V

Vijay Sangwan • 28.62K Points
Instructor II 

Q. Which of the following statement is correct ?

(A) The sub-surface sources are not affected by draught
(B) Infiltration galleries are most suitable for increasing the surface source supply, in dry season
(C) The rate at which water percolates into well under safe maximum critical depression head is called yield of well
(D) all of the above
Correct : Option (D)

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