Commercial Driver License (CDL) Class B Practice Test

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Study for the Commercial Driver License (CDL) Class B Test. Study using multiple-choice questions, hints, and explanations. Prepare for your exam effectively!

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What should a driver do to maintain control while using ABS brakes?

Apply the brakes hard
Steer smoothly while braking
Release the brake pedal completely
Brake only when necessary

The correct answer is: Steer smoothly while braking

To maintain control while using Anti-lock Braking System (ABS) brakes, it is important for a driver to steer smoothly while braking. ABS is designed to prevent wheel lock-up during hard braking, allowing for better control of the vehicle. When a driver applies the brakes firmly but steers smoothly, it enables them to maintain steering control while the system modulates braking pressure as needed. If hard braking is applied without proper steering input, the vehicle may still skid or lose control, despite the ABS's capabilities. Conversely, if the brake pedal is released completely, it can negate the benefits of the ABS, as the system requires continuous braking pressure to function effectively. It is also important not to overuse the brakes and to brake only when necessary; however, this does not directly relate to maintaining control during an ABS situation. Thus, the best practice is to steer smoothly while applying the brakes to ensure the driver retains maximum control of the vehicle.