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

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

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
Coefficient of velocity is defined as the ratio of

Actual velocity of jet at vena contracta to the theoretical velocity
Area of jet at vena contracta to the area of orifice
None of these
Actual discharge through an orifice to the theoretical discharge

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
When a body is placed over a liquid, it will float if

Gravitational force is less than the up-thrust of the liquid
Gravitational force is more than the up-thrust of the liquid
None of these
Gravitational force is equal to the up-thrust of the liquid

ANSWER DOWNLOAD EXAMIANS APP