Texas CDL Air Brakes Section 5 Exam
2025 Questions and Answers
You should know that your brakes are fading when? - --CORRECT ANSWER--
You have to push harder on the brake pedal to control you down hill speed
If the spring brakes are on when should you push the brake pedal? - --CORRECT
ANSWER--Never
Repeatedly pressing and releasing (fanning) the brake pedal may result in ? - --
CORRECT ANSWER--A loss of air pressure
The driver must be able to see a low air pressure warning which comes on before
pressure in the service air tank falls below_____PSI? - --CORRECT ANSWER--
60psi
If your truck or bus has dual parking control valves you can use pressure from a
separate tank. - --CORRECT ANSWER--to release the emergency/spring/parking
brakes to move a short distance.
The brake pedal in a air brake system. - --CORRECT ANSWER--controls the air
pressure applied to put on the brakes
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, To check the free play of manual slack adjusters of s-cam brakes you should? - --
CORRECT ANSWER--park on level ground, chock the wheels release the parking
brakes and pull on the slack adjusters
Parking or emergency brakes on trucks or buses can be legally held on by _______
pressure. - --CORRECT ANSWER--Spring
Emergency stab braking is when you - --CORRECT ANSWER--brake and hard as
you can, then release the brakes when the wheels lock up and put on the brakes
again when the wheels start rolling
The most common type of foundation brake found on heavy vehicles is the - --
CORRECT ANSWER--S-Cam
If your truck has dual air brake system and one of the systems is low on pressure -
--CORRECT ANSWER--either the front or rear brakes will not be fully functional
The most important thing to do when a low pressure warning light comes on is to
- --CORRECT ANSWER--stop and safely park as soon as possible
With air brake equipped vehicles, the parking brakes should be used - --
CORRECT ANSWER--any time the vehicle is parked
The air compressor Governor controls - --CORRECT ANSWER--when air is
pumped into the tanks
The stop light switch - --CORRECT ANSWER--turns on the brake light to warn
other drivers behind you
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
2025 Questions and Answers
You should know that your brakes are fading when? - --CORRECT ANSWER--
You have to push harder on the brake pedal to control you down hill speed
If the spring brakes are on when should you push the brake pedal? - --CORRECT
ANSWER--Never
Repeatedly pressing and releasing (fanning) the brake pedal may result in ? - --
CORRECT ANSWER--A loss of air pressure
The driver must be able to see a low air pressure warning which comes on before
pressure in the service air tank falls below_____PSI? - --CORRECT ANSWER--
60psi
If your truck or bus has dual parking control valves you can use pressure from a
separate tank. - --CORRECT ANSWER--to release the emergency/spring/parking
brakes to move a short distance.
The brake pedal in a air brake system. - --CORRECT ANSWER--controls the air
pressure applied to put on the brakes
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, To check the free play of manual slack adjusters of s-cam brakes you should? - --
CORRECT ANSWER--park on level ground, chock the wheels release the parking
brakes and pull on the slack adjusters
Parking or emergency brakes on trucks or buses can be legally held on by _______
pressure. - --CORRECT ANSWER--Spring
Emergency stab braking is when you - --CORRECT ANSWER--brake and hard as
you can, then release the brakes when the wheels lock up and put on the brakes
again when the wheels start rolling
The most common type of foundation brake found on heavy vehicles is the - --
CORRECT ANSWER--S-Cam
If your truck has dual air brake system and one of the systems is low on pressure -
--CORRECT ANSWER--either the front or rear brakes will not be fully functional
The most important thing to do when a low pressure warning light comes on is to
- --CORRECT ANSWER--stop and safely park as soon as possible
With air brake equipped vehicles, the parking brakes should be used - --
CORRECT ANSWER--any time the vehicle is parked
The air compressor Governor controls - --CORRECT ANSWER--when air is
pumped into the tanks
The stop light switch - --CORRECT ANSWER--turns on the brake light to warn
other drivers behind you
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
