If the pipe diameter and  fluid velocity change within a system ( neglecting pressure losses), the flow also changes.

Which of the following flow meters is bidirectional ( Forward and reverse) ?

The function of a magnetic flow meter is based on the principle of operation of an electric generator which states that: 

A mass (solid) flow meter, indicates the mass flow by knowing:

  Turbine flow meters consist of:                                                                                                                             

The pressure drop across a flow nozzle design is:

The most common way to drop the pressure for measuring flow is  to use:

In a vortex flow meter a swirl blade restriction is placed inside a pipe to :

On which of the following flow meter a reed switch is used to indicate the number of displaced volumes of a liquid :