Question 1637 in the bank

Which number marks the length of the “rear extension” of this vehicle?

Red flatbed truck with two rear axles; arrows labeled 22, 23, 7 and 27 run from different points near the rear wheels to its rear end.
  1. 22
  2. Correct answer: 7
  3. 27
  4. 23

Why this is the answer

The correct answer in the official bank: 7

The rear extension, or rear overhang, is the distance from the centre of the rear axle to the rearmost point of the vehicle. When a truck has two rear axles, it is measured from the midpoint between them, which is where the arrow marked 7 starts. Arrows starting at the centre of only one axle, or behind the wheels, do not match this definition.

Topic: Rules and regulations. The bank marks it for these classes: Light truck (C1), Heavy truck (C).