The opening in the weir wall with a crest at low level on the canal side is known as under sluice or scouring sluice.

Related MCQs

• As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at
• When the difference in weir crest and downstream river bed is limited into 3 metres, the weir, generally used is
• The function of a scouring sluice is
• The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are
• When the levels are such that the F.S.L. of the canal is much above the bed level of the drainage trough, so that the canal runs under syphonic action under the trough, the structure provided is known as
• The crest of the under-sluices should be lower than the crest of the head regulator (if silt excluder is provided by at least
• The discharge passing over an ogee spillway is given by (where, L is effective length of spillway crest and H is the total head over the spillway crest including velocity head.)
• A baffle wall is a sort of low weir constructed at the end of the cistern to
• For a canal which irrigate the area directly, the fall should be provided at a location where the F.S.L. outstrips the gound level, but before the bed of the canal comes into filling.
• When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the under side of the supporting structure, the structure provided is super-passage.