You press the brake pedal of your motor vehicle fully down. What is the maximum safe decrease of pressure in the braking system if the air tanks are full?

In the context of braking systems for motor vehicles, the importance of understanding the maximum safe decrease of pressure in the braking system is crucial for vehicle safety and regulatory compliance. In Germany, traffic regulations mandate that commercial vehicles, especially those equipped with air brake systems, must adhere to specific pressure limits to ensure effective braking performance.

When you press the brake pedal fully, the braking system relies on the air tanks to supply compressed air to activate the brakes. The maximum safe decrease in pressure indicates the minimum air pressure required to maintain effective braking. If the pressure drops below this limit, the vehicle may experience reduced braking power, which can be dangerous and lead to accidents.

In this case, the selected combination is correct because it acknowledges the maximum safe decrease as an important safety measure. Understanding and adhering to this limit prevents braking system failures and ensures compliance with German traffic regulations, enhancing safety for both the driver and other road users. It is essential for drivers to be aware of these limits, as they are directly related to the vehicle's ability to stop safely in various conditions.