Michigan CDL - Air Brakes Practice Exam

Question: 1 / 400

What are the consequences of driving with low air pressure in the brake system?

Improved fuel efficiency

Increased stopping distance and potential brake failure

Driving with low air pressure in the brake system significantly impacts the performance and safety of the vehicle. When the air pressure is low, the brake components may not function properly, leading to inadequate braking force. This can result in increased stopping distances, meaning that the driver will need more time and distance to come to a complete stop.

Moreover, low air pressure can lead to brake system failure, particularly in air brake systems that rely on sufficient pressure to engage the brakes effectively. The brake components may not engage or release properly, increasing the risk of an accident due to the inability to slow down or stop when needed. Understanding the critical role of air pressure in braking systems is essential for safe vehicle operation, underscoring the importance of regular maintenance and monitoring of brake pressure levels to ensure optimal safety.

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Decreased engine performance

Better handling of the vehicle

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