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By doubling the diameter of a tubewell from 10 cm to 20 cm, the yield of the well will increase by:
Question

By doubling the diameter of a tubewell from 10 cm to 20 cm, the yield of the well will increase by:

A.

10%

B.

20%

C.

30%

D.

40%

Correct option is D

Doubling the well diameter significantly reduces water velocity inside the well, decreasing friction losses and increasing well yield by approximately 40%.

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