Question 397 in the bank

When traffic sign 401 is placed at an entry to a road, which traffic sign should be placed at the entry from the opposite side of the same road?

Four numbered signs: circle with black down arrow and red up arrow (307), red circle with white bar (402), red-bordered white circle (401), blue square with white up arrow (618); separately, another red-bordered white circle (401).
  1. 618
  2. 307
  3. Correct answer: 401
  4. 402

Why this is the answer

The correct answer in the official bank: 401

Sign 401 closes the road to all vehicles in both directions, so the same sign is placed at the entry from the opposite side. Sign 402 only bans entry from one direction, because it marks a one-way road, whose other end gets sign 618 for one-way traffic. Here the road is closed entirely, so no end allows entry.

Topic: Traffic signs. The bank marks it for these classes: Light truck (C1), Heavy truck (C), Bus (D), Motorcycle (A), Tractor (1), Private car (B).