Washington permit test: impaired driving and dui
Alcohol, cannabis, medications and polydrug use, DUI limits for adults and minors, implied consent and the open container law. 21 questions, 10 at a time, starting with ones you haven't seen.
Rules to remember10 key impaired driving and dui rulesShow the rules
- Drivers 21 and older are at DUI level with more than 5 nanograms of active THC per milliliter of blood. (p. 37)
- For drivers 21 and older, a BAC of 0.08% or higher is considered a DUI. (p. 37)
- DUI convictions can include driving privileges suspended for 90 days to 4 years, along with other penalties. (p. 38)
- Alcohol- and drug-related offenses appear on your driving record for life. (p. 38)
- Drivers under 21 face DUI consequences at a BAC of 0.02% or more, far lower than the adult limit. (p. 38)
- Alcohol is the most common impairing substance involved in impaired driving crashes. (p. 72)
- Cannabis is legal for those 21 or over, but driving after consuming any cannabis is illegal for all ages. (p. 73)
- Over-the-counter drugs for headaches, colds or allergies can make you drowsy and affect your driving. (p. 74)
- Some medicines may not impair you alone, but taken with alcohol they can cause severe impairment, because many drugs multiply alcohol's effects. (p. 74)
- Polydrug use, mixing more than one type of drug, is the most common impairment involved in fatal crashes. (p. 75)
Taken from the explanations to checked practice questions; page numbers link to the official handbook.
Sample impaired driving and dui questions
1.Your doctor just started you on a new prescription. What should you do before driving?
- ADrive normally; prescriptions are safe
- BWait until you know how it affects you
- CTake it with coffee to stay alert
- DDrive only on highways for a week
Show the answer
✓ B. Wait until you know how it affects you
Don't drive after starting a new prescription until you know what effect it has on your judgment, coordination and reaction time.
2.How does alcohol affect a driver's reactions, according to the handbook?
- AIt only affects your vision at night
- BIt sharpens your reactions and focus
- CIt slows reactions and reduces concentration
- DIt has no effect on your reactions
Show the answer
✓ C. It slows reactions and reduces concentration
Alcohol slows your reactions and reduces concentration and the ability to scan, and can blur vision and cause overconfidence.
3.You are bringing home an opened bottle of wine from a restaurant. Where in your car may you carry it?
- AIn the glove box
- BIn the center console
- CUnder the driver's seat
- DIn the trunk
Show the answer
✓ D. In the trunk
Open alcohol and cannabis products can only be transported in a trunk or truck bed, not in storage compartments the driver can reach.
4.You are 18 and used cannabis earlier today. What amount of active THC in your blood can bring DUI consequences?
- AAny amount above 0 nanograms
- BOnly more than 5 nanograms
- COnly more than 10 nanograms
- DNone, if you feel sober
Show the answer
✓ A. Any amount above 0 nanograms
Drivers under 21 face DUI consequences for any active THC above 0 nanograms per milliliter of blood.