CDL Air Brakes Practice Test Results

Question 1
66% answer correctly
In vehicles equipped with air brakes, parking brakes are:
Spring brakes
Air brakes
Rotor brakes
Disc brakes
Question 2
48% answer correctly
On large buses the low pressure warning signal will trigger at what psi?
60
60 to 65
80 to 85
100
Question 3
43% answer correctly
A dual air brake system is one in which:
Two brake systems that each have their own set of controls
Two sets of brake controls operate a single brake system
Two brake systems use the same set of brake controls
Two control systems that each have their own set of breaks