CDL Air Brakes Practice Test Results

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