Engineering Board Exam Reviewer · Fluid Mechanics · medium
Water flows at 2 m/s through a 200 mm pipe 500 m long. If f = 0.02, what is the head loss due to friction?
- 5.10 m
- 10.19 m
- 2.04 m
- 40.77 m
Answer
B. 10.19 m
Solution
hf = f(L/D)(V2/2g) = 0.02(500/0.2)(22/19.62) = 10.19 m.
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