DTT Alcohol, Drugs, and Safe Driving

Question 1

What is the legal blood alcohol concentration (BAC) limit for experienced drivers in Ireland?

Accepted Answer

50 mg of alcohol per 100 ml of blood

Answer

80 mg per 100 ml

Answer

35 mg per 100 ml

Answer

20 mg per 100 ml

Question 2

What is the BAC limit for learner, novice, and professional drivers in Ireland?

Accepted Answer

20 mg per 100 ml of blood

Answer

50 mg per 100 ml

Answer

35 mg per 100 ml

Answer

0 mg — zero tolerance

Question 3

If a Garda suspects a driver of drink driving, what test can they require at the roadside?

Accepted Answer

A preliminary breath test using a breathalyser

Answer

A blood test at the roadside

Answer

A urine test at the Garda station

Answer

A coordination test such as walking a straight line

Question 4

How does alcohol affect driving ability?

Accepted Answer

It impairs judgement, slows reaction time, and reduces coordination

Answer

It increases confidence and reaction speed in small amounts

Answer

It only affects driving at levels above the legal limit

Answer

Its effects are offset by coffee or water before driving

Question 5

Can prescription medications affect your fitness to drive?

Accepted Answer

Yes — some medications cause drowsiness, blurred vision, or impaired judgement

Answer

No — prescribed drugs are always safe to use while driving

Answer

Only over-the-counter medications pose a risk

Answer

Only if taken in higher doses than prescribed

Question 6

What is the consequence of refusing a breath, blood, or urine test when required by Gardaí?

Accepted Answer

Treated as if you had exceeded the legal alcohol limit — same penalties apply

Answer

A verbal warning only

Answer

A minor fixed charge notice

Answer

You must take the test within 24 hours at a hospital