CDL · Air brakes
What is the main job of an antilock braking system (ABS)?
Correct answer: It helps keep the wheels from locking up.
Answer options
- AIt lets the wheels lock during hard braking
- BIt always shortens the distance needed to stop
- CIt helps keep the wheels from locking up Correct
Why
ABS senses when a wheel is about to lock and adjusts brake pressure automatically, so you can keep steering while braking hard. It does not necessarily shorten stopping distance, and you should brake normally and let the system do its work.
About this question
Topic: Air brakes License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
Practice the whole set
This question is part of Antilock Brakes (ABS) (14 questions). Take the full set and check your score.
Practice Antilock Brakes (ABS)More questions from Antilock Brakes (ABS)
- The antilock system on your bus has failed. How does that affect your ability to brake?
- During hard braking, what is the main benefit of antilock brakes (ABS) on a bus?
- Suppose your vehicle's anti-lock braking system (ABS) develops a fault. Which of these is true?
- Which of these claims about an anti-lock braking system (ABS) is untrue?
- What is true of a vehicle's anti-lock brake system (ABS)?
- ABS does several things for a school bus driver. Which of these is NOT one of them?
- Which of these is true about antilock brakes (ABS)?
- Which statement correctly describes braking a bus that has antilock brakes (ABS)?
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