CDL Air Brakes Practice Test Results

Question 1
68% answer correctly
What are spring brakes used for?
Cab brakes
Emergency and parking brakes
Trailer brakes
Air brakes
Question 2
35% answer correctly
Automatic air tank drains should be emptied how often?
Daily
Monthly
Weekly
Never
Question 3
90% answer correctly
What is the most common type of air brake?
S-cam drum brake
Wedge brake
C-clamp drum brake
Disc brake