3 ptsTOfficial number: 7604
Appropriately adjusted external mirror of an agricultural tractor shows:
Explanation
Correct answer: a part of the vehicle side and the area behind the vehicle corresponding to the vehicle side.
The visible portion of the vehicle's side in the mirror is an essential reference point that allows the driver to correctly assess the distance and position of other objects. However, the main part of the mirror's field of view must cover the widest possible area behind the vehicle to ensure safe observation of the surroundings and to minimise the so-called blind spot.