Liquid flow rate in an open channel cannot be measured by a/an __________________?
Correct answer: A. Orifice meter
- A. Orifice meter
- B. Cipolletti weir
- C. Rectangular weir
- D. V-notch
Explanation
An orifice meter is a closed-conduit differential-pressure device and cannot directly measure flow in an open channel. Cipolletti, rectangular, and V-notch weirs are all commonly used for open-channel flow measurement.
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