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!

Practice this question and more.

True or False: If the ABS is not working, you lose all brake functionality.

True
False
It varies by vehicle type
Only if the load is heavy

The correct answer is: False

The statement is false because the Anti-lock Braking System (ABS) is not the only system responsible for braking in a vehicle. ABS is designed to prevent wheel lock-up during hard braking, helping maintain steering control and stability. If the ABS is malfunctioning, it does not mean that the vehicle's entire braking system fails. Traditional brake functionality remains intact; however, the driver may experience reduced control during hard braking scenarios. While it's important to address any ABS issues promptly to ensure optimal braking performance and safety, the basic braking system still functions without ABS. Therefore, the presence or absence of ABS does not result in a complete loss of brake functionality.