Allied & ICAR Exam Bank • ALLIED_0281 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: I.C. engine systems – fuel, cooling, lubrication, ignition, electrical, intake and exhaust

Question Statement:

The function of glow plugs in an indirect-injection (IDI) tractor diesel engine is to:

Options:

  • (A) Preheat air in the pre-combustion chamber to facilitate cold-weather starting
  • (B) Ignite fuel spark
  • (C) Charge the starter battery
  • (D) Illuminate the dashboard

Answer Key:

A

Step-by-Step Solution & Explanation

Glow plugs are electrical resistance heating elements that raise pre-combustion swirl chamber temperature during cold cranking.
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