Which of the following is true about a dual air brake system?
Answer: It uses a single set of brake controls, one is called the "primary" system and one is called the "secondary" system, one system usually operates the front axle and one operates the rear axle
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.