Which is the most commonly used shape of notch for fluctuating discharge?
Options:
Explanation:
The V-shaped notch, also known as the triangular notch, is most commonly used for fluctuating or variable discharge because it provides greater sensitivity at low flow rates. Its discharge varies with the square root of the head, making it suitable for accurately measuring a wide range of flow rates.
Answer:
Which is the most commonly used shape of notch for fluctuating discharge V-shaped notch.