In a dual air brake system: Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question In a dual air brake system: Answers Each system has separate air tanks, hoses, and lines. The systems share air tanks, but each has its own separate hoses and lines. Each system uses the same lines and hoses. One system is the main braking system and a second system is ready to be used if the first one fails. Explanation A dual air brake system is made up of two separate air brake systems. The systems share a single set of brake controls, but each has its own air tanks, hoses, and lines. This questions appears in the following tests: Alabama Class B Knowledge Test Colorado Air Brakes Florida Air Brakes Florida Air Brakes Illinois Air Brakes Indiana Air Brakes Nebraska Class B Knowledge Test Nebraska Air Brakes North Carolina Air Brakes Oregon Air Brakes Tennessee Class A Knowledge Test Utah Air Brakes Wisconsin Air Brakes Wyoming Class A Knowledge Test