Question

Which of the following is not an advantage of the lining of the canal?

(a) Seepage control

(b) Prevention of water-logging

(c) Increase in channel capacity

(d) Increased maintenance costs

This question was posed to me in homework.

This is a very interesting question from Advantages of Lining topic in chapter Lining of Irrigation Canals and its Economics of Irrigation Engineering

Answer 1

Correct option is (d) Increased maintenance costs

Best explanation: Huge expenditure is spent on annual repair and maintenance of the unlined canal. The provision of lining reduces expenditure required for removal of silt, minor repairs like plugging of cracks, cuts, and removal of weeds and water plants.