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CDL Air Brakes Practice Test Results
Question 1
76% answer correctly
In what type of climate would an alcohol evaporator be useful?
In a warm climate
In all climates
In a tropical climate
In a cold 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
Are not required
Can only be air brakes
Question 3
89% answer correctly
Manual air tank drains should be emptied how often?
Monthly
Weekly
Hourly
Daily