Fluid Mechanics Math Problem and Solution || Pressure Measurement Part  

Problem:  

The pressure difference between an oil pipe and a water pipe is measured by a double-fluid manometer, as shown in the figure. For the given configuration and specific gravities, determine the pressure difference ΔP = PB-PA. Glycerin SG 1.26 Water SG-10 Oil SG-0.88 60 cm 10 cm 15 cm 20 cm Mercury SG 13.5

Fig: © Chegg Study

Solution: 

The Specific gravities are  given to be 13.5 for Mercury, 1.26 for Glycerine, 0.88 for oil.
We take the standard density of water to be 1000 kg/m^3