Choose the correct mathematical relation of absolute pressure.

This question was previously asked in
SSC JE Mechanical 11 Oct 2023 Shift 2 Official Paper-I
View all SSC JE ME Papers >
  1. Pabs = Patm + Pguage
  2. Pabs = Patm + 2Pguage
  3. Pabs = Patm - Pguage
  4. Pabs = Patm/Pguage

Answer (Detailed Solution Below)

Option 1 : Pabs = Patm + Pguage
Free
Thermodynamics for All AE/JE ME Exams Mock Test
4.5 K Users
20 Questions 20 Marks 20 Mins

Detailed Solution

Download Solution PDF

Explanation:

Absolute pressure:

  • It is defined as the pressure which is measured with reference to absolute vaccum pressure.

Gauge pressure:

  • It is defined as the pressure which is measured with the help of pressure measuring instrument, in which the atmospheric pressure is taken as datum.

Vacuum pressure:

  • It is defined as the pressure below the atmospheric pressure.

The relationship between the above pressures is given as,

1) Absolute pressure = Atmospheric pressure + Gauge pressure

Pabs = Patm + Pgauge

2) Vacuum pressure  = Atmospheric pressure – Absolute pressure

Pvacuum = Patm - Pabs

Latest SSC JE ME Updates

Last updated on Jul 1, 2025

-> SSC JE ME Notification 2025 has been released on June 30. 

-> The SSC JE Mechanical engineering application form are activated from June 30 to July 21. 

-> SSC JE 2025 CBT 1 exam for Mechanical Engineering will be conducted from October 2 to 31. 

-> SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.

-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.

-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.

-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.

Get Free Access Now
Hot Links: teen patti 50 bonus teen patti gold new version 2024 teen patti online game