Determination of the specific gravity of liquids using a manometer

Asked by admin @ 28/10/2021 in Engineering viewed by 293 People

Oil with a specific gravity of 0.72 is used as the indicating fluid in a manometer. If the differential pressure across the ends of the manometer is 6kPa, what will be the difference in oil levels in the manometer?

Answered by admin @ 28/10/2021

Answer:

the difference in oil levels is 0.850 m

Explanation:

given data

specific gravity ρ = 0.72

pressure across P = 6 kPa = 6000 Pa

solution

we get here difference in oil levels h is

P = ρ × g × h .................1

here ρ = 0.72 × 1000 = 720 kg/m³

and g is 9.8

put here value in equation 1 and we get h

6000 = 720 × 9.8 × h

h = $\frac{6000}{720\times 9.8}$

h = 0.850 m

so the difference in oil levels is 0.850 m

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