TDC Alcohol, Drugs, and Impaired Driving 2 — Questions and Answers
Question 1: How long does it typically take for the body to metabolize one standard drink of alcohol?
- 15 minutes
- 30 minutes
- About 1 hour (Correct answer)
- 2 hours
Correct answer: About 1 hour
The liver processes approximately one standard drink per hour, and this rate cannot be significantly accelerated by coffee, food, or exercise.
Question 2: Which of the following factors does NOT affect how quickly alcohol is absorbed into the bloodstream?
- Body weight
- Whether food was eaten before drinking
- The color of the alcoholic beverage (Correct answer)
- Biological sex
Correct answer: The color of the alcoholic beverage
The color of a beverage has no effect on alcohol absorption; factors like body weight, food intake, and biological sex all influence how quickly BAC rises.
Question 3: What is the safest course of action if you feel drowsy or impaired while driving?
- Roll down the window for fresh air and continue to your destination
- Pull over safely and rest, or arrange alternative transportation (Correct answer)
- Turn up the radio or music to stay more alert
- Increase your speed to reach your destination more quickly
Correct answer: Pull over safely and rest, or arrange alternative transportation
Pulling over and resting or getting a ride is the only safe option when feeling impaired, as drowsiness significantly reduces driving ability.
Question 4: Which of the following is NOT a recognized sign of alcohol impairment?
- Slurred speech
- Enhanced night vision (Correct answer)
- Poor coordination and balance
- Slowed reaction time
Correct answer: Enhanced night vision
Alcohol does not enhance vision; in fact, it impairs visual acuity and depth perception, along with coordination and reaction time.
Question 5: What does an 'implied consent' law require of drivers?
- Drivers must verbally consent before any traffic stop
- By operating a vehicle on public roads, drivers consent to chemical testing if suspected of DUI (Correct answer)
- Police must obtain written consent before searching a vehicle
- Passengers automatically consent to liability for an impaired driver
Correct answer: By operating a vehicle on public roads, drivers consent to chemical testing if suspected of DUI
Implied consent laws hold that by choosing to drive on public roads, drivers have already consented to chemical testing (breath, blood, or urine) when lawfully arrested for DUI.
Question 6: Which over-the-counter drug category is known to impair driving ability in a manner similar to alcohol?
- Antihistamines (allergy medications) (Correct answer)
- Multivitamins
- Probiotics
- Electrolyte supplements
Correct answer: Antihistamines (allergy medications)
Many antihistamines cause drowsiness and slowed reaction time, impairing driving ability similarly to alcohol, which is why their labels warn against operating machinery.
Question 7: What effect does marijuana use have on a driver's ability?
- It has no measurable effect on driving performance
- It only affects depth perception temporarily
- It can impair reaction time, coordination, and judgment necessary for safe driving (Correct answer)
- It makes drivers more cautious and therefore safer
Correct answer: It can impair reaction time, coordination, and judgment necessary for safe driving
Marijuana impairs short-term memory, reaction time, and motor coordination, all of which are essential for safe vehicle operation.
TDC Alcohol, Drugs, and Impaired Driving 2
How long does it typically take for the body to metabolize one standard drink of alcohol?