engineering recuitment UKPSC Polytechnic Lecturer Mock Test 2024 Fluid Mechanics Pressure Measurement Absolute Pressure
If a point is to be at the free surface of a liquid open to the atmosphere, where the pressure is the atmospheric pressure Patm, then the gauge pressure at a depth ‘h’ from the free surface becomes:
1
Pgauge = ρgh
2
Pgauge = Patm
3
Pgauge = Patm - ρgh
4
Pgauge = Patm + ρgh