Practice question

Why is driver fatigue a particularly catastrophic hazard in commercial heavy vehicle operations?

  1. Fatigued drivers cause the truck battery to drain faster
  2. The massive weight and momentum of a heavy commercial vehicle means a fatigued driver experiencing a micro-sleep can cause multi-vehicle fatal pileups without even braking
  3. Fatigue makes the truck tyres wear down on one side
  4. Fatigue increases engine oil pressure

Answer: B — The massive weight and momentum of a heavy commercial vehicle means a fatigued driver experiencing a micro-sleep can cause multi-vehicle fatal pileups without even braking

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