Allied & ICAR Exam Bank • ALLIED_2970 MCQ • 1 Mark

Section 3: Farm Power

Sources of Power

Subtopic: Sources of power on the farm – human, animal, mechanical, electrical, wind, solar and biomass

Question Statement:

In a fixed-dome Janata or Deenbandhu agricultural biogas plant, the active biological digestion of cattle dung occurs under:

Options:

  • (A) Anaerobic conditions with methanogenic bacteria converting organic matter into methane and carbon dioxide
  • (B) High-pressure aerobic aeration
  • (C) Direct solar pyrolysis
  • (D) Acid hydrolysis at boiling temperature

Answer Key:

A

Step-by-Step Solution & Explanation

Anaerobic digestion proceeds in three stages (hydrolysis, acidogenesis, methanogenesis) generating $55-65\%$ methane.
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