CDL Air Brakes Practice Test Results

Question 1
76% answer correctly
In what type of climate would an alcohol evaporator be useful?
In a tropical climate
In all climates
In a cold climate
In a warm climate
Question 2
43% answer correctly
For vehicles that use air brakes, emergency and parking brakes:
Must be a combination of mechanical and air brakes
Must be mechanical brakes
Can only be air brakes
Are not required
Question 3
89% answer correctly
Manual air tank drains should be emptied how often?
Monthly
Daily
Weekly
Hourly