Is gauge pressure larger, smaller, or the same as absolute (true) pressure?

Question

Question

Answer 1

✔ Recommended Answer

Answer #1

A gauge pressure is smaller to the absolute pressure.

An absolute or true pressure is equal to the summation of atmospheric and guage pressure, i.e.:

P(absolute) = P(guage) + P(atmospheric).

And since the atmospheric pressure is always a positive quantity,

Thus, absolute pressure will always be greater than that of gauge pressure.

Answer 2

Similar Homework Help Questions

A pressure gauge measures steam to be 25 psig. What is the absolute pressure (in kPa)...

A pressure gauge measures steam to be 25 psig. What is the absolute pressure (in kPa) of the steam?
Suppose that your pressure gauge for determining the blood pressure of a patient measured absolute pressure...

Suppose that your pressure gauge for determining the blood pressure of a patient measured absolute pressure p instead of p 1.157 x105 mmHg
Tire gauges measure the difference between the absolute tire pressure and atmospheric pressure; such that gauge...

Tire gauges measure the difference between the absolute tire pressure and atmospheric pressure; such that gauge pressure [Pgauge] equals absolute tire pressure [Ptie] minus atmospheric pressure [Patmol; such that tire-Patmo Determine the following: Before a trip, a driver checked gauge pressure at 27.0 C and found it to be 29.3 psi. Eight hours later, it was 39.3 psi. If atmospheric pressure was 14.2 psi, at what temperature in ° C was the air inside the tire after 8 hours of...

True or false: If the absolute pressure at a certain depth in Lake Michigan is 3.5...

True or false: If the absolute pressure at a certain depth in Lake Michigan is 3.5 atmospheres, the gauge pressure at that depth is 4.5 atm.
1) Suppose that your pressure gauge for determining the blood pressure of a patient measured absolute...

1) Suppose that your pressure gauge for determining the blood pressure of a patient measured absolute pressure ? instead of gauge pressure. How would you write the normal value of systolic blood pressure, 120 mmHg, in such a case? 2)Estimate the total hydrostatic force ? on the Hoover Dam.
Convert an absolute pressure of 6.64×105 N/m2 to gauge pressure in lb/in2.

Convert an absolute pressure of 6.64×105 N/m2 to gauge pressure in lb/in2.

Convert an absolute pressure of 6.37×105 N/m2 to gauge pressure in lb/in2.

Convert an absolute pressure of 6.37×105 N/m2 to gauge pressure in lb/in2.
4)Express (- 4.7 psi) gauge an absolute pressure. Sketch the Pressure diagram and mark the 3...

4)Express (- 4.7 psi) gauge an absolute pressure. Sketch the Pressure diagram and mark the 3 pressures in this diagram. ( 5 Marks) 5)Identify 5 value of pressure on sea level. ( 5 Marks)
ÃI = A atmospheric pressure C gauge pressure N/m e. absolute pressure 23. When atmospheric pressure...

ÃI = A atmospheric pressure C gauge pressure N/m e. absolute pressure 23. When atmospheric pressure increases, what happens to the absolute pressure at the bottom of a pool? a. It does not change. b. It increases by a greater amount. c. It increases by a lesser amount. d. It increases by the same amount. e. It depends on the depth of the pool. 24. A 500-N weight sits on the small piston of a hydraulic machine. The small piston...

please solve quickly ?? Q.7. What will be (a) the gauge pressure (b) the absolute pressure...

please solve quickly ?? Q.7. What will be (a) the gauge pressure (b) the absolute pressure of sea water (Sg: 1.01) at a depth of H (m) below the free surface of sea water? Assume the atmospheric pressure to be 760 mm of Mercury (Hg). (2 Marks) NOTES: Student shall use the data given below in the table against their name. ID Name H (m) 24