An inclined-tube manometer is being used as shown to measure the pressure in a p

Question

An inclined-tube manometer is being used as shown to measure the pressure in a

     pressurized tank. The tank is partially filled to a depth of 20 cm with a fluid of

      specific gravity = 0.78. If the SG of the manometric fluid is 3.5, what is the

An inclined-tube manometer is being used as shown to measure the pressure in a pressurized tank. The tank is partially filled to a depth of 20 cm with a fluid of specific gravity = 0.78. If the SG of the manometric fluid is 3.5, what is the gage pressure in the headspace (kPa) when h = 8 cm ?

Explanation / Answer

Hint: Let the gage pressure in headspace to be p. Find the pressure at the interface in terms of the height and specific weight of the gage fluid and equate that to the pressure in the tank at that horizontal level to find p. Solution: Gage pressure at the interface due to gage fluid = ggage (h sin 30 Hint: Let the gage pressure in headspace to be p. Find the pressure at the interface in terms of the height and specific weight

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