Air Brakes #2
Air Brakes Endorsement Test | Nevada 2025 #2 Page 2 of 4
Train for FREE online with our Nevada CDL air brake test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a NV Class A/Class B driver license in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that the requirements for CDL may vary from state to state.
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7 . Air pressure should build up in a single air system within:
One minute.
In a vehicle with a single air brake system, after the engine is at operating rpms, the pressure in the air system should generally build from 50 to 90 psi within three minutes.
8 . Air tank drains:
Clean the air in the passenger compartment.
In an air brake system, air tanks have drains to remove accumulations of water and compressor oil. Allowing water and oil to accumulate in the system could cause damage to the brakes. Manually operated drains should be used daily.
9 . Test the low pressure warning signal:
Before every trip.
It is essential that your low pressure warning light function properly. After allowing the system to charge, you can test the warning signal by rapidly applying and releasing the brake pedal. This will release air from the braking system and the warning signal should come on when pressure drops to a dangerous level.
10 . The emergency brake system uses:
Only parts unique to the emergency brake system.
In an air brake system, there are three different braking systems: a service brake system, a parking brake system, and an emergency brake system. The emergency brake system uses parts of both the parking and service brake systems.
11 . What color is the low air pressure warning light?
Purple
A low air pressure warning signal is required in vehicles with air brakes. The warning light is usually red and may be accompanied by a buzzer.
12 . What should happen before the air pressure in an air brake system tank falls below 55 psi?
The low air pressure warning signal must activate before the air supply pressure drops below 55 psi in the air tank. If the warning signal does not turn on when being tested during an inspection, the vehicle is not safe to drive.
See the exact questions that will be on the 2025 Nevada DMV exam.
99.2% of people who use the cheat sheet pass the FIRST TIME
Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
Cameron tells us how he purchased the CDL exam, and found it to be a useful tool which helped him pass the exam and find a job.
2025 Nevada | Frequently Asked Questions
To secure a Commercial Driver's License (CDL) Bus endorsement in Nevada, you must already have a valid CDL. Next, pass the passenger transport test and the school bus endorsement test if applicable. Complete a federal background check, submit a medical examiner's certificate, and pass a skills test in the type of bus you'll be driving.
To obtain a CDL Bus license in Nevada, you need a valid driver's license and must be at least 21 years old. You have to pass a series of written exams on general knowledge, passenger transport, and air brakes (if applicable). Then, pass the pre-trip vehicle inspection, basic vehicle control, and on-road driving tests. Finally, submit a completed medical examiner's certificate.
While Nevada doesn't explicitly require specific training for a CDL Bus endorsement, it's highly recommended. Many applicants attend professional training programs to prepare for the written and skills tests. Practical experience driving similar vehicles is beneficial. Additionally, you must pass a physical exam and meet certain vision and hearing requirements to ensure you can safely operate a bus.
CDL Bus licenses fall into three classifications. Class A is for vehicles with a combined weight over 26,001 lbs, where the towed vehicle is over 10,000 lbs. Class B is for single or combination vehicles where the single vehicle weighs over 26,001 lbs, or tows a vehicle not exceeding 10,000 lbs. Class C is for transporting 16 or more passengers (including the driver) or hazardous materials.
No, you cannot use your personal vehicle for the CDL Bus driving test in Nevada. The vehicle used must represent the type of vehicle you will be driving with your CDL. For a bus endorsement, you must take the test in a bus-like vehicle. This ensures that you can handle and operate the specific type of commercial vehicle safely.
The CDL Bus driving test evaluates several skills. These include pre-trip vehicle inspection, basic vehicle control (backing, moving forward, stopping, and turning), and on-road driving. On-road driving assesses your ability to handle intersections, railway crossings, curves, and more. You'll also be evaluated on how well you manage traffic and emergencies, and your knowledge of bus safety rules.
Yes, there are additional medical prerequisites for a CDL Bus endorsement. You must pass a Department of Transportation (DOT) physical examination every two years. The exam will test your vision, hearing, blood pressure and will check for diabetes and other potential health issues that could affect your ability to safely operate a commercial vehicle.
No, it is not permissible to transport passengers without a valid CDL Bus endorsement in Nevada. The law requires anyone operating a vehicle designed to carry 16 or more passengers, including the driver, to hold a Commercial Driver's License (CDL) with a passenger (P) endorsement. Violations can lead to serious penalties.
Yes, a CDL Bus endorsement can be added to your existing license in Nevada. However, you're required to pass a knowledge test and a skills test in a vehicle representative of the class of bus you wish to drive. After passing these tests, the endorsement will be added to your CDL.
Yes, there are restrictions for drivers with a CDL Bus endorsement in Nevada. Drivers must maintain a clean driving record, pass regular physical examinations, and comply with federal hours-of-service regulations. Additionally, they must not have any disqualifying criminal offenses and must be at least 21 years old to drive commercially across state lines.
