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

620. Which of the following is the appropriate conduct for the driver of a freight business vehicle that must be equipped with a tachometer according to the Road Traffic Act?

  1. ①Drive without a tachometer.
  2. ②Drive with a tachometer that is not in working condition due to a breakdown.
  3. ③Drive with a tachometer that is used for purposes other than the intended use.
  4. ④Drive with a tachometer that has been regularly maintained to prevent malfunctions.
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Answer 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 180 (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.