A U-tube manometer employs mercury having specific gravity of 13.5. one side of the manometer is open to the standard atmospheric pressure of 30 in-Hg and the difference in column heights is measured as 10 mm when exposed to air source at 25°C. Calculate the pressure of the air source in Pascals.

5. U-shaped manometer pressure gauge contains oil with a specific gravity of 0.95. A gas container is connected to one side of the pressure gauge and the other is in the atmosphere. The height of the oil connected to the atmosphere is 500mm higher than the height of the oil on the gas container side. What is the pressure of the gas in the container when the atmospheric pressure is 765mmHg? (However, gravity + 1 7 5 2 6 9.81m/s^ 2)

4. A manometer is used to measure the pressure in a tank. The fluid inside the manometer specific gravity is 0.85 and the absolute pressure within the tank is 100.6 kPa. Calculate the column height in mm. Take atmospheric pressure is 96 kPa.