Correct answer: B. When overtaking a vehicle in the left-hand lane.
You must normally drive in the left-hand lane of a dual carriageway. You should not use the right-hand lane as a driving lane. You may use the right-hand lane when overtaking or when intending to turn right a short distance ahead.
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.
Practise the full question bank free →