Question 380 in the bank

Which of the following traffic signs prohibit a left U-turn?

Three blue circles with white arrows: 203 an upward arrow, 202 an upward arrow with a left branch, 205 a left-pointing arrow.
  1. All of the following signs prohibit a U-turn.
  2. 205
  3. Correct answer: 203
  4. 202

Why this is the answer

The correct answer in the official bank: 203

Sign 203 requires driving straight ahead only, so neither a left turn nor a U-turn is allowed. A sign that permits a left turn also permits a left U-turn, unless another sign prohibits it and it can be done safely. That is why 202 (straight or left) and 205 (left only) do allow a U-turn.

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).