Allied & ICAR Exam Bank • ALLIED_2997 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: Engine components

Question Statement:

In tractor diesel engine components, the primary engineering function of piston compression rings in set #4 is to:

Options:

  • (A) Seal the high combustion gas pressure from blowing into the crankcase
  • (B) Drive the water pump
  • (C) Filter the fuel line
  • (D) Spray lubricating oil onto the radiator

Answer Key:

A

Step-by-Step Solution & Explanation

Compression rings maintain gas-tight seal in the cylinder bore while conducting heat from piston crown to cooled cylinder liner.
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