SC DMV Permit Alcohol, Drugs, and Impaired Driving 1 — Questions and Answers
Question 1: What is the legal Blood Alcohol Concentration (BAC) limit for adult drivers in South Carolina?
- 0.05%
- 0.08% (Correct answer)
- 0.10%
- 0.06%
Correct answer: 0.08%
In South Carolina, it is illegal for drivers 21 and older to operate a vehicle with a BAC of 0.08% or higher.
Question 2: What is the legal BAC limit for drivers under 21 in South Carolina?
- 0.08%
- 0.04%
- 0.02% (Correct answer)
- 0.00%
Correct answer: 0.02%
South Carolina has a zero-tolerance policy for underage drinking and driving with a BAC limit of 0.02% for drivers under 21.
Question 3: What does South Carolina's implied consent law mean?
- You consent to random vehicle searches
- You agree to chemical testing if lawfully arrested for DUI (Correct answer)
- You consent to field sobriety tests at any stop
- You agree not to drink before driving
Correct answer: You agree to chemical testing if lawfully arrested for DUI
By driving in SC, you implicitly consent to chemical tests (breath, blood, urine) if lawfully arrested for suspected DUI.
Question 4: What happens to your license if you refuse a breath test in SC after a DUI arrest?
- Nothing — refusal is protected
- Automatic license suspension (Correct answer)
- A warning is issued only
- License suspended only if convicted
Correct answer: Automatic license suspension
Refusing a breath test in SC results in an automatic license suspension regardless of whether you are convicted of DUI.
Question 5: Which of the following can impair driving similarly to alcohol?
- Prescription medications
- Over-the-counter cold medicines
- Illegal drugs
- All of the above (Correct answer)
Correct answer: All of the above
Prescription drugs, OTC medications, and illegal substances can all impair judgment, reaction time, and coordination needed for safe driving.
Question 6: How does alcohol affect driving ability?
- It improves reaction time
- It impairs judgment, coordination, and reaction time (Correct answer)
- It has no effect below 0.05% BAC
- It only affects vision
Correct answer: It impairs judgment, coordination, and reaction time
Alcohol impairs multiple functions simultaneously, including judgment, coordination, vision, and reaction time, even at low BAC levels.