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The type of canal alignment which involves...

The type of canal alignment which involves maximum CD works is a ______________

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asked Sep 16, 2023 in Irrigation Engineering by Carter (75.2k points)

The type of canal alignment which involves maximum CD works is a ______________

(a) ridge canal

(b) contour canal

(c) side slope canal

(d) both ridge and contour canal

The question was asked during an online exam.

My question is taken from Cross Drainage topic in chapter Cross Drainage Work of Irrigation Engineering

irrigation engineering
cross drainage work
cross drainage

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answered Sep 25, 2023 by Greg (106k points)

Right option is (b) contour canal

The best I can explain: A watershed line or ridgeline crosses the minimum number of drains and contour canal crosses the maximum number of drains. When a canal is aligned as contour canal it requires more CD works. It is a costly construction and should be avoided as far as possible.

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