Driver's license written test question bank, effective 2026-03-09

129. Which of the following are true about drowsy and/or fatigued driving? (Select TWO)

Choose 2 answers.

  1. ①If drowsy while driving, you must consume more caffeine and change lanes more often to avoid monotonous driving.
  2. ②Your alertness improves on roads with fewer variations and potential hazards, thereby reducing the risk of drowsy driving.
  3. ③Avoid driving if you have taken cold medicines since they may cause drowsiness.
  4. ④Alcohol deactivates certain cerebral functions and increases the chance of drowsiness.
Show the answer

Answer ③, ④

The English PDF has no explanation for this question. The Korean page carries the official explanation. Korean version of this question

Source KoROAD Safe Driving Integrated Civil Service, Driver's License Written Test Question Bank [English] (effective 2026-03-09), post 1923, Download the source PDF source PDF page 36 (checked on 2026-09-04). The question and answer are the KoROAD text as published. The buttons and notes on this page were written by the developer and have not yet been checked by a native speaker. The questions and answers themselves are the official KoROAD text.