In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta.
Options
A. less than
B. more than
Correct Answer
less than
Hydraulics and Fluid Mechanics problems
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1. The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)
2. The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly enlarged to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden enlargement is
Cd x b
