CA CDL AIR BRAKES TEST LATEST 2026 UPDATED QUESTIONS
AND VERIFIED 100% SOLUTIONS (2026/2027) |A+ GRADED
|GUARANTEED PASS
What is emergency controlled braking? - Answers -You apply the brakes as hard as you can
without locking the wheels
When you apply the bakes, the brake shoes/linings are pressed against the: - Answers -Brake
drum or disc
Your vehicle has a dual air brake system. If a low air pressure warning comes on for the
secondary system, you should: - Answers -Stop the vehicle and continue only when the system
is fixed
Your truck has a properly functioning dual air brake system and minimum size air tanks. The air
pressure should build from 85 to 100 psi within: - Answers -45 seconds
The safety valve is usually set to reduce air pressure at: - Answers -150 psi
If your vehicle has an alcohol evaporator, it is there to: - Answers -Reduce the risk of ice in air
brake valves in cold weather
1|Page
, A truck with air brakes going 55 mph would require a stopping distance of: - Answers -More
than 300 feet
The application pressure gauge shows how much air pressure you: - Answers -Are applying to
the brakes
The braking power of the spring brakes: - Answers -Depends on the service brakes being in
adjustment
The air brake system for a straight truck or bus should not leak at a rate of more than _____ per
minute with the engine off and the brakes released. - Answers -2 psi
Total stopping distance for vehicles with air brakes is longer than that for vehicles with hydraulic
brakes due to: - Answers -Brake lag distance
Your truck or bus has a dual air brake system. If a low air pressure warning comes on for only
one system, what should you do? - Answers -Stop and safely park. Continue only after the
system is fixed
Which of these is not a proper time to apply the parking brakes? - Answers -When you come
down a steep grade and your brakes are very hot
2|Page
AND VERIFIED 100% SOLUTIONS (2026/2027) |A+ GRADED
|GUARANTEED PASS
What is emergency controlled braking? - Answers -You apply the brakes as hard as you can
without locking the wheels
When you apply the bakes, the brake shoes/linings are pressed against the: - Answers -Brake
drum or disc
Your vehicle has a dual air brake system. If a low air pressure warning comes on for the
secondary system, you should: - Answers -Stop the vehicle and continue only when the system
is fixed
Your truck has a properly functioning dual air brake system and minimum size air tanks. The air
pressure should build from 85 to 100 psi within: - Answers -45 seconds
The safety valve is usually set to reduce air pressure at: - Answers -150 psi
If your vehicle has an alcohol evaporator, it is there to: - Answers -Reduce the risk of ice in air
brake valves in cold weather
1|Page
, A truck with air brakes going 55 mph would require a stopping distance of: - Answers -More
than 300 feet
The application pressure gauge shows how much air pressure you: - Answers -Are applying to
the brakes
The braking power of the spring brakes: - Answers -Depends on the service brakes being in
adjustment
The air brake system for a straight truck or bus should not leak at a rate of more than _____ per
minute with the engine off and the brakes released. - Answers -2 psi
Total stopping distance for vehicles with air brakes is longer than that for vehicles with hydraulic
brakes due to: - Answers -Brake lag distance
Your truck or bus has a dual air brake system. If a low air pressure warning comes on for only
one system, what should you do? - Answers -Stop and safely park. Continue only after the
system is fixed
Which of these is not a proper time to apply the parking brakes? - Answers -When you come
down a steep grade and your brakes are very hot
2|Page
