Engineering Board Exam Reviewer · Fluid Mechanics · easy

The Hazen–Williams formula is commonly used for:

1. Flow of gases in ducts
2. Flow over weirs
3. Water flow in pipes
4. Open channel flow in rivers only

Answer

C. Water flow in pipes

Solution

V = 0.849 C R0.63 S0.54 (SI), where C is the Hazen–Williams roughness coefficient.

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