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

604. Which of the following are the TWO correct descriptions of eco-friendly driving practices?

Choose 2 answers.

  1. ①It is related to the Kyoto Protocol, which stipulates targets for reducing greenhouse gas emissions.
  2. ②Substances that cause air pollution include hydrocarbons, carbon monoxide, carbon dioxide, and nitrogen oxides.
  3. ③To increase the temperature inside the vehicle, start the engine and let it idle for a long time.
  4. ④Inspect the vehicle frequently and replace the engine oil every 2,000km driving distance.
Show the answer

Answer ①, ②

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 176 (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.