Arizona Air Brakes CDL Practice Test

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Study for the Arizona Air Brakes CDL Test. Master the air brake system concepts with flashcards and multiple choice questions, each complemented by hints and explanations. Get exam ready!

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What should air brake vehicles not exceed in terms of air leakage?

  1. 4 PSI per minute

  2. 3 PSI per minute

  3. 2 PSI per minute

  4. 5 PSI per minute

The correct answer is: 2 PSI per minute

The appropriate air leakage rate for air brake systems is critical to ensuring safety and reliability during operation. A limit of 2 PSI per minute is established to maintain the integrity of the braking system. If the air leakage exceeds this threshold, it indicates potential issues such as leaks or inefficiencies that could compromise braking performance. Maintaining a low rate of air leakage helps ensure that the air brake system remains pressurized adequately to function effectively when needed. A measurement above 2 PSI per minute could suggest that the vehicle is not properly maintained or that there is an issue requiring immediate attention. It is essential for drivers to be vigilant about these standards to ensure their vehicle remains safe and compliant with regulations.

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