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Speed and Stopping Distances Flashcards

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

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  1. What is the speed limit on a regional road in Ireland when no other limit is displayed?

    Answer: 80 km/h

    The default speed limit on regional roads (R roads) in Ireland is 80 km/h when no other limit is posted.

  2. What is the speed limit for a learner driver (driving with an 'L' plate) on a motorway in Ireland?

    Answer: Learner drivers are not permitted on motorways

    Learner drivers are not permitted to drive on motorways in Ireland under any circumstances.

  3. How does carrying a heavy load affect a vehicle's stopping distance?

    Answer: It increases stopping distance

    A heavier vehicle has more momentum, which increases the braking distance needed to stop safely.

  4. What is the safe following distance rule often used in Ireland to maintain adequate stopping distance?

    Answer: The two-second rule

    The two-second rule means leaving at least a two-second gap between your vehicle and the one ahead, giving you time to react and brake.

  5. How does driver fatigue affect stopping distance?

    Answer: It increases stopping distance by lengthening reaction time

    Fatigue slows a driver's reaction time, increasing the reaction distance component of overall stopping distance.

  6. On an icy road, stopping distances can increase by how much compared to a dry road?

    Answer: Up to ten times

    On ice, stopping distances can increase by up to ten times compared to a dry road due to severely reduced tyre grip.

  7. What is the speed limit for cars on a local road in Ireland where no signs are posted?

    Answer: 80 km/h

    The default speed limit on local roads (L roads) in Ireland is 80 km/h when no other limit is displayed.

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Sources & references

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  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