1.

Name the type of irrigation, which is the oldest form of irrigation and has been in use for thousands of years.(a) Sub-surface irrigation(b) Surface irrigation(c) Canal irrigation(d) Rainwater irrigationThis question was addressed to me in exam.The query is from Earthwork and Estimation topic in division Irrigation Works, Culverts, Bridges and Wells of Civil Engineering Drawing

Answer»

The correct choice is (b) Surface irrigation

Explanation: In surface (furrow, flood, or LEVEL basin) irrigation systems, water moves across the surface of an agricultural lands, in an order to wet it and infiltrate into the soil. Surface irrigation can be subdivided into furrow, borderstrip or basin irrigation. It is OFTEN called flood irrigation when the irrigation RESULTS in flooding or near flooding of the cultivated LAND.



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