Irrigation Questions

• The depth of rice root zone, is
• Fundamental momentum equation for a hydraulic jump, is
• Pick up the incorrect statement from the following
• When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the underside of the supporting structure, the structure so provided, is called
• For the stability of a structure against seepage pressure according to Khosla's creep theory, the critical gradient is
• The discharge over a trapezoidal crest of a Sarda fall with free over fall conditions, is
• A water-logged land is found suitable for cultivation due to
• In a Sarda type fall, the rectangular crest, may be used for discharge upto
• If q is the discharge per unit width of a channel and D1 D2 are the depths of water before and after hydraulic jump, the following relationship is true
• The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called
• The sensitivity of a rigid module, is
• A hydraulic jump is generally formed when a stream moving with
• Meandering of a river generally occurs, in
• Regime conditions in a channel may occur if
• The main cause of silting up a channel,
• The optimum depth of kor watering for a rice crop, is
• Bligh's theory of seepage assumes
• In north Indian Plains, optimum depth of kor watering for wheat, is
• If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hactare/cumec, the relationship which holds good, is
• Canals taken off from ice-fed perennial rivers, are known