1|Page
Texas CDL Air Brakes (Latest Update)
Questions and Verified Answers | 100% Correct |
Grade A+
Air brake systems combine what three different systems? - ..(ANSWER)...Service
brakes, parking brakes and emergency brakes.
When should you drain the air tanks? - ..(ANSWER)...After every working day.
Why drain water from the compressed air tanks? - ..(ANSWER)...Water can freeze
in cold weather and cause brake failure.
Air brake equipped vehicles must have: - ..(ANSWER)...A supply pressure gauge
and warning signal when psi drops below 60.
What can legally hold a parking or emergency brake in position for a truck, truck
tractor or bus? - ..(ANSWER)...Spring pressure.
What makes the total stopping distance for air brakes longer than that for
hydraulic brakes? - ..(ANSWER)...Brake lag distance.
The first thing you should do when the low air pressure warning comes on? -
..(ANSWER)...Stop and safely park ASAP.
The braking power of the spring brakes: - ..(ANSWER)...Depends on the
adjustment of the service brakes.
, 2|Page
The air compressor governor controls what? - ..(ANSWER)...When air is pumped
into the air tanks.
The application pressure gauge shows the driver how much pressure: -
..(ANSWER)...Is being applied to the brakes.
When you apply pressure to the brake pedal, you are... - ..(ANSWER)...Pushing
against a spring and against air pressure to the brakes.
The air compressor is connected to the engine through... - ..(ANSWER)...Gears or a
V-belt
Which type of brake is the most common in commercial vehicles? -
..(ANSWER)...S-cam brake
An application pressure gauge... - ..(ANSWER)...Shows how much air pressure you
are applying to the brakes.
All vehicles with air brakes are required to have a low pressure warning signal.
This could be... - ..(ANSWER)...A red light, wig wag mechanical arm or a buzzer.
To test service brakes you should... - ..(ANSWER)...Release the parking brake,
move forward slowly and depress brakes.
Texas CDL Air Brakes (Latest Update)
Questions and Verified Answers | 100% Correct |
Grade A+
Air brake systems combine what three different systems? - ..(ANSWER)...Service
brakes, parking brakes and emergency brakes.
When should you drain the air tanks? - ..(ANSWER)...After every working day.
Why drain water from the compressed air tanks? - ..(ANSWER)...Water can freeze
in cold weather and cause brake failure.
Air brake equipped vehicles must have: - ..(ANSWER)...A supply pressure gauge
and warning signal when psi drops below 60.
What can legally hold a parking or emergency brake in position for a truck, truck
tractor or bus? - ..(ANSWER)...Spring pressure.
What makes the total stopping distance for air brakes longer than that for
hydraulic brakes? - ..(ANSWER)...Brake lag distance.
The first thing you should do when the low air pressure warning comes on? -
..(ANSWER)...Stop and safely park ASAP.
The braking power of the spring brakes: - ..(ANSWER)...Depends on the
adjustment of the service brakes.
, 2|Page
The air compressor governor controls what? - ..(ANSWER)...When air is pumped
into the air tanks.
The application pressure gauge shows the driver how much pressure: -
..(ANSWER)...Is being applied to the brakes.
When you apply pressure to the brake pedal, you are... - ..(ANSWER)...Pushing
against a spring and against air pressure to the brakes.
The air compressor is connected to the engine through... - ..(ANSWER)...Gears or a
V-belt
Which type of brake is the most common in commercial vehicles? -
..(ANSWER)...S-cam brake
An application pressure gauge... - ..(ANSWER)...Shows how much air pressure you
are applying to the brakes.
All vehicles with air brakes are required to have a low pressure warning signal.
This could be... - ..(ANSWER)...A red light, wig wag mechanical arm or a buzzer.
To test service brakes you should... - ..(ANSWER)...Release the parking brake,
move forward slowly and depress brakes.
