Question

Which of the following statement is wrong about consumptive use efficiency?

(a) It is the ratio of normal consumptive use of water to the net amount of water depleted from the root zone

(b) It accounts for the loss of water by deep percolation

(c) Evaporation losses are considered

(d) The losses due to percolation and evaporation are not considered

This question was posed to me in exam.

This is a very interesting question from Water Requirements of Crops topic in division Water Requirements of Crops of Irrigation Engineering

Answer 1

Correct option is (d) The losses due to percolation and evaporation are not considered

Easiest explanation: It is the ratio of normal consumptive use of water to the net amount of water depleted from the root zone. It accounts for the loss of water by deep percolation and evaporation following irrigation.