CDL Air Brakes Practice Test Results

Question 1
76% answer correctly
An air tank safety valve is typically set at how many psi?
100
125
200
150
Question 2
35% answer correctly
Automatic air tank drains should be emptied how often?
Weekly
Daily
Monthly
Never
Question 3
93% answer correctly
Why must air tanks be drained?
To verify they meet pressure requirements
To check for leaks
To release oil and water buildup
So they can be inspected