Texas CDL Air Brakes
Study online at https://quizlet.com/_6s9bvs
1. Air Brakes... Use compressed air to make the brakes work- good for stopping large and heavy
vehicles
2. 3 Different Brak- Service Brake, Parking Brake, and Emergency Brake
ing Systems
3. Service Brake applies and releases the brakes by using the brake pedal during normal driving
System
4. Parking Brake Applies and releases the parking brakes when you use the parking brake control
System
5. Emergency Brake Uses parts of the service and parking brake system to stop the vehicle in event of
System a brake system failure.
6. Air Compressor pumps air into the storage tanks
7. How is the air Through gears or a v-belt.
compressor con-
nected to the en-
gine?
8. If the compressor check the oil every day before driving
has its own oil
supply
9. Air Compressor Controls when the air compressor will pump air into the air storage tanks
Governor
10. Air Tank pressure 125 psi (pounds per square inch)
cut out level
11. the governor stops the compressor from pumping air
1/8
, Texas CDL Air Brakes
Study online at https://quizlet.com/_6s9bvs
When air tank
pressure rises to
the "cut-out" level
12. Air Tank pressure 100 psi
cut in level
13. When does the When the air tank pressure falls to the cut in level
compressor start
pumping again?
14. Air storage tanks Hold Compressed Air- enough air to allow the brakes to be used several times
15. Air Tank Drains Allows the storage tanks to be drained of oil and water, to prevent frozen air
lines/brake failure.
16. What is bad for compressed air usually has some water and some compressor oil in it
the air brake sys-
tem?
17. Manually and Au- Two ways to drain air tanks- drain valve in bottom
tomatically
18. Manually drain- Quarter turn or pulling a cable- every day
ing
19. Automatic Drain- Water and oil are automatically drained for you
ing
20. Automatic tank electric heating devices- prevent freezing of drain in cold weather
drains also have
21. Alcohol Evapora- puts alcohol into the air system to reduce the risk of ice
tor -Check and fill up as necessary, every day in cold weather
2/8
Study online at https://quizlet.com/_6s9bvs
1. Air Brakes... Use compressed air to make the brakes work- good for stopping large and heavy
vehicles
2. 3 Different Brak- Service Brake, Parking Brake, and Emergency Brake
ing Systems
3. Service Brake applies and releases the brakes by using the brake pedal during normal driving
System
4. Parking Brake Applies and releases the parking brakes when you use the parking brake control
System
5. Emergency Brake Uses parts of the service and parking brake system to stop the vehicle in event of
System a brake system failure.
6. Air Compressor pumps air into the storage tanks
7. How is the air Through gears or a v-belt.
compressor con-
nected to the en-
gine?
8. If the compressor check the oil every day before driving
has its own oil
supply
9. Air Compressor Controls when the air compressor will pump air into the air storage tanks
Governor
10. Air Tank pressure 125 psi (pounds per square inch)
cut out level
11. the governor stops the compressor from pumping air
1/8
, Texas CDL Air Brakes
Study online at https://quizlet.com/_6s9bvs
When air tank
pressure rises to
the "cut-out" level
12. Air Tank pressure 100 psi
cut in level
13. When does the When the air tank pressure falls to the cut in level
compressor start
pumping again?
14. Air storage tanks Hold Compressed Air- enough air to allow the brakes to be used several times
15. Air Tank Drains Allows the storage tanks to be drained of oil and water, to prevent frozen air
lines/brake failure.
16. What is bad for compressed air usually has some water and some compressor oil in it
the air brake sys-
tem?
17. Manually and Au- Two ways to drain air tanks- drain valve in bottom
tomatically
18. Manually drain- Quarter turn or pulling a cable- every day
ing
19. Automatic Drain- Water and oil are automatically drained for you
ing
20. Automatic tank electric heating devices- prevent freezing of drain in cold weather
drains also have
21. Alcohol Evapora- puts alcohol into the air system to reduce the risk of ice
tor -Check and fill up as necessary, every day in cold weather
2/8
