Allied & ICAR Exam Bank • ALLIED_3004 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: Fuels and combustion

Question Statement:

The ignition quality and knock resistance of agricultural diesel fuel variant #1 is rated on the standard scale of:

Options:

  • (A) Cetane number (measuring ignition delay period)
  • (B) Octane number
  • (C) Viscosity index
  • (D) API gravity

Answer Key:

A

Step-by-Step Solution & Explanation

Cetane number measures self-ignition readiness: higher cetane indicates shorter ignition delay and smoother diesel combustion.
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