Allied & ICAR Exam Bank • ALLIED_0290 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: Three point hitches – free link and restrained link operations

Question Statement:

In the automatic draft control of a tractor 3-point hitch, when the implement hits hard soil and draft spikes:

Options:

  • (A) Top link compressive thrust increases, actuating the hydraulic spool valve to lift lower links slightly and shed draft
  • (B) Lower links unlock to free float
  • (C) Fuel injection cuts off
  • (D) Differential lock engages

Answer Key:

A

Step-by-Step Solution & Explanation

Increased top link compression pushes a heavy sensing spring, shifting the control valve to raise the implement and restore traction.
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