Question

Safety ladders are provided in large irrigation canals to ______________

(a) enable the fish to pass from one place to another

(b) enable the cattle to cross the canal

(c) enable the swimmers to get out of the canal

(d) provide safe exit to avoid accidental drowning

The question was posed to me in unit test.

The query is from Lining of Canals in Expansive Soils in division Lining of Irrigation Canals and its Economics of Irrigation Engineering

Answer 1

Correct choice is (d) provide safe exit to avoid accidental drowning

The explanation is: Safety ladders are generally provided in large canals on both the banks which consists of a number of ladder rungs at different elevations along the canal length. In case any person or cattle that may be swept away with the flowing water may catch hold one such ladder rung and can climb the higher rungs to get out of the canal to prevent themselves from drowning.