## Hydraulics & Fluid Mechanics When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies

as the square of the radial distance
inversely as the square of the radial distance

## Hydraulics & Fluid Mechanics Non uniform flow occurs when

the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
velocity, depth, pressure, etc. change from point to point in the fluid flow
the direction and magnitude of the velocity at all points are identical
the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time

specific gravity
specific speed
specific volume
specific weight

## Hydraulics & Fluid Mechanics Metacentric height is given as the distance between

the center of gravity of the body and the center of pressure
center of buoyancy and metacentre
the center of gravity of the body andthe meta center
the center of gravity of the body and the center of buoyancy

## Hydraulics & Fluid Mechanics Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is

(i) and (iii)
(i) and (ii)
(i), (ii) and (iii)
(ii) and (iii)

## Hydraulics & Fluid Mechanics If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is

160
200
less than 1
between 1 and 100