Problem 140P

A system is equipped with two pressure gages and a manometer, as shown in Fig. P3–148. For Δh = 12 cm, determine the pressure difference

Solution to 140P

Step 1

We need to find the pressure difference between two pressure gages for a differential height of Δh=12 cm as given in the question.

Given data:

Specific gravity of manometer fluid=2.15

Specific gravity of oil=0.87

Differential height in manometer=0.12m

Standard density of water=1000kg/m3

Equations used:

Specific gravity of a fluid

is the density of fluid.

is the density of water(standard liquid)

Pressure

g=acceleration due to gravity

h=height of liquid