gas law
Charle’s law
Pascal’s law
Boyle’s law

## Hydraulics & Fluid Mechanics Two pipe systems are said to be equivalent when

head loss and discharge are same in two systems
friction factor and length are same in two systems
length and diameter are same in two systems
length of pipe and discharge are same in two systems

rotameter
pitot tube
Venturimeter
Orifice plate

## Hydraulics & Fluid Mechanics Steady flow occurs when

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
the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
the magnitude and direction of the velocity do not change from point to point in the fluid

## Hydraulics & Fluid Mechanics The shear stress distribution for a fluid flowing in between the parallel plates, both at rest, is

constant over the cross section
zero at plates and increases linearly to midpoint
zero at the mid plane and varies linearly with distance from mid plane
parabolic distribution across the section

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

the center of gravity of the body and the center of buoyancy
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 pressure