Allied & ICAR Exam Bank • ALLIED_1295 NAT • 2 Marks

Section 6: Agricultural Process Engineering

Mechanical Separation and Cleaning

Subtopic: Pneumatic Separator Static Pressure

Question Statement:

A U-tube water manometer connected to a grain cleaning cyclone duct indicates a static pressure differential $\Delta h = 50\text{ mm of water column}$. Taking $\rho_w = 1000\text{ kg/m}^3$ and $g = 9.81\text{ m/s}^2$, the pressure differential in Pascals (Pa) is:

Answer Key:

490.5

Step-by-Step Solution & Explanation

$\Delta P = \rho_w g \Delta h = 1000 \times 9.81 \times 0.050\text{ m} = 490.5\text{ Pa}$.
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