Question

Which type of lining is adopted when the channels have become stable and no danger of scouring is expected?

(a) Brick lining

(b) Single burnt clay tile lining

(c) In-situ cement concrete lining

(d) Flexible membrane lining in the bed and rigid lining on the sides

I have been asked this question in final exam.

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

Answer 1

Right answer is (d) Flexible membrane lining in the bed and rigid lining on the sides

For explanation: The burnt clay tile lining is to be adopted at places where aggregates for the manufacture of concrete are not available economically. The brick lining is used where seepage considerations are important. In-situ cement concrete lining is provided when the canal has a bed width greater than 8 m.