Practice question

Why is tyre pressure check critically important before starting a commercial trip in a heavy vehicle?

  1. Under-inflated heavy truck tyres overheat rapidly under multi-tonne loads, causing sidewall casing delamination, blowouts, and tyre fires
  2. Over-inflated tyres make the engine cooling fan stop spinning
  3. Tyre pressure controls the FM radio antenna signal reception
  4. Tyre pressure regulates the vehicle's alternator voltage output

Answer: A — Under-inflated heavy truck tyres overheat rapidly under multi-tonne loads, causing sidewall casing delamination, blowouts, and tyre fires

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