DTT Rules of the Road 1 — Questions and Answers
Question 1: What is the default speed limit on a national primary road (N road) outside a built-up area in Ireland?
- 100 km/h (Correct answer)
- 80 km/h
- 120 km/h
- 60 km/h
Correct answer: 100 km/h
The default speed limit on national primary roads (N roads) outside built-up areas in Ireland is 100 km/h, unless a lower limit is posted.
Question 2: What is the default speed limit on a regional or local road outside a built-up area?
- 80 km/h (Correct answer)
- 100 km/h
- 60 km/h
- 50 km/h
Correct answer: 80 km/h
Regional and local roads outside built-up areas have a default speed limit of 80 km/h. These are narrower roads with less consistent surfaces.
Question 3: What is the default speed limit on a motorway in Ireland?
- 120 km/h (Correct answer)
- 100 km/h
- 110 km/h
- 130 km/h
Correct answer: 120 km/h
The default speed limit on Irish motorways is 120 km/h for cars. This is the maximum allowed unless a lower limit is displayed on gantry signs or roadside signs.
Question 4: What is the default speed limit in a built-up area (town or city) in Ireland?
- 50 km/h (Correct answer)
- 60 km/h
- 40 km/h
- 30 km/h
Correct answer: 50 km/h
The default speed limit in built-up areas (towns, villages, cities) in Ireland is 50 km/h. This applies automatically unless a different limit is posted.
Question 5: When must you use dipped headlights during the day in Ireland?
- In poor visibility such as fog, heavy rain, or tunnels (Correct answer)
- Only between sunset and sunrise
- When travelling over 100 km/h
- Only when flashing to warn other drivers
Correct answer: In poor visibility such as fog, heavy rain, or tunnels
Dipped headlights must be used whenever visibility is seriously reduced — this includes fog, heavy rain, snow, and tunnels, regardless of the time of day.
Question 6: Which lane should you normally drive in on a multi-lane road in Ireland?
- The left-hand lane (Correct answer)
- The middle lane
- Any lane at your discretion
- The lane with least traffic
Correct answer: The left-hand lane
In Ireland, drivers must keep left on multi-lane roads and only use the right lane for overtaking. Staying in the middle or right lane unnecessarily is an offence.
DTT Rules of the Road 1
What is the default speed limit on a national primary road (N road) outside a built-up area in Ireland?