Practice question

What is the danger of removing the radiator pressure cap from a truck's cooling system when the engine is hot?

  1. It will cause the engine battery to discharge
  2. High-pressure boiling coolant and steam can erupt and cause severe burns
  3. It will damage the fuel injection pump
  4. It will void the vehicle registration immediately

Answer: B — High-pressure boiling coolant and steam can erupt and cause severe burns

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