Question 632 in the bank

What is the meaning of the following traffic sign?

A blue square with a white border containing a red-bordered white circle with a black 30, crossed by a thick black diagonal line. Meaning: End of 30 k.p.h zone.
  1. Correct answer: End of 30 k.p.h zone.
  2. Recommended speed of at least 50 k.p.h.
  3. Beginning of 30 k.p.h zone.
  4. An area of at least 30 k.p.h.

Why this is the answer

The correct answer in the official bank: End of 30 k.p.h zone.

A blue square showing a circle with 30 marks a 30 k.p.h zone, where the limit applies on all streets inside the area. The black diagonal line cancels the sign, so it marks where the zone ends and the normal speed limits of the road apply again. The same sign without the line marks the beginning of the zone, and it never sets a minimum speed.

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).