What do you understand by the term 'Absolute Pressure'?

  1. It is the atmospheric pressure at mean sea level
  2. It is the atmospheric pressure expressed in kg/ cm2
  3. It is the pressure equal to the algebraic sum of atmospheric and gauge pressures
  4. It is the pressure as seen on the gauge of a pressure measuring instrument

Answer (Detailed Solution Below)

Option 3 : It is the pressure equal to the algebraic sum of atmospheric and gauge pressures
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Agniveer Army GD 22 April 2024 (Shift 1) Memory-Based Paper
50 Qs. 100 Marks 60 Mins

Detailed Solution

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Explanation:

  • The pressure is measured relative to atmospheric pressure, pressure above atmospheric pressure is positive gauge pressure and pressure below atmospheric pressure is negative gauge pressure also known as vacuum pressure.
  •  Absolute pressure is the sum of gauge pressure and atmospheric pressure.

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