Allied & ICAR Exam Bank • ALLIED_1117 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: Tractor Differential

Question Statement:

When a tractor turns a sharp corner in the field, the differential mechanism ensures that:

Options:

  • (A) The outer drive wheel turns faster than the inner wheel while delivering torque to both wheels
  • (B) Both drive wheels lock and turn at exactly equal speed
  • (C) All engine power is redirected exclusively to front steer wheels
  • (D) The propeller shaft rotational speed is doubled

Answer Key:

A

Step-by-Step Solution & Explanation

The differential allows the outer wheel to cover a longer turning arc by rotating faster ($N_{crown} = \frac{N_{left} + N_{right}}{2}$) while splitting torque evenly between both drive axles.
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