Different types of pressure

Fluid pressure -:  Pressure is transmitted with equal intensity in all directions and act normal to any plane is known as fluid pressure .

Difference in pressure between any two points at different level in a liquid is equal to = unit weight of liquid × difference in elevation. 

Gauge pressure -: It is equal to unit weight of the liquid multiplied by the height of the desired point above free surface . Gauge pressure represents pressure above atmospheric pressure. 

Bar pressure -: Gauge pressure in bar is generally obtained by dividing the gauge pressure in Pascal Z by 10^5 .

Pressure head-: Pressure head 'h' represent the height of a volumn of homogeneous fluid that will produce a given intensity of the pressure   ( h = p / ρg ) .
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