Irrigation engineering questions with answers
224 multiple-choice questions. Open any question for its answer and explanation.
- The uplift pressure on a dam can be controlled by i) constructing cutoff under upstream face ii) constructing drainage channels bet-ween the dam and its foundation iii) by pressure grouting in foundation The corret answer is
- If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be
- The width of a meander belt is the transverse distance between
- Pick up the correct statement from the following
- The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is
- The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be
- The main function of a diversion head works of a canal from a river, is
- The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called
- For wave action in dams, the maximum height of freeboard is generally taken to be equal to (where hw is height of wave.)
- The intensity of irrigation means
- Trap efficiency of a reservoir is a function of
- Seepage through embankments in an earthen dam is controlled by
- A river is said to be of
- An artesian aquifer is the one where
- For a unique design of a channel by Kennedy's theory
- The scour depth D of a river during flood, may be calculated from the Lacey's equation
- Unit of runoff in M.K.S. system is
- Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?
- The main cause of meandering is
- According to Kennedy, the critical velocity (V0) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).
- A 70% index of wetness means
- Useful soil moisture for plant growth, is
- The state of the soil when plants fail to extract sufficient water for their requirements, is
- The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are
- V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is