Texas CDL Air Brakes Exam Questions with Correct Answers and
Answers with Verified Solutions | Latest 2026 Update
Q: Air brakes should be drained... 1. At the end of each working day. 2. To keep
sludge from
Answer:
clogging system valves.
3. Manually when automatic devices fail.
Fanning air brakes... Decreases the air pressure.
If you air compressor stops working... You'll still have pressure left in the tanks.
The governor allows the air to star pumping aging when it reaches the cut in level or
around...
100 psi
You should not use the parking brakes... When the brakes are hot.
The brake drums or discs... Must not have cracks longer than half the width of the
friction
area.
, Q: Slack adjusters... Can be adjusted manually or automatically.
Answer:
To determine if slack adjusters need adjustment... Release big the service and
parking
brakes.
An air tank is equipped with a drain valve to remove... Water and oil.
The governor stops pumping air when it reaches the cut out level, or around... 125 psi
The air compressor governor controls... When the air compressor pumps air into the
storage
tanks.
A dual air brake system... Has two brake systems and one set of controls.
An emergency brake... Is required on commercial vehicles, must be held by
mechanical
force, could be activated by loss of air pressure.
To check the slack adjusters on s-can brakes, you should ... Wear gloves and pull
hard on
each adjuster.
To test low pressure warning... 1. Shut of engine.
2. Turn on electrical power.
3. Step on and off brake pedal to reduce to 60 psi.
With dual air systems, the air pressure should build... From 85 to 100 psi in 45
seconds n
A fully charged air system typically has ____ psi. 125
Answers with Verified Solutions | Latest 2026 Update
Q: Air brakes should be drained... 1. At the end of each working day. 2. To keep
sludge from
Answer:
clogging system valves.
3. Manually when automatic devices fail.
Fanning air brakes... Decreases the air pressure.
If you air compressor stops working... You'll still have pressure left in the tanks.
The governor allows the air to star pumping aging when it reaches the cut in level or
around...
100 psi
You should not use the parking brakes... When the brakes are hot.
The brake drums or discs... Must not have cracks longer than half the width of the
friction
area.
, Q: Slack adjusters... Can be adjusted manually or automatically.
Answer:
To determine if slack adjusters need adjustment... Release big the service and
parking
brakes.
An air tank is equipped with a drain valve to remove... Water and oil.
The governor stops pumping air when it reaches the cut out level, or around... 125 psi
The air compressor governor controls... When the air compressor pumps air into the
storage
tanks.
A dual air brake system... Has two brake systems and one set of controls.
An emergency brake... Is required on commercial vehicles, must be held by
mechanical
force, could be activated by loss of air pressure.
To check the slack adjusters on s-can brakes, you should ... Wear gloves and pull
hard on
each adjuster.
To test low pressure warning... 1. Shut of engine.
2. Turn on electrical power.
3. Step on and off brake pedal to reduce to 60 psi.
With dual air systems, the air pressure should build... From 85 to 100 psi in 45
seconds n
A fully charged air system typically has ____ psi. 125
