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Questions › Safe and Responsible Driving › Question 393 of 420

When should rear fog lights be used?

  1. A.When the vehicle behind is too close.
  2. B.In dense fog or falling snow.
  3. C.Only in light fog.
  4. D.Always when driving at night in an unlit area.
Show answer & explanation

Correct answer: B. In dense fog or falling snow.

A driver must only use rear fog lights in dense fog or falling snow. Using fog lights in normal road and weather conditions can dazzle or blind following motorists. Also, fog lights may make brake lights harder to see.

This is an official-style question from the Safe and Responsible Driving topic of the Ireland driver theory test (Cat. B). Practise all 807 questions free on iTest.ie — with timed mock exams, automatic mistake tracking and progress sync across devices.

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