CDL Air Brakes Practice Test Results

Question 1
56% answer correctly
You should be in the proper gear before starting down a hill because:
To keep the brakes cool
It`s difficult to change gears while going downhill
The use of brakes is only a supplement to the braking effect of the engine
To keep your speed under control
Question 2
72% answer correctly
Spring brakes and air brakes should __________ be used together.
Sparingly
Frequently
Never
Always
Question 3
89% answer correctly
Manual air tank drains should be emptied how often?
Daily
Weekly
Hourly
Monthly