Allied & ICAR Exam Bank • ALLIED_2976 MCQ • 1 Mark

Section 3: Farm Power

Sources of Power

Subtopic: Bio-fuels and their use in farm mechanization

Question Statement:

Producer gas generated by downdraft biomass gasification of crop residues contains combustible gases consisting primarily of:

Options:

  • (A) Carbon monoxide (CO), Hydrogen ($\text{H}_2$), and small amounts of Methane ($\text{CH}_4$)
  • (B) Pure oxygen and nitrogen
  • (C) Carbon dioxide and water vapor only
  • (D) Pure propane

Answer Key:

A

Step-by-Step Solution & Explanation

Producer gas typically contains $18-22\%\text{ CO}, 12-18\%\,\text{H}_2, 2-4\%\,\text{CH}_4$, with the remainder being inert $\text{N}_2$ and $\text{CO}_2$.
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