CDL Air Brakes Practice Test Results

Question 1
72% answer correctly
Spring brakes and air brakes should __________ be used together.
Sparingly
Never
Frequently
Always
Question 2
76% answer correctly
An air tank safety valve is typically set at how many psi?
125
150
200
100
Question 3
72% answer correctly
Spring brakes and air brakes should __________ be used together.
Always
Frequently
Sparingly
Never