WA theory test alcohol and drugs practice questions

Question 1

What is the general blood alcohol limit for a driver on a full Western Australian licence?

• Under 0.05Correct answer
• Under 0.08
• Under 0.02
• There is no limit for full licence holders

The general limit for full licence holders is a blood alcohol concentration below 0.05. Novice and some commercial drivers are held to a much lower limit again.

Rule cited: Drive Safe handbook (WA Department of Transport), Alcohol and driving

Question 2

Which of these will actually lower your blood alcohol concentration?

• TimeCorrect answer
• Strong coffee
• A cold shower
• A large meal after drinking

Your body removes alcohol at a fixed rate and nothing speeds that up. Coffee or a shower may make you feel more awake while you are still over the limit.

Rule cited: Drive Safe handbook (WA Department of Transport), Alcohol and driving

Question 3

How does alcohol affect your driving?

• It slows your reaction time and reduces your judgement of speed and distanceCorrect answer
• It sharpens your concentration in small amounts
• It affects only your eyesight and nothing else
• It has no effect until you are over the legal limit

Alcohol dulls reactions and makes risky choices feel reasonable. The effects begin well before you reach the legal limit.

Rule cited: Drive Safe handbook (WA Department of Transport), Alcohol and driving

Question 4

You have been prescribed medication and you need to drive. What should you do?

• Check the label and ask your doctor or pharmacist whether it affects drivingCorrect answer
• Drive as normal, because prescribed medicines are always safe
• Take a double dose so it wears off sooner
• Drive only at night when there is less traffic

Prescription and pharmacy medicines can cause drowsiness or blurred vision. Driving while impaired by any drug is an offence, whoever prescribed it.

Rule cited: Drive Safe handbook (WA Department of Transport), Drugs and driving

Question 5

A police officer asks you to take a breath test. What happens if you refuse?

• Refusing is an offence and carries serious penaltiesCorrect answer
• Nothing, because the test is voluntary
• You are simply asked to return another day
• You are fined only if you were actually drinking

Refusing a lawful breath or drug test is treated as a serious offence in its own right. There is no advantage in declining.

Rule cited: Drive Safe handbook (WA Department of Transport), Alcohol and driving