What is the consequence on the braking system if the vehicle's engine is switched off and it is equipped with a brake booster?

Question

DentroTest · Accepted Answer

The brake booster is an active safety element that multiplies the force the driver applies to the pedal, making braking easier. This device works by utilizing the vacuum generated by the running engine. If the engine is switched off: The brake booster stops working: You do not lose total braking capability (the hydraulic system is still connected), but you lose the assistance. Direct consequence: The pedal feels much stiffer, and you will have to apply much more physical pressure with your foot to get the car to stop. The other options are incorrect because wheels do not lock due to a lack of assistance (on the contrary, it is harder to lock them without sufficient force), and the handbrake is an independent mechanical system.

What is the consequence on the braking system if the vehicle's engine is switched off and it is equipped with a brake booster?

Want to pass the Permit B (English) theory test first time?

📚 Keep practicing with more questions from Adherence, Tires and Brakes

Is it advisable to combine engine braking with the service brake?

Consequences of Excess Load on Vehicle Tires

What is the function of ABS during hard braking?

Physical Limit of Braking Ability

Minimum Tire Tread Depth and Road Adherence

Tire Wear Factors

Minimum Tire Tread Depth

Influence of Load on Braking Distance

Can you use the parking brake while moving?

Braking Adherence