Practice question

Why is a single drink risky for a commercial driver?

  1. Alcohol affects judgment and coordination, and CMV drivers face a lower 0.04 percent BAC standard
  2. Alcohol improves confidence without performance effects
  3. Only illegal drugs affect CMV operation
  4. The CDL standard is higher than the regular-driver standard

Answer: A — Alcohol affects judgment and coordination, and CMV drivers face a lower 0.04 percent BAC standard

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: DC CDL General Knowledge Practice Questions - District of Columbia Commercial Driver License General Knowledge Test Exam →