |
| D. | 12 |
| Answer» C. 10 | |
| 4. |
The volumetric efficiency of a Francis turbine is given to be 90%. If the volume flow rate through the turbine is 25 m3/s. What is the flow rate of water over the runner blades (in m3/s)? |
| A. | 20 |
| B. | 25 |
| C. | 22.5 |
| D. | 21.5 |
| Answer» D. 21.5 | |