Allied & ICAR Exam Bank • ALLIED_1113 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: Engine Governors

Question Statement:

Tractor diesel engines are equipped with variable-speed centrifugal governors primarily to:

Options:

  • (A) Automatically adjust fuel rack position to maintain the operator-selected engine speed under varying soil loads
  • (B) Advance fuel injection timing at high speeds
  • (C) Increase maximum tractor road speed
  • (D) Cut off oil supply during engine idling

Answer Key:

A

Step-by-Step Solution & Explanation

Agricultural tractor governors are all-speed/variable-speed governors that regulate the injection pump control rack, sensing speed drops when implement load increases and metering more fuel to sustain speed.
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