2024 AZ CDL Practice Test: Class B - Test 6
Based on
2024 AZ CDL Handbook
24. A dual air brake system:
A
Consists of two separate air brake systems that share a single set of controls.
B
Is a single air brake system with two different sets of controls.
C
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.