Answered: 4. A vacuum gauge reads 8 in. Hg when…

4. A vacuum gauge reads 8 in. Hg when the atmospheric pressure is 29.0 in. Hg. Ifſ the specific gravity of mercury is 13.6, compute the absolute pressure in psi. Ans:10.3 psia

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter1: Heat, Temperature, And Pressure

Section: Chapter Questions

Problem 14RQ: Atmospheric pressure at sea level under standard conditions is ______inches of mercury (Hg) or_____...

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4. A vacuum gauge reads 8 in. Hg when the atmospheric pressure is 29.0 in. Hg. Ifſthe specific
gravity of mercury is 13.6, compute the absolute pressure in psi. Ans:10.3 psia
5. In a U-tube manometer, one end is closed, trapping atmospheric air in the column. The
other end is connected to a pressure supply of 5 psig. If the level of mercury in the closed
end is 2 in. higher than that in the open end, what is the pressure of the trapped air?
Ans:18.72psia

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