Drink driving questions make up a significant portion of the theory test. Donegal’s 5,800 learner drivers need to know the blood alcohol limits (20mg for learners), penalties, and the myths around sobering up.
Donegal has some of Ireland’s most varied and challenging roads. Letterkenny is a busy regional town with complex roundabout systems. The Wild Atlantic Way through Donegal passes some of Europe’s highest sea cliffs. Mountain roads through the Bluestack and Derryveagh mountains are steep and winding. Being geographically isolated from Dublin, Donegal’s roads carry significant freight traffic. Cross-border driving to Derry is common, requiring awareness of jurisdiction changes.
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.
Donegal has two test centres: Letterkenny (6 weeks) and Donegal Town (6 weeks). Both have relatively short waits.
Both have similar wait times of about 6 weeks. Choose whichever is closer to you geographically.
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.