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What is the value of Barlow’s runoff percentage...

What is the value of Barlow’s runoff percentage (K) for hills and plains with little cultivation?

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

What is the value of Barlow’s runoff percentage (K) for hills and plains with little cultivation?

(a) 10

(b) 15

(c) 20

(d) 25

This question was posed to me during an online interview.

My question is from Reservoir Capacity Determination Using Hydrograph and Mass-curve topic in chapter Reservoirs and Dam Reservoirs Planning of Irrigation Engineering

irrigation engineering
reservoirs and dam reservoirs planning
reservoir capacity determination using hydrograph and mass-curve

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1 Answer

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

Correct option is (d) 25

Easiest explanation: For Flat, cultivated, and adsorbent soils, the runoff percentage is taken as 10 and for flat, partly cultivated stiff soils, it is taken as 15. For average catchment, the value is taken as 20 and for hills and plains with little cultivation, the value of the runoff percentage is 25.

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