## Fluid Mechanics The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the

Inverse of fluid viscosity
Square of particle size
Difference in the densities of the particle & fluid
All of these

Kennison nozzle
Weir
V-notch
Pitot tube

## 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
Data insufficient to predict relative pressure drop
Remain unchanged
Increase

## Fluid Mechanics Velocity at a certain point in case of streamline flow is

Both A & B
Constant
Neither A nor B
Independent of time

## Fluid Mechanics In magnetic flow meters, voltage generation is

Both A and B
Neither A nor B
Proportional to the fluid velocity
Due to the motion of conducting fluid through an externally generated uniform field

## Fluid Mechanics Delivery of insufficient quantity of liquid by a pump may be caused by

Too high a lift
Air leak in the inlet
All of these
Low rpm