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A venturimeter having a throat diameter of 0.1 m is used to estimate the flow rate of a horizontal pipe having a diameter of 0.2 m. For an observed pressure difference of 2 m of water head and coefficient of discharge equal to unity, assuming that the energy losses are negligible, the flow rate (in m³ /s) through the pipe is approximately equal to
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- 0.500
- 0.150
- 0.050
- 0.015
Correct Option: C
| A1 = | × (0.2)2 = 0.01 π | |
| 4 |
| A2 = | × (0.1)2 = 0.0025 π | |
| 4 |
| Q = | = 0.5 m3/s | |
| √A1² − A2² |
