DKTKey points on drugs and driving for the Queensland learner test. Each answer is checked against the official Queensland handbook or road rules; use the practice-question links to test yourself.
Drugs can stay in your system long after the "high" has worn off. What does this mean for driving?
Answer: You may still be committing an offence even if you feel fine
Police roadside drug tests detect drugs, not how you feel. Illegal drugs can be detected long after the effects wear off.
Practice question 363 · official source
Which describes the effect of cannabis on driving?
Answer: Slower reactions and poorer judgement of distance and time
Cannabis slows reactions and alters perception of time and distance, so it makes driving more dangerous.
Practice question 364 · official source
What is a common effect of stimulants such as ecstasy, cocaine or methamphetamine on drivers?
Answer: They make drivers feel they drive better, so they take more risks
Stimulants can give false confidence and lead to aggressive, risk-taking driving.
Practice question 365 · official source
Which type of drug is most likely to make a driver drowsy and slow to react?
Answer: Opiates such as heroin, morphine or codeine
Opiates cause drowsiness and slower reactions. Never drive after taking them unless a doctor or pharmacist has confirmed you can.