CDL Air Brakes Practice Test Results

Question 1
93% answer correctly
Why must air tanks be drained?
To release oil and water buildup
To check for leaks
To verify they meet pressure requirements
So they can be inspected
Question 2
69% answer correctly
If the air compressor stops working, air brakes:
Immediately fail
Can still be used several times
Can be used indefinitely
Cannot be used
Question 3
76% answer correctly
An air tank safety valve is typically set at how many psi?
100
200
150
125