The ratio between the depths of water levels over crest on the downstream and upstream of the module, is known as

Related MCQs

• 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.)
• When the upstream face of a gravity dam is vertical, then the intensity of water pressure at the water surface and at the base respectively will be (where w is unit weight of water and H is the depth of water.)
• When the difference in weir crest and downstream river bed is limited into 3 metres, the weir, generally used is
• As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at
• 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 flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are
• When the water is thrown into a well over a crest from where it escapes near its bottom, the type of fall is called
• An outlet in which the discharge depends upon the difference in level between the water levels in distributing channel and the water course, is known as
• The discharge (Q) over trapezoidal crest of Sarda fall is
• In a Sarda type fall, the trapezoidal crest is used for discharges over 14 m3/s.