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

225. Under the Road Traffic Act, if the visibility distance is less than 50 m due to heavy rain, the speed of a vehicle must be reduced by ( ) of the maximum prescribed speed. Which fits the parentheses?

  1. ①50/100
  2. ②40/100
  3. ③30/100
  4. ④20/100
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Answer ①

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 63 (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.