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Rules of Road Flashcards

6 cards from real DTT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Rules of Road flashcards as text
  1. What is the default speed limit in built-up areas in Ireland?

    Answer: 50 km/h

    Under the Road Traffic Act, the default speed limit in built-up areas (towns and cities) in Ireland is 50 km/h unless otherwise indicated by signage. Special speed limits of 30 km/h may apply near schools.

  2. When approaching a roundabout in Ireland, which direction should you travel?

    Answer: Clockwise (keeping the centre island to your right)

    In Ireland, traffic moves clockwise around roundabouts, keeping the central island to your right. You must yield to traffic already on the roundabout, approaching from your right.

  3. What is the legal requirement regarding seatbelts in Ireland?

    Answer: All occupants must wear seatbelts where fitted, and the driver is responsible for passengers under 17

    Under Irish law, all occupants of a vehicle must wear seatbelts where they are fitted. The driver is legally responsible for ensuring passengers under 17 are appropriately restrained. Failure to wear a seatbelt carries penalty points and a fine.

  4. When can you legally use a mobile phone while driving in Ireland?

    Answer: Only when using a hands-free device that does not require holding the phone

    Under Irish law, it is an offence to hold a mobile phone while driving. Hands-free devices are permitted, though drivers should still exercise caution. The law applies whenever the vehicle is in traffic, including while stopped at lights.

  5. What are the rules regarding overtaking on the left in Ireland?

    Answer: It is generally prohibited except in specific circumstances such as when the vehicle ahead is turning right or in slow-moving lanes of traffic

    Overtaking on the left (undertaking) is generally prohibited in Ireland. Exceptions include when the vehicle ahead is turning right, in slow-moving queues where the left lane is moving faster, and when directed by a Garda.

  6. What is the minimum legal tread depth for car tyres in Ireland?

    Answer: 1.6 mm across the central three-quarters of the tread width

    The minimum legal tread depth for car tyres in Ireland is 1.6 mm across the central three-quarters of the breadth of the tyre and around the entire circumference. Driving with tyres below this limit is an offence.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. theorytest.ie — Eligibility, exam format, passing score, score validity, fees, time limit, exam information · verified Oct 2026
  2. rsa.ie — Test delivery, score release · verified Oct 2026