TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM AND STUDY GUIDE
NEWEST 2024 ACTUAL EXAM 60 QUESTIONS AND CORRECT DETAILE
ANSWERS
Study online at https://quizlet.com/_fw7u71
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
System during normal driving
4. Parking Brake Applies and releases the parking brakes when you use the
System parking brake control
5. Emergency Uses parts of the service and parking brake system to stop
Brake System the vehicle in event of 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 compres- check the oil every day before driving
sor has its own
oil supply
9. Air Compressor Controls when the air compressor will pump air into the air
Governor storage tanks
10. Air Tank pressure 125 psi (pounds per square inch)
cut out level
11. When air tank the governor stops the compressor from pumping air
pressure rises to
the "cut-out" lev-
el
12. 100 psi
1/8
, TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM AND STUDY GUIDE
NEWEST 2024 ACTUAL EXAM 60 QUESTIONS AND CORRECT DETAILE
ANSWERS
Study online at https://quizlet.com/_fw7u71
Air Tank pressure
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 com-
the air brake sys- pressor oil in it
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
drains also have weather
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
22. Safety Valve protects the tank and system from too much pressure
usually set to open at 150 psi
23. Brake Pedal AKA foot valve or treadle valve
24. applies more air pressure
2/8
NEWEST 2024 ACTUAL EXAM 60 QUESTIONS AND CORRECT DETAILE
ANSWERS
Study online at https://quizlet.com/_fw7u71
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
System during normal driving
4. Parking Brake Applies and releases the parking brakes when you use the
System parking brake control
5. Emergency Uses parts of the service and parking brake system to stop
Brake System the vehicle in event of 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 compres- check the oil every day before driving
sor has its own
oil supply
9. Air Compressor Controls when the air compressor will pump air into the air
Governor storage tanks
10. Air Tank pressure 125 psi (pounds per square inch)
cut out level
11. When air tank the governor stops the compressor from pumping air
pressure rises to
the "cut-out" lev-
el
12. 100 psi
1/8
, TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM AND STUDY GUIDE
NEWEST 2024 ACTUAL EXAM 60 QUESTIONS AND CORRECT DETAILE
ANSWERS
Study online at https://quizlet.com/_fw7u71
Air Tank pressure
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 com-
the air brake sys- pressor oil in it
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
drains also have weather
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
22. Safety Valve protects the tank and system from too much pressure
usually set to open at 150 psi
23. Brake Pedal AKA foot valve or treadle valve
24. applies more air pressure
2/8
