Engineering Board Exam Reviewer · Fluid Mechanics · medium
What is the hydraulic radius of a circular pipe 400 mm in diameter flowing full?
- 200 mm
- 400 mm
- 50 mm
- 100 mm
Answer
D. 100 mm
Solution
R = A/P = (π D2/4)/(π D) = D/4 = 400/4 = 100 mm.
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