Practice question

What is the danger of opening the engine radiator cap (bouchon de radiateur ou vase d'expansion) while the engine is hot?

  1. Pressurized boiling coolant and steam will erupt forcefully, causing severe second- and third-degree facial and bodily burns
  2. The vehicle's battery will discharge immediately
  3. The radiator cap will become permanently welded to the engine
  4. Air will enter the fuel injection system

Answer: A — Pressurized boiling coolant and steam will erupt forcefully, causing severe second- and third-degree facial and bodily burns

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