GATE Civil Engineering (CE) 2019 Shift 2 Solved Paper

Question : 15 of 65

Marks: +1, -0

The command area of a canal grows only one crop, i.e., wheat. The base period of wheat is 120 days and its total water requirement,

∆

, is

40 {cm}

. If the canal discharge is

2 {m}^{3} {/} {s}

, the area, in hectares, rounded off to the nearest integer, which could be irrigated (neglecting all losses) is

Solution:

B = 120 days

∆=0.4 {m}

and

∆=8.64 {B} {/} {D}

⇒ {D}=2592

ha per

( {m}^{3} {/} {s})

∴ For

2 {m}^{3} {/} {sec}

water, area will be 5184 ha

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