Question 378 in the bank

Which warning sign alerts about two-way traffic ahead?

Four numbered signs: 145, a red-bordered white triangle with two opposite black arrows; 308, 620 and 618, blue squares with arrows.
  1. 618
  2. Correct answer: 145
  3. 620
  4. 308

Why this is the answer

The correct answer in the official bank: 145

Sign 145 is a warning sign: a triangle with a red border and two black arrows pointing in opposite directions. It warns of two-way traffic ahead of you. The other signs are not warning signs: 618 marks a one-way road, 308 deals with right of way over oncoming traffic, and 620 is a blue square sign.

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).