Civil Engineering :: Irrigation Engineering
- Finally formed berms in canals are provided for
- Canals constructed for draining off water from water logged areas, are known
- A hydroelectric scheme operating under a head of 80 m will be classified as
- Irrigation water having the concentration of Na++ , Ca++ and Mg++ as 20, 3 and 1 Milli equivalent per litre respectively will be classified as
- If d1 is the depth of cutting, d2 is the height of the bank from bed level r2 : 1 and r1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is
- A minimum of 90 cm free board is provided if the discharge in the canal is between
- If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is
- The difference in level between the top of a bank and supply level in a canal, is called
- The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called
- The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to