Allied & ICAR Exam Bank • ALLIED_0677 NAT • 2 Marks

Section 6: Agricultural Process Engineering

Grain Storage Structures and Silos

Subtopic: Grain Storage Structures and Silos

Question Statement:

In an airtight grain storage container, initial oxygen concentration is $21\%$. When insect respiration consumes $80\%$ of the oxygen, the residual oxygen percentage $21 \times (1 - 0.80)$ is:

Answer Key:

4.2

Step-by-Step Solution & Explanation

Residual $O_2 = 21 \times 0.20 = 4.2\%$.
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