Definition. Benefits and ill effects of irrigation. Sources of water for irrigation. Systems of irrigation : Surface and ground water, flow irrigation, Lift irrigation, Bhandhara irrigation. Methods of irrigation in India – Potential and development.
Definition of duty, Delta and Base period, Relationship between Duty, Delta and Base period, Factors affecting duty of water. Crops and crop seasons in India, Crops grown in Karnataka, their seasons, local names. Agro-climatic zones of Karnataka. Irrigation efficiency, Frequency of irrigation.
CANALS: Definition. Types of canals, Alignment of canals. Design of canals by Kennedy’s and Lacey’s methods. 4 Hours CANAL WORKS: Canal regulators: Classification and suitability. Canal drops: Classification. Hydraulic design principles for notch type drop. Cross drainage works: Classification. Hydraulic design principles for an aqueduct. 4 Hours
Definitions. Investigation for reservoir sites. Storage zones. Determination of storage capacity and yield of a reservoir using mass curve.
Definition. Layout. Types of weirs and Barrages. Design of Impermeable floors – Bligh’s and Lane’s theories – Simple design problems. Khosla’s theory – Method of independent variables, Exit gradient (No design problem).
Definition. Forces acting on a Gravity dam. Modes of failures. Elementary and practical profile. Low and high gravity dams. Simple analysis problems, Principal stresses. Drainage galleries.
Introduction. Types of earthen dams. Failure of earthen dams. Preliminary design. Drainage arrangements. Phreatic line. Stability analysis under sudden draw down using Sweedish slip circle method.
Definition. Types of Spillways. Design Principles for an Ogee Spillway. Energy dissipaters: Types and introduction to IS Stilling basins (No design problems).