Practice question

The primary purpose of the motorcycle engine lubrication system is to:

  1. Reduce friction, remove heat from bearings and parts, and help clean and seal internal surfaces
  2. Increase octane rating of petrol in the tank
  3. Generate the ignition high-tension voltage
  4. Steer the rear wheel

Answer: A — Reduce friction, remove heat from bearings and parts, and help clean and seal internal surfaces

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