In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the
atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
(A) Less than
(B) More than
(C) Equal to
(D) None of these
atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
(A) Less than
(B) More than
(C) Equal to
(D) None of these