Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant speed and capacity, the pressure and power vary

Directly as the air or gas density
Inversely as density
As square of density
Inversely as square root of density

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP