Exam (elaborations)
CDL Air Brake Practice Test | Questions with 100% Correct Answers| 2024/2025 Verified
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The parking or emergency brake on a heavy vehicle can only be held in position by something that cannot leak away, like: a. Fluid pressure b. Spring pressure c. Air pressure d. Any of the above - b. Spring pressure A straight truck or bus air brake system should not leak at a rate of more tha...
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