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Hydraulics - Engineering

Q1:

Pick up the incorrect statement from to following regarding triangular notch :

A For measuring low discharge, it gives more accurate result

B Only one reading (i.e. H) is required for computation of discharge

C Ventilation is necessary

D None of these.

ANS:C - Ventilation is necessary

The incorrect statement regarding the triangular notch is:

  • For measuring low discharge, it gives more accurate results.
Triangular notches are primarily used for measuring relatively higher discharge rates, and they may not provide accurate results for low discharge rates. For low discharge rates, other types of weirs or devices may be more suitable. Therefore, the statement suggesting that triangular notches give more accurate results for low discharge rates is incorrect.