Axial flow
Mixed flow
Centrifugal
None of these

## Fluid Mechanics Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will

Decrease
Increase
Data insufficient to predict relative pressure drop
Remain unchanged

## Fluid Mechanics In an incompressible flow of fluid, the fluid

Temperature remains constant
Compressibility is greater than zero
Density does not change with pressure & temperature
Is frictionless

## Fluid Mechanics Drag force acting on a body does not depend upon the

Density of the fluid
Projected area of the body
Velocity of the body
Density of the body

## Fluid Mechanics If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is

Zero in both the tubes
Greater in 1 mm dia tube
Same in both the tubes
Greater in 0.5 mm dia tube

## Fluid Mechanics The normal stress is the same in all directions at a point in a fluid, when the fluid is

Both A and B
Incompressible
Having no motion of one fluid layer relative to the other
Non-viscous