Nova Scotia Driving Test Practice: Ace your driving test

What should you do if your brakes fail while driving?

1. Shift to a lower gear and use the emergency brake

2. Pull over and turn off the engine

3. Pump the brake pedal rapidly

4. Steer towards the sidewalk

The correct answer is: Shift to a lower gear and use the emergency brake

When experiencing brake failure while driving, shifting to a lower gear and using the emergency brake is a crucial step in regaining control of the vehicle. When you shift to a lower gear, this helps to utilize engine braking to slow down the vehicle. Engine braking occurs because the engine is forced to work against the momentum of the car, which reduces speed. Using the emergency brake is also essential, as it provides an additional means to decelerate. However, it should be used cautiously, as abrupt application can cause the rear wheels to lock up, leading to a potential loss of control. This combination of shifting gears and applying the emergency brake can help bring the vehicle to a safer stop. The other choices do not provide the most effective or safest methods in the event of brake failure. Simply pulling over and turning off the engine could lead to loss of steering control, and pumping the brake pedal may not be effective if there is no brake fluid or pressure. Steering towards the sidewalk could pose risks to pedestrians and property, making it potentially hazardous.