The intake opening is generally covered by a screen to prevent entry of debris etc. and its level is kept
(A) At the level of water of the source
(B) At the bottom of water of the source
(C) At about 2.5 m above the bottom
(D) None of these
(A) At the level of water of the source
(B) At the bottom of water of the source
(C) At about 2.5 m above the bottom
(D) None of these