CDL Air Brakes Practice Test Results

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