Question Bank • QB_APE_EXP_065 NAT • 2 Marks

Section 6: Agricultural Process Engineering

Storage Systems

Subtopic: Godowns, bins and grain silos

Question Statement:

A cylindrical steel grain silo of diameter $4.0\text{ m}$ stores grain with bulk density $800\text{ kg/m}^3$. The hydraulic radius of the circular bin is $R = D/4$. Calculate the hydraulic radius of the silo in $\text{meters}$.

Answer Key:

1

Step-by-Step Solution & Explanation

Hydraulic radius $R$ is cross-sectional area divided by perimeter: $R = \frac{\frac{\pi}{4} D^2}{\pi D} = \frac{D}{4} = \frac{4.0}{4} = 1.0\text{ m}$
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