In a dual air brake system:

Question

Most heavy-duty vehicles use dual air brake systems. A dual air brake system consists of two separate air brake systems, connected by a single set of brake controls. Each system has its own air tanks.

Accepted Answer

Each system has its own air tanks.

Answer

Air tanks are shared by both systems.

Answer

You must designate which system you are using.

Answer

Brakes on only one side of the vehicle will work.