Which, of the following types of brakes, cannot be checked at the depot?

The operation of the electrodynamic brake, which involves converting the traction motors into generators, is only effective at higher speeds. On the depot premises, where vehicles move at a minimal speed, as confirmed by the visible 10 km/h speed limit sign, it is not possible to accelerate the tram and properly test this type of brake. The other brakes (e.g., parking, track) can be checked during slow manoeuvres.