Allied & ICAR Exam Bank • ALLIED_3017 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: Lubricants and their properties

Question Statement:

In multigrade tractor engine oils labeled SAE 15W-40 specification #2, the letter W designates:

Options:

  • (A) Winter rating (low-temperature pumpability and cranking viscosity)
  • (B) Weight of the oil
  • (C) Water resistance
  • (D) Wattage rating

Answer Key:

A

Step-by-Step Solution & Explanation

In SAE multigrade engine oil ratings (e.g. 15W-40), 'W' denotes winter performance at cold temperatures.
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