Math Problem Statement
The inverted U-tube manometer shown below is used for measuring pressure differences in liquids. The manometer contains two fluids, with one fluid having a specific gravity of 13 (SG1 = 13). Given that PA - PD = 32 kPa, determine the specific gravity of the second fluid. Assume the atmospheric pressure is 100 kPa, acceleration due to gravity g=9.8 m/s2, and the density of water is 1000 kg/m3. (35 marks: 10 marks for the correct answer and 25 marks for showing the correct working)
Solution
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Math Problem Analysis
Mathematical Concepts
Fluid Mechanics
Hydrostatics
Pressure Measurement
Formulas
Specific Gravity (SG) formula: SG = ρ / ρ_water
Hydrostatic pressure equation: P_A - P_D = ρ1 * g * h1 - ρ2 * g * h2
Density relation: ρ = SG * ρ_water
Theorems
Pascal's Law
Hydrostatic Pressure Principle
Suitable Grade Level
Undergraduate - Engineering or Physics
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