A dual air brake system:
Answers
Consists of two separate air brake systems that share a single set of controls.
Is a single air brake system with two different sets of controls.
Consists of one air brake system for the left side of the truck and one system for the right side of the truck, each with its own set of controls.
The correct answer and explanation is:
The correct answer is:
Consists of two separate air brake systems that share a single set of controls.
Explanation:
A dual air brake system is an advanced braking system found on many heavy trucks and commercial vehicles. The purpose of this system is to improve safety and reliability by providing redundancy, ensuring that if one air brake system fails, the other can still function.
A dual air brake system typically consists of two separate air brake circuits: a primary circuit and a secondary circuit. These two circuits are usually linked to different sets of brake components (such as the brakes for the front and rear axles) and work independently from each other. However, both systems share a common control system, which simplifies the operation of the vehicle for the driver. The primary and secondary circuits each have their own air tanks, valves, and lines, but they are controlled through a single set of brake pedals and switches.
This setup allows for greater safety because if there is a failure in one of the circuits (for example, a leak or air pressure drop in one tank), the other system can still provide sufficient braking power. In practice, the system is designed to allow the driver to continue operating the vehicle safely, even if one of the circuits malfunctions. However, the vehicle would have reduced braking capacity, and the driver should seek repair as soon as possible.
Dual air brake systems are essential for larger vehicles because they help ensure that a complete braking failure is much less likely. The system is regulated under strict safety standards, and the air pressure in both circuits must be maintained within specific limits to ensure proper operation.
In summary, a dual air brake system ensures redundancy by using two separate air circuits, which share a single set of controls for easier management by the driver, while improving overall braking reliability and safety.