Two angulated tubes are connected by the manometer shown to the right. The press

Question

Two angulated tubes are connected by the manometer shown to the right. The pressure in tube B is 25 psi. The gage fluid is mercury having a specific gravity (SG) of 13.57. What is the pressure in tube A in units of (i) kPa and (ii) psi? (Pb = 25 psi)

Two angulated tubes are connected by the manometer shown to the right. The pressure in tube B is 25 psi. The gage fluid is mercury having a specific gravity (SG) of 13.57. What is the pressure in tube A in units of (i) kPa and (ii) psi? (Pb = 25 psi)

Explanation / Answer

pB - 1000*9.8*0.8 + 13570*9.8*0.6 = pA + 1000*9.8*1.1

pB = 25 psi = 172.37 kPa

So,

172370 - 7840 + 79791.6 = pA + 10780

pA = 233541.6 Pa

= 233.54 kPa

In psi.

pA = 33.872

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