This document discusses using a manometer to measure fluid pressure. A manometer uses the difference in height between two columns of liquid, usually mercury, to measure pressure at a point. One column is open to atmospheric pressure while the other is open to the pressure being measured. The difference in height between the liquid columns indicates the pressure difference according to a conversion factor.

1. Manometers Used for Fluid Pressure Measurements:

4. P

5. Mercury
Right limb / Column
Left limb / Column

7. Pressure at point B

16. 1 Kg.f = 9.81 N
To Find: Difference in mercury level (h)