railway RRB JE (CBT I + CBT II) Mock Test 2024 Fluid Mechanics Pressure Measurement Absolute Pressure
Which of the following is true regarding absolute pressure?
(Where, Pabs is absolute pressure, Patm is atmospheric pressure, and Pgauge is gauge pressure)
1
Pabs = Patm/Pgauge
2
Pabs = Patm - Pgauge
3
Pabs = Pgauge × Patm
4
Pabs = Patm + Pgauge