Question

Which of the followings statements related to pressure are correct ?
(A) Gage pressure = Absolute pressure \(-\) Atmospheric pressure
(B) Absolute pressure = Gage pressure \(-\) Atmospheric pressure
(C) Absolute pressure = Atmospheric pressure \(+\) Vacuum pressure
(D) Gage pressure = Atmospheric pressure \(+\) Vacuum pressure
Choose the correct answer from the options given below:

• A. (A) only.
• B. (A), (B) and (C) only.
• C. (A) and (C) only.
• D. (B), (C) and (D) only.

Hint:

Remember the reference datum:
- If you measure from absolute zero \(\rightarrow\) Absolute Pressure.
- If you measure from atmospheric pressure \(\rightarrow\) Gage Pressure (above atmospheric) or Vacuum Pressure (below atmospheric).
- Formula: \(P_{\text{abs}} = P_{\text{atm}} + P_{\text{gauge}}\).

Answer 1

The Correct Option is A