What does ABS do during braking in challenging conditions?

What does ABS do during braking in challenging conditions?

• A. ABS increases braking opportunity by causing wheels to lock quickly.
• B. ABS increases throttle to regain traction.
• C. ABS disengages brakes on all wheels during slippery conditions.
• D. ABS prevents wheel lock by modulating brake pressure, allowing steering control and typically reducing stopping distance on slippery surfaces.

Answer: (D)

When braking on challenging surfaces you want to avoid the wheels locking, because a skid makes you lose steering and control. ABS prevents wheel lock by sensing each wheel’s speed and rapidly adjusting brake pressure to those wheels. This keeps the wheels rotating, preserves traction, and lets you steer around hazards while braking. On slippery surfaces, this control typically leads to a shorter stopping distance compared with locked-wheel skidding. The other ideas don’t fit because ABS isn’t about locking wheels, increasing throttle, or disengaging brakes on all wheels. It’s all about modulating brake pressure to prevent lock and maintain control.

When braking on challenging surfaces you want to avoid the wheels locking, because a skid makes you lose steering and control. ABS prevents wheel lock by sensing each wheel’s speed and rapidly adjusting brake pressure to those wheels. This keeps the wheels rotating, preserves traction, and lets you steer around hazards while braking. On slippery surfaces, this control typically leads to a shorter stopping distance compared with locked-wheel skidding.

The other ideas don’t fit because ABS isn’t about locking wheels, increasing throttle, or disengaging brakes on all wheels. It’s all about modulating brake pressure to prevent lock and maintain control.