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Problem 3.20 [Difficulty: 2] Given: Two-fluid manometer as shown l 10.2 mm ⋅ = SG ct 1.595 = (From Table A.1, App. A) Find: Pressure difference Solution: We will apply the hydrostatics equation. Governing equations: dp dh ρ g ⋅ = (Hydrostatic Pressure - h is positive downwards) ρ SG ρ water ⋅ = (Definition of Specific Gravity) d z Assumptions: (1) Static liquid (2) Incompressible liquid Starting at point 1 and progressing to point 2 we have:
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