CDL Air Brakes Practice Test Results

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