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

466. Which of the following statements regarding the EV charging cable coupler is INCORRECT?

  1. ①It should have separate polarity and grounding electrode as it has a structure that cannot be replaced with other wiring equipment.
  2. ②The grounding electrode should have a structure that is connected last when starting and separated first upon shutoff.
  3. ③It should have a mechanical device for locking or an attachment/detachment to prevent unintended load shedding.
  4. ④It should have an interlock function that suspends the power supply of charging cable when the connector of an EV is separated from the connection port.
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Answer 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 133 (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.