Hydraulics and Fluid Mechanics in ME
A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is

cannot be predicted from the given data
zero
one-half its value when cylinder was full
one-fourth its value when cylinder was full

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Hydraulics and Fluid Mechanics in ME
The discharge through a wholly drowned orifice is given by (where H1 = Height of water (on the upstream side) above the top of the orifice, H2 = Height of water (on the downstream side) above the bottom of the orifice, and H = Difference between two water levels on either side of the orifice)

Q = Cd × b (H2 - H1) × √(2gh)
Q = Cd × bH2 × √(2gh)
Q = Cd × bH₁ × √(2gh)
Q = Cd × bH × √(2gh)

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