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The length of the weir will not exceed the bed width of the canal upstream, in case of trapezoidal notch fall.

The length of the weir will not exceed the bed width of the canal upstream, in case of trapezoidal notch fall. Correct Answer True

In this type when the notch is provided there is heading up or drawdown of water level in the canal near the fall. Therefore the whole width of the canal is divided into number of notches. The crest is kept higher than the bed level of the canal, but in no case the total length of the weir will not exceed the bed width of the canal upstream.

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