On which of the following commercial vehicles is it obligatory to install an ABS wheel-locking prevention system?
- Commercial vehicles with an all up weight of 8,000 kg or less.
- Commercial vehicles with an all up weight of 4,000 kg or less.
- Correct answer: Commercial vehicles with an all up weight of 12,000 kg or more.
- Commercial vehicles with an all up weight of 10,000 kg or less.
Why this is the answer
The correct answer in the official bank: Commercial vehicles with an all up weight of 12,000 kg or more.
An ABS system must be installed in a commercial vehicle whose all up weight is 12,000 kg or more. In a heavy vehicle, wheels locking under hard braking can cause skidding and loss of control. ABS prevents the wheels from locking, so the driver keeps the ability to steer even in emergency braking. The "or less" answers are wrong, because the requirement applies to the heavier vehicles.