CDL · Emergencies
Which of these accurately describes stab braking?
Correct answer: You let off the brakes only once the wheels have locked.
Answer options
- AYou hold firm, steady pressure on the pedal so the wheels never lock.
- BIt is unsafe and should never be used in any vehicle.
- CYou let off the brakes only once the wheels have locked. Correct
Why
In stab braking you push the brakes all the way down, ease off when the wheels lock, and brake fully again as soon as they start rolling. Holding steady pressure without lockup is controlled braking, and stab braking is an accepted method for vehicles without antilock brakes.
About this question
Topic: Emergencies License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
Practice the whole set
This question is part of Skids and Emergency Braking (16 questions). Take the full set and check your score.
Practice Skids and Emergency BrakingMore questions from Skids and Emergency Braking
- Your tanker's front tires lose their grip and begin to slide. What is most likely to happen?
- When a skid begins, what is the main goal of your actions?
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- In a front-wheel skid, how will a straight vehicle with no trailer or articulation behave?
- Your drive wheels have locked under braking and the vehicle is sliding. What sequence of actions regains control?
- In an emergency stop, what is the most critical fact to keep in mind?
- What is the most effective way to recover from a skid?
- What is the most effective way to recover from any kind of skid?
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