## Braking **Standard Braking Distance `(Geschwindigkeit / 10) * (Geschwindigkeit / 10)`** - [`(Speed / 10) * (Speed / 10)`](http://app.fahrschulcard.de/book/b-buch/08/navpoint3) **Evasive (Emergency) Braking Distance `((Geschwindigkeit / 10) * (Geschwindigkeit / 10)) / 2`** - [`((Speed / 10) * (Speed / 10)) / 2`](http://app.fahrschulcard.de/book/b-buch/08/navpoint3) **Examples**: *Standard* | Speed | Braking Distance | | ------------- | ------------- | | 30 km/h | 9 m | | 50 km/h | 25 m | | 60 km/h | 36 m | | 100 km/h | 100 m | *Evasive* | Speed | Braking Distance | | ------------- | ------------- | | 30 km/h | 4.5 m | | 50 km/h | 12.5 m | | 60 km/h | 18 m | | 100 km/h | 50 m | **You increase your speed from 50 km/h to 100 km/h. How is the STANDARD braking distance changed according to the rule of thumb?** - It is quadrupled from 25 m to 100 m `(100 / 10) * (100 / 10) = 100 m` **What is the rule of thumb when calculating the braking distance for evasive braking on a dry, even and asphalted roadway?** - ~~`((Speed / 10) * 3) / 2`~~ - ~~`((Speed / 10) * 5) / 2`~~ - `((Speed / 10) * (Speed / 10)) / 2` **What is the effect of an automatic anti-locking device (ABS)?** - The vehicle is braked in the best possible way also on wet roadways - ~~Aquaplaning is prevented~~ - Steering control is largely retained when braking **When braking, you note that your vehicle pulls to the right. What should you do?** - ~~I do not need to fix the problem, as long as I can compensate by counter-steering~~ - I go to a car workshop - ~~I oil the brake pads~~ **What are the advantages of an [anti-slip device (ASR)](https://en.wikipedia.org/wiki/Traction_control_system)?** - ~~No locking of the wheels when braking~~ - No wheelspin when setting off - Reduced danger of sliding sideways when setting off on a slippery roadway **The brake lights do not function. What can be the causes of this?** - Defective stop light switch - ~~Brake pedal travel too short~~ - Defective bulbs **In which cases is it imperative to test the brakes?** - ~~Each time the engine oil is changed~~ - When you drive a different vehicle - If a vehicle has not been used for a longer period **What particular characteristics of disc brakes must you remember when driving on a wet road surface?** - ~~As a rule, the effect of disc brakes starts earlier than on a dry road surface~~ - As a rule, the effect of disc brakes starts later than on a dry road surface **You are driving on a very narrow road and can see 50 m ahead. What must be your maximum stopping distance?** - 25 m **Moisture can impair the action of drum brakes. What should you do?** - ~~Apply the brakes several times while at a standstill~~ - Cautiously apply the brakes while driving slowly - ~~Top up the brake fluid~~