Question Bank • QB_SUB_FP_LUB_003 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: Lubricants and their properties

Question Statement:

The temperature at which an engine lubricating oil ceases to flow when cooled under standardized laboratory test conditions is defined as the:

Options:

  • (A) Pour point
  • (B) Flash point
  • (C) Fire point
  • (D) Cloud point

Answer Key:

A

Step-by-Step Solution & Explanation

Pour point is the lowest temperature at which the oil remains pourable or fluid. Flash point is when combustible vapors ignite momentarily.
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