Irrigation Questions

• In a concrete canal the approximate permissible velocity of water should not exceed
• If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle θ with horizontal, the hydraulic mean depth is
• The ratio of the rate of change of discharge of an outlet and parent channel, is known as
• Finally formed berms in canals are provided for
• V and R are the regime mean velocity and hydraulic mean depth respectively in metres. Lacey's silt factor f is
• According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is
• An outlet is said to be proportional if its flexibility, is
• For diversion of flood water of rivers, the type of canal constructed, is
• Lacey's equation for calculating flood discharge in rivers, is
• Garnett's diagrams are used for graphical solution of design equations of a canal by
• Which one of the following statements is correct?
• For cereal crops the most commonly adopted method of irrigation, is
• In case of a trapezoidal notch fall
• A counter berm is
• If D1 and D2 are depths of water upstream and down stream of a hydraulic jump, the loss of head at the jump, is
• The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as
• The most suitable section of a lined canal, is
• In a syphon aqueduct
• A current meter measures the velocity of flow, if it is held
• Pick up the correct statement from the following