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Which of the following method of lifting water is...

Which of the following method of lifting water is very suitable when the depth of well is from 12 to 20 meters?

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asked Aug 22, 2023 in Irrigation Engineering by Carter (75.2k points)

Which of the following method of lifting water is very suitable when the depth of well is from 12 to 20 meters?

(a) Denkli

(b) Churus

(c) Persian wheel

(d) Windmill

The question was posed to me during a job interview.

My query is from Open Well and Dug Well topic in chapter Ground Water for Irrigation through Wells and Tubewells of Irrigation Engineering

irrigation engineering
ground water for irrigation through wells and tubewells
open well and dug well

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1 Answer

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

Correct choice is (c) Persian wheel

Easy explanation: Denkli is generally provided on the unlined wells which are supposed to irrigate only small fields. Churus is suitable for lined wells and can be conveniently used deep wells up to a maximum depth of 30 m. Persian wheel (also known as Rahat in some parts of India) is suitable when the depth of well is 12-30 m. The windmill is not very reliable.

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