Drink driving questions make up a significant portion of the theory test. Kildare’s 8,500 learner drivers need to know the blood alcohol limits (20mg for learners), penalties, and the myths around sobering up.
Kildare is Dublin’s largest commuter county with heavy M7 and M4 motorway traffic. The Naas dual carriageway, Newbridge Main Street, and Maynooth’s university traffic create varied driving conditions. The Curragh’s open plains have unique speed considerations, and horse-related road hazards (racing traffic, equestrian centres) are genuinely common. Theory test questions about dual carriageways and motorway joining procedures are highly relevant.
Drink driving questions require specific number knowledge — blood alcohol limits, penalty point values, and common myths about sobering up. They make up a significant portion of the theory test.
Key numbers: Legal BAC limit for learner/novice drivers: 20mg per 100ml of blood (lower than the 50mg limit for experienced drivers). Penalty: 3 penalty points and €200 fine for first offence (learners). Driving while impaired by drugs carries the same penalties. A learner with 7 penalty points loses their licence (vs 12 for full licence holders).
Study approach: Memorise the BAC limits for both learner and full licence holders. Learn that time is the only thing that reduces blood alcohol — coffee, fresh air, cold showers, and food do NOT speed up the process. The body processes roughly one standard drink per hour.
Common trap: Questions about “the morning after” — you can still be over the limit the morning after a night of drinking. Many people get these wrong because they assume sleep clears alcohol.
Q1.What is the blood alcohol limit for learner drivers?
Q2.Can you lose your licence on a first offence?
Q3.Does coffee help you sober up?
These are just a sample. L-Plate has all 100 drink driving questions with AI-powered explanations.
Learner/novice limit: 20mg per 100ml blood
Full licence limit: 50mg per 100ml blood
Only time reduces blood alcohol — not coffee or food
Refusing a breath test is an offence
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50mg per 100ml blood for full licence holders, 20mg for learner and novice drivers.
Refusing a breath test is a criminal offence with the same penalties as drink driving.
Kildare has one test centre in Naas with an approximate 11-week wait. Some Kildare residents also use Dublin or Portlaoise centres.
Naas is a busy commuter town with heavy M7 traffic. Practice dual carriageway sections and the town centre one-way system.
The RSA question bank contains 100 drink driving questions. On any given test, you’ll typically see 3–12 questions from this category depending on the random selection.
The national average pass rate for drink driving questions is 72%. Practising all 100 questions on L-Plate significantly improves your chances.