Michigan CDL - Air Brakes Practice Exam

Question: 1 / 400

What is a common sign of a malfunctioning air brake system?

Increased stopping distance

Increased stopping distance is a common sign of a malfunctioning air brake system. When air brakes are not functioning properly, several issues can arise, such as air leaks, improper pressure, or worn components. These malfunctions can lead to a longer distance required to stop the vehicle, as the brakes may not engage effectively or may provide insufficient stopping power.

Understanding stopping distance is crucial for safety, especially in larger vehicles that rely on air brakes. When drivers notice that they need to apply the brakes sooner or with more force to achieve the same level of deceleration, it signals that the air brake system may not be operating correctly. Being aware of such signs allows drivers to take corrective action before they encounter a more serious issue or accident.

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Reduced noise from the brakes

Quicker brake response

Better fuel efficiency

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