Engineering Board Exam Reviewer · Fluid Mechanics · medium

Using Q = 1.4 H5/2 (SI), what is the discharge over a 90° V-notch weir under a head of 0.25 m?

  1. 43.75 L/s
  2. 175.00 L/s
  3. 87.50 L/s
  4. 57.50 L/s

Answer

A. 43.75 L/s

Solution

Q = 1.4(0.25)2.5 = 0.04375 m3/s = 43.75 L/s.

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