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Does ABS guarantee a shorter stopping distance on every road surface?
- A.Yes, ABS shortens every stop by a fixed percentage
- B.Yes, but only when the vehicle is empty
- C.No, ABS lengthens every stop on dry pavement
- D.No; its main benefit is control and stability, and on some loose surfaces such as deep gravel or snow a locked wheel may stop in a shorter distance
Correct answer
D. No; its main benefit is control and stability, and on some loose surfaces such as deep gravel or snow a locked wheel may stop in a shorter distance
Why
ABS trades on keeping wheels rolling for steering and stability rather than promising minimum distance everywhere. Drivers who believe it shortens every stop may follow too closely and discover the limit in traffic.
Manual topic: Air Brakes - ABS · From the Air Brakes practice bank (AB-200).