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Questions › Managing Risk › Question 85 of 99

When should a driver use their vehicle’s hazard warning lights?

  1. A.When double parking.
  2. B.When causing an unavoidable obstruction.
  3. C.When the brake lights are not working.
  4. D.When a following vehicle is too close.
Show answer & explanation

Correct answer: B. When causing an unavoidable obstruction.

Use the hazard warning lights to warn other road users of a danger ahead. For example, if a driver’s vehicle is causing an unavoidable obstruction such as being broken down, they should use the vehicle’s hazard warning lights to warn other road users of their presence.

This is an official-style question from the Managing Risk topic of the Ireland driver theory test (Cat. B). Practise all 804 questions free on iTest.ie — with timed mock exams, automatic mistake tracking and progress sync across devices.

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