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RRB Junior Engineer / DMS / CMA 2019 · Question 3468 of 3719

When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called-

  1. APositive gauge pressureCorrect
  2. BBarometric pressure
  3. CAbsolute pressure
  4. DNegative gauge pressure

Answer: A. Positive gauge pressure

Explanation

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. i.e. P A- P atm → positive gauge pressure P atm - P B→ negative gauge pressure Absolute pressure is sum of gauge pressure and atmospheric pressure.

Source: RRB JE 2019 (CBT 2) (ME) Previous Year Paper (31 Aug 2019) — prepp.in solved-paper PDF (answer key with explanations) · reliable-secondary

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