CDL Air Brakes Practice Test Results

Question 1
66% answer correctly
Slack adjusters adjust which of the following?
Air tank pressure
Slack in the service line
Slack in the brakes
Spring brake tension
Question 2
66% answer correctly
Slack adjusters adjust which of the following?
Spring brake tension
Slack in the brakes
Air tank pressure
Slack in the service line
Question 3
72% answer correctly
Spring brakes and air brakes should __________ be used together.
Never
Frequently
Always
Sparingly