The aqueduct or superpassage type of works are generally used when

Related MCQs

• When the full supply level (F.S.L.) of the canal is much below the bed level of the drainage trough, then the cross drainage provided is called syphon aqueduct.
• In case of syphon aqueduct, the H.F.L. of the drain is
• The floor of the aqueduct is subjected to uplift pressure due to
• Trough stage of river is most suitable location for diversion head works.
• The river training works are adopted on a river
• A side slope canal, cross-drainage works are completely eliminated.
• When the difference in weir crest and downstream river bed is limited into 3 metres, the weir, generally used is
• For wave action in dams, the maximum height of freeboard is generally taken to be equal to (where hw is height of wave.)
• Generally the weir is aligned at right angles to the direction of the main river current because
• If D is the depth of scour below original bed, then the width of launching apron is generally taken as