Hydraulics and Fluid Mechanics in ME
If a vessel containing liquid moves downward with a constant acceleration equal to ‘g’ then

the pressure throughout the liquid mass is atmospheric
None of these
the pressure in the liquid mass is greater than hydrostatic pressure
there will be vacuum in the liquid

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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

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

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Hydraulics and Fluid Mechanics in ME
Coefficient of contraction is the ratio of

Area of jet at vena-contracta to the area of orifice
Loss of head in the orifice to the head of water available at the exit of the orifice
Loss of head in the orifice to the head of water available at the exit of the orifice
Actual velocity of jet at vena contracta to the theoretical velocity

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