Question 12 of 25
Score: 0/0Which of the following are true about a dual air brake system?
ExplanationMost heavy-duty vehicles use dual air brake systems for safety. They have two separate systems controlled by one brake pedal—one usually operates the rear brakes, and the other controls the front brakes or additional axles.
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Did you know? Memorize the order: low-air warning first, then the spring brakes lock. The test checks that sequence.
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