engineering recuitment BHEL Engineer Trainee Mock Test 2025 Irrigation Engineering Water Requirement of Crops
For a irrigated field having : Field capacity = 30%, Permanent wilting point = 10%, Permissible depletion of available moisture = 50%, Dry weight of soil = 14.70 kN / m3, Unit weight of water = 9.8 kN / m3 and Effective rainfall = 30 mm, what is the net irrigation requirement per meter depth of soil?
1
300 mm
2
150 mm
3
120 mm
4
90 mm