Georgia Commercial Driver License Practice Test

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What can happen if water enters the brake system?
Correct Answer:
Brakes may become weak, apply unevenly, or grab
Explanation:
Water entering the brake system can lead to a multitude of issues that compromise the effectiveness and reliability of the braking system. If water is present, it can result in the brakes becoming weak, meaning they won't apply sufficient force when engaged. This can be particularly dangerous since a reduced braking ability can significantly increase stopping distances. Additionally, the brakes may apply unevenly due to the presence of water. This uneven application can cause one side of the braking system to engage differently than the other, leading to instability and difficulty controlling the vehicle. Furthermore, if the brakes grab, it can create a jerking effect while driving, which is not only uncomfortable but also hazardous. In contrast to this scenario, other outcomes of water presence in the brake system — such as seizing, producing noise, overheating, or complete failure — could happen, but they are generally less immediate consequences than those described. While sticky or rusted brakes can also arise from moisture, especially over time, the immediate and critical concerns revolve around weakness, uneven application, or grabbing during operation, making the first choice the most accurate reflection of what can happen if water enters the brake system.

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