Air Brakes #2
Air Brakes Endorsement Test | Utah 2025 #2 Page 4 of 4
Train for FREE online with our Utah 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 UT 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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19 . A safety valve is set to open at ____ pounds per square inch (psi).
The safety valve protects air tanks and the rest of an air brake system from accumulating too much air pressure. The safety valve is usually set to open at 150 psi.
20 . In a dual air brake system, air pressure should build from 85 to 100 psi within ____ seconds.
When inspecting a vehicle with a dual air brake system, you should wait for air pressure to build from 85 to 100 psi in both the primary and secondary systems. This should take about 45 seconds.
21 . Manual air tank drains should be:
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
22 . Failing to drain air tanks could result in:
In an air brake system, the air tanks must be periodically drained to remove accumulations of water and compressor oil. If water is not removed, it could freeze in cold weather and cause brake failure.
23 . During a walk-around inspection, ensure there are no cracks on the brake drums that are more than ____ of the width of the friction area.
One tenth
Before beginning a trip, it is important to check the brake drums during your walk-around inspection. It is unsafe to drive if any brake drum has a crack more than one half of the width of the friction area.
24 . How is the parking brake released?
By tapping the accelerator twice
In vehicles with air brakes, the parking brake is controlled by a knob. The knob is pulled out to apply the brakes, and pushed in to release them.
25 . Most heavy-duty vehicles use:
Quadruple air brake systems.
Most heavy-duty vehicles use dual air brake systems. A dual system has two separate air brake systems with a single set of controls.
See the exact questions that will be on the 2025 Utah DMV exam.
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Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
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2025 Utah | Frequently Asked Questions
To secure a CDL Bus endorsement in Utah, you must first have a Commercial Driver's License (CDL). Then, pass the Passenger Vehicle written test. After passing the test, you have to complete a training course and pass a skills test in the type of vehicle you will be driving. Lastly, pay the required fees.
To obtain a CDL Bus license in Utah, you need a valid driver's license, be at least 21 years old, and pass a vision test. You must also complete a CDL application and pass the General Knowledge test, Passenger Transport test, and School Bus Endorsement test if applicable. Lastly, you must pass a pre-trip vehicle inspection and a skills test.
Yes, specific training is necessary for a CDL Bus endorsement in Utah. After passing the Passenger Vehicle written test, you must complete a training course that includes both classroom and hands-on driving instruction. This training is designed to provide you with the skills needed to safely operate a bus and handle passengers.
CDL Bus licenses in Utah fall under three classifications: Class A, B, and C. Class A is for vehicles with a combined weight over 26,001 lbs where the towed vehicle exceeds 10,000 lbs. Class B is for single or combination vehicles where the single vehicle exceeds 26,001 lbs. Class C is for vehicles designed to transport 16 or more passengers, including the driver.
No, you cannot use your personal vehicle for the CDL Bus driving test. The vehicle you use must match the class of CDL you're applying for. So, for a bus endorsement, you'll need to test in a commercial bus. This ensures you can handle the specific vehicle type in real-world scenarios.
During the CDL Bus driving test in Utah, you will be evaluated on various skills including pre-trip vehicle inspection, basic vehicle control, and on-road driving. This includes maneuvers like stopping at designated points, backing up in a straight line or into a docking area, turning, merging and exiting traffic, and navigating intersections or railway crossings.
Yes, to obtain a CDL Bus endorsement in Utah, you must pass a Department of Transportation (DOT) physical examination. This exam ensures you're physically capable of safely operating a commercial vehicle. It covers aspects like vision, hearing, blood pressure, and checks for conditions like diabetes or heart disease that could interfere with driving safety.
No, it is illegal to transport passengers in a commercial vehicle without a valid CDL Bus endorsement in Utah. Driving a commercial vehicle, such as a bus, without the appropriate license can result in hefty fines, license suspension, or even jail time. Always ensure you have the correct endorsements for the vehicle you're operating.
Yes, the CDL Bus endorsement can be added to your existing CDL license in Utah. You'll need to pass the passenger endorsement knowledge test and a skills test in the vehicle group you wish to drive. However, you won't need to apply for a new CDL license altogether.
Yes, there are restrictions for drivers with a CDL Bus endorsement in Utah. Drivers must not have any serious traffic violations within the past two years. They are also subject to random drug and alcohol testing. Moreover, they must comply with federal regulations regarding hours of service, which limit the number of hours they can drive without rest.
