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Question Statement for 25-30: Water at 10°C flows in a 3-meter diameter semicircular channel half-full at an average vel
Posted: Thu May 05, 2022 12:03 pm
by answerhappygod
- Question Statement For 25 30 Water At 10 C Flows In A 3 Meter Diameter Semicircular Channel Half Full At An Average Vel 1 (34 KiB) Viewed 52 times
Question Statement for 25-30: Water at 10°C flows in a 3-meter diameter semicircular channel half-full at an average velocity of 2.5 m/s. 25. What is the hydraulic radius (m)? (a) 0.5 (b) 0.75 (c) 1.0 (d) 1.25 (e) 1.5 26. What is the Reynolds number? (a) 8.0 x 10^5 (b) 9.0 x 10^5 (c) 0.5 x 10^6 (d) 1.5 x 10^6 (e) 2.5 x 10^6 27. What is the hydraulic depth (m)? (a) 0.75 (b) 1.0 (c) 1.178 (d) 1.278 (e) 1.5 28. What is the Froude number (Fr)? (a) 0.50 (b) 0.75 (c) 1.0 (d) 1.25 (e) 1.5 29. Is the flow critical or subcritical (circle one)? (a) critical (b) subcritical 30. If mannings n = 0.013, what slope (%) is required to maintain the velocity of 2.5 m/s? (a) 0.10 (b) 0.15 (c) 0.25 (d) 0.50 (e) 1.0