Question 1638 in the bank

Which sign permits a vehicle driver or a Tram driver to proceed only to the right?

Four numbered signal heads, 711, 713, 714 and 715, with black circles and white bars, vertical or slanted in different directions.
  1. Correct answer: 711.
  2. 715.
  3. 713.
  4. 714.

Why this is the answer

The correct answer in the official bank: 711.

In these signals the permitted direction is shown by a lit white bar: a vertical bar allows going straight, and a bar slanting to the right allows turning right. Sign 711 shows only the right-slanting bar, so it permits proceeding to the right only. The other signs also include a vertical bar, and sometimes a left-slanting one, so they allow more than one direction.

Topic: Traffic signs. The bank marks it for these classes: Bus (D).