The gage pressure in a liquid at a depth of 3 m is read to be 28 kPa. Determine the gage pressure in the same liquid at a depth of 12 m.

Step 1</p>

We have to calculate the gauge pressure in the liquid at a depth of 12 m.

Here the variation of the density of the liquid with depth is negligible

Step 2</p>

The gauge pressure at two different depths of liquid can be expressed as

Divide equation (2) by (1), we get