Washington State Knowledge Test Alcohol, Drugs, and Driving 2 — Questions and Answers
Question 1: What is the approximate time it takes for the liver to process one standard drink?
- 15 minutes
- 30 minutes
- 1 hour (Correct answer)
- 2 hours
Correct answer: 1 hour
The liver metabolizes approximately one standard drink per hour; this rate cannot be increased by eating, coffee, or exercise.
Question 2: In Washington, a commercial driver's BAC limit while operating a commercial vehicle is:
- 0.08%
- 0.06%
- 0.04% (Correct answer)
- 0.02%
Correct answer: 0.04%
Commercial drivers in Washington are held to a stricter BAC limit of 0.04%, half the standard limit for non-commercial drivers.
Question 3: Which factor most influences how alcohol affects an individual driver?
- The type of alcohol consumed (beer vs. spirits)
- Body weight, gender, food consumed, and metabolism (Correct answer)
- The time of day drinking occurred
- The driver's driving experience
Correct answer: Body weight, gender, food consumed, and metabolism
Alcohol's effect on driving is influenced by body weight, gender, whether food was eaten, individual metabolism, and overall tolerance.
Question 4: Under Washington law, open containers of alcohol in a vehicle must be:
- Placed in the back seat out of driver's reach
- Sealed and placed in the trunk or out of reach of passengers (Correct answer)
- Only in the back seat if passengers are present
- Allowed only for passengers, not the driver
Correct answer: Sealed and placed in the trunk or out of reach of passengers
Washington's open container law requires all open alcohol containers to be sealed and stored in the trunk or an area not accessible to the driver or passengers.
Question 5: What is 'Drug Recognition Expert' (DRE) evaluation in Washington used for?
- Testing new prescription drugs for safety
- Identifying drug-impaired drivers at traffic stops (Correct answer)
- Certifying addiction counselors
- Processing drug evidence for court cases
Correct answer: Identifying drug-impaired drivers at traffic stops
DRE officers are specially trained to identify signs of drug impairment in drivers who may not show alcohol intoxication on a breath test.
Question 6: If a driver's license is revoked for a DUI in Washington, they must typically install what device to have driving privileges restored?
- Dashboard camera
- GPS tracking device
- Ignition interlock device (Correct answer)
- Breathalyzer in the glove box
Correct answer: Ignition interlock device
Washington requires DUI offenders to install an ignition interlock device (IID), which prevents the vehicle from starting if alcohol is detected on the driver's breath.
Washington State Knowledge Test Alcohol, Drugs, and Driving 2
What is the approximate time it takes for the liver to process one standard drink?