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.
SC DMV Permit Alcohol, Drugs, and Impaired Driving 1
What is the legal Blood Alcohol Concentration (BAC) limit for adult drivers in South Carolina?