Determining depth of the liquid in a tank by determining the surface level of liquid and pressure on the gage.
One means of determining surface level of liquid in a tank is by discharging a small amount of air through a small tube, the end of which is submerged in the tank, and reading the pressure on the gage that is tapped into the tube. Then the level of the liquid surface in the tank can be calculated. If the pressure on the gage is 20 kPa, what is the depth d of liquid in the tank?
