Question:

The weir, which commonly used to measure medium discharges is

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Cipolletti weir is commonly used for medium discharge measurement in open channels.
  • Cipolletti weir
  • Contracted weir
  • Rectangular weir
  • V-notch weir
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The Correct Option is A

Solution and Explanation

Concept:
A weir is a hydraulic structure used to measure discharge in open channels.

Step 1:
Different types of weirs are used for different flow ranges.

Step 2:
V-notch weirs are generally suitable for small discharges because they are sensitive at low flows.

Step 3:
Cipolletti weir is a trapezoidal weir.

Step 4:
It is commonly used for measuring medium discharges.

Step 5:
Therefore, the correct answer is Cipolletti weir. \[ \boxed{\text{Cipolletti weir}} \]
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