10/22/24, 11:35 PM TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM AND STUDY GUIDE NEWEST 2024 ACTUAL EXAM 60 QUESTIONS AN…
TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM
AND STUDY GUIDE NEWEST 2024 ACTUAL EXAM
60 QUESTIONS AND CORRECT DETAILED
ANSWERS
Terms in this set (68)
Use compressed air to make the brakes work- good
Air Brakes...
for stopping large and heavy vehicles
3 Different Braking Service Brake, Parking Brake, and Emergency Brake
Systems
applies and releases the brakes by using the brake
Service Brake System
pedal during normal driving
Applies and releases the parking brakes when you
Parking Brake System
use the parking brake control
Uses parts of the service and parking brake system to
Emergency Brake System
stop the vehicle in event of a brake system failure.
Air Compressor pumps air into the storage tanks
How is the air compressor Through gears or a v-belt.
connected to the engine?
If the compressor has its check the oil every day before driving
own oil supply
Controls when the air compressor will pump air into
Air Compressor Governor
the air storage tanks
Air Tank pressure cut out 125 psi (pounds per square inch)
level
https://quizlet.com/961106077/texas-cdl-air-brakes-exam-practice-exam-and-study-guide-newest-2024-actual-exam-60-questions-and-correct-detailed… 1/7
, 10/22/24, 11:35 PM TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM AND STUDY GUIDE NEWEST 2024 ACTUAL EXAM 60 QUESTIONS AN…
When air tank pressure the governor stops the compressor from pumping air
rises to the "cut-out" level
Air Tank pressure cut in 100 psi
level
When does the When the air tank pressure falls to the cut in level
compressor start pumping
again?
Hold Compressed Air- enough air to allow the brakes
Air storage tanks
to be used several times
Allows the storage tanks to be drained of oil and
Air Tank Drains
water, to prevent frozen air lines/brake failure.
What is bad for the air compressed air usually has some water and some
brake system? compressor oil in it
Manually and Two ways to drain air tanks- drain valve in bottom
Automatically
Manually draining Quarter turn or pulling a cable- every day
Automatic Draining Water and oil are automatically drained for you
Automatic tank drains also electric heating devices- prevent freezing of drain in
have cold weather
puts alcohol into the air system to reduce the risk of
ice
Alcohol Evaporator
-Check and fill up as necessary, every day in cold
weather
protects the tank and system from too much pressure
Safety Valve
usually set to open at 150 psi
Brake Pedal AKA foot valve or treadle valve
Pushing down brake pedal applies more air pressure
harder
Used at each wheel. Most common being the S-Cam
Foundation Brakes
drum Brake
https://quizlet.com/961106077/texas-cdl-air-brakes-exam-practice-exam-and-study-guide-newest-2024-actual-exam-60-questions-and-correct-detailed… 2/7
TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM
AND STUDY GUIDE NEWEST 2024 ACTUAL EXAM
60 QUESTIONS AND CORRECT DETAILED
ANSWERS
Terms in this set (68)
Use compressed air to make the brakes work- good
Air Brakes...
for stopping large and heavy vehicles
3 Different Braking Service Brake, Parking Brake, and Emergency Brake
Systems
applies and releases the brakes by using the brake
Service Brake System
pedal during normal driving
Applies and releases the parking brakes when you
Parking Brake System
use the parking brake control
Uses parts of the service and parking brake system to
Emergency Brake System
stop the vehicle in event of a brake system failure.
Air Compressor pumps air into the storage tanks
How is the air compressor Through gears or a v-belt.
connected to the engine?
If the compressor has its check the oil every day before driving
own oil supply
Controls when the air compressor will pump air into
Air Compressor Governor
the air storage tanks
Air Tank pressure cut out 125 psi (pounds per square inch)
level
https://quizlet.com/961106077/texas-cdl-air-brakes-exam-practice-exam-and-study-guide-newest-2024-actual-exam-60-questions-and-correct-detailed… 1/7
, 10/22/24, 11:35 PM TEXAS CDL AIR BRAKES EXAM, PRACTICE EXAM AND STUDY GUIDE NEWEST 2024 ACTUAL EXAM 60 QUESTIONS AN…
When air tank pressure the governor stops the compressor from pumping air
rises to the "cut-out" level
Air Tank pressure cut in 100 psi
level
When does the When the air tank pressure falls to the cut in level
compressor start pumping
again?
Hold Compressed Air- enough air to allow the brakes
Air storage tanks
to be used several times
Allows the storage tanks to be drained of oil and
Air Tank Drains
water, to prevent frozen air lines/brake failure.
What is bad for the air compressed air usually has some water and some
brake system? compressor oil in it
Manually and Two ways to drain air tanks- drain valve in bottom
Automatically
Manually draining Quarter turn or pulling a cable- every day
Automatic Draining Water and oil are automatically drained for you
Automatic tank drains also electric heating devices- prevent freezing of drain in
have cold weather
puts alcohol into the air system to reduce the risk of
ice
Alcohol Evaporator
-Check and fill up as necessary, every day in cold
weather
protects the tank and system from too much pressure
Safety Valve
usually set to open at 150 psi
Brake Pedal AKA foot valve or treadle valve
Pushing down brake pedal applies more air pressure
harder
Used at each wheel. Most common being the S-Cam
Foundation Brakes
drum Brake
https://quizlet.com/961106077/texas-cdl-air-brakes-exam-practice-exam-and-study-guide-newest-2024-actual-exam-60-questions-and-correct-detailed… 2/7
