Allied & ICAR Exam Bank • ALLIED_0322 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: Traction theory

Question Statement:

The optimum wheel slip range for 2WD agricultural tractors in firm soil to maximize fuel economy and tractive efficiency is:

Options:

  • (A) $10 - 15\%$
  • (B) $30 - 45\%$
  • (C) $0 - 2\%$
  • (D) $60 - 75\%$

Answer Key:

A

Step-by-Step Solution & Explanation

Max tractive efficiency occurs around $10-15\%$ slip in 2WD and $8-12\%$ in 4WD; lower slip wastes motion, higher slip wastes power spinning soil.
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