Question: Solve and show your work. 4. (25 pts) A closed tank contains compressed air and oil (SGo; =0.90) as shown in the Figure. A U-tube

Solve and show your work. 4. (25 pts) A closed tank

Solve and show your work. 4. (25 pts) A closed tank contains compressed air and oil (SGo; =0.90) as shown in the Figure. A U-tube manometer using mercury (SGH =13.6 ) is connected to the tank as shown. The column heights are: h, = 34 inches, h2 = 10 inches, h3 = 7 inches. Points (1) and (2) are at equal levels. Determine for 68F: (a) the absolute pressure of open atmosphere (in lbf/ft2) given that the absolute pressure of the compressed air is 2,700 lbf/ft2, (b) the gage pressure (pressure relative to the open atmosphere) of the Pressure compressed air in psi, gage (c) the density (slugs/ft3) of the compressed air. h1 Open h2 h3 (2) (1) Hg

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