GATE AG 2012 • Q14 MCQ • 1 Mark

Section 3: Farm Power

Sources of Power

Subtopic: Bio-fuels and their use in farm mechanization

Question Statement:

The constituent of producer gas which occupies the highest percentage by volume and helps in increasing its overall calorific value is:

Options:

  • (A) CO
  • (B) CO2
  • (C) H2
  • (D) CH4

Official Answer Key:

A

Step-by-Step Solution & Explanation

Producer gas (from biomass gasification) is typically ~ N2 50%, CO 20–22%, H2 15–18%, CO2 10–12%, CH4 2–3%. Among the combustible constituents, CO has the highest volumetric share and contributes most to the gas's calorific value. Answer: A.

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