Examkin

Question

Difficulty: MediumVehicle Emergencies and Equipment Failures

If your primary foot brakes fail completely while driving on a highway, in what correct order should you perform the following steps to bring your vehicle safely to a stop?

  1. 1Pump the brake pedal rapidly and hard several times.
  2. 2Shift the transmission into a lower gear.
  3. 3Gently apply the parking brake while holding the brake lever release button.
  4. 4Steer safely toward the emergency shoulder or runaway ramp while activating hazard lights.

Answer

The correct sequence to handle total brake failure is: first pump the brake pedal rapidly, second shift into a lower gear, third apply the parking brake gradually, and fourth steer safely off the road into a safe location.
The proper response protocol starts with pumping the brake pedal to test for remaining hydraulic pressure. If that fails, shifting to a lower gear uses the engine's compression to reduce vehicle speed safely. Next, the parking brake is applied gradually to avoid locking the rear wheels. Finally, once control and speed are managed, steer safely off the roadway while warning other drivers with hazard lights.

Step-by-Step Solution

1
Attempt pressure recovery
Pumping the pedal may build up enough hydraulic fluid pressure to restore partial braking force.
It is the quickest non-invasive check before taking secondary slowing actions.
2
Engage engine braking
Downshifting to a lower gear uses engine compression to reduce speed.
Lowering speed via engine compression reduces kinetic energy safely without relying on friction brakes.
3
Apply mechanical emergency brake
The parking brake exerts direct mechanical stopping force on the rear wheels.
Holding the release button ensures you can modulate the pressure manually to prevent the rear tires from locking up and causing a spin.
4
Execute safe off-road maneuver
The vehicle is directed to a safe location clear of moving traffic.
Hazard lights alert nearby motorists while you bring the vehicle to a complete standstill off the active travel lanes.

Key Concept

Brake Failure Emergency Protocol
Estimated Time:1m 0s
Rate this question

Topics

Vehicle Emergencies and Equipment Failures

More questions from this topic