Air Brake (Q Endorsement) Practice · Question
When performing an emergency stop with an air brake equipped commercial vehicle, what is the correct technique?
For an emergency stop with air brakes, apply firm, steady pressure, sometimes referred to as 'stab braking' if anti-lock brakes are not present or not working e
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Question: When performing an emergency stop with an air brake equipped commercial vehicle, what is the correct technique?
Answer options: ✅ Apply firm, steady pressure to the brake pedal until the vehicle stops, avoiding skidding.
- Pump the brake pedal rapidly to prevent wheel lock-up.
- Depress the brake pedal lightly and steer away from the obstacle.
- Apply the parking brake sharply.
Correct answer: Apply firm, steady pressure to the brake pedal until the vehicle stops, avoiding skidding.
Explanation: For an emergency stop with air brakes, apply firm, steady pressure, sometimes referred to as 'stab braking' if anti-lock brakes are not present or not working effectively, to maximize braking without locking the wheels and causing a skid.
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