Michigan CDL - Air Brakes Practice Exam

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Prepare for the Michigan CDL Air Brakes Test with our comprehensive quiz. Utilize flashcards and multiple choice questions featuring hints and detailed explanations. Ace your exam with ease!

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What can happen if brake pads create too much heat by rubbing against brake drums?

The brakes may stop working
The vehicle may accelerate
The brake fluid may boil
The braking distance may shorten

The correct answer is: The brakes may stop working

If brake pads generate excessive heat by rubbing against the brake drums, one potential outcome is that the brakes may stop working effectively, which is critical for safe vehicle operation. This phenomenon is known as "brake fade." When the brakes overheat, the friction material can lose its effectiveness, significantly reducing the amount of friction generated when the brake pedal is applied. This can lead to a situation where the driver has to press the brake pedal harder without achieving the desired stopping power, or in extreme cases, the brakes can fail altogether. Maintaining proper operating temperature is essential for effective braking performance. Excessive heat can compromise the integrity of the brake system, leading to malfunction and loss of stopping power, which poses serious safety risks while driving.