The discharge in an open channel is generally measured by
- AVenturimeter
- BOrificemeter
- CManometer
- DVenturiflumeCorrect
Solution
Concept
Open-channel flow measurement
Step-by-step solution
1. Venturimeter and orificemeter are for closed pipes. 2. A venturi flume (and weirs) is used in open channels.
Explanation
Venturimeter and orificemeter are for closed pipes.
Why the other options are wrong
Manometers measure pressure.
Correct answer: D) Venturiflume