CDL Air Brakes Practice Test Results

Question 1
82% answer correctly
Air brake systems consist of which three components?
Service, parking and emergency brakes
Parking and emergency brakes
Standard, parking and emergency brakes
Duty, parking and emergency brakes
Question 2
46% answer correctly
How can you test the low pressure warning signal?
Put on the parking brake and continuously pump the brakes
Kink the service line
Release the parking brake and continuously pump the brakes
Push the low pressure warning signal test button
Question 3
43% answer correctly
For vehicles that use air brakes, emergency and parking brakes:
Can only be air brakes
Must be mechanical brakes
Must be a combination of mechanical and air brakes
Are not required