Knowledge Test Class A #1
Class A Driving Test | Utah 2025 #1 Page 3 of 7
Train for FREE online with our Utah class A license 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 CDL class A permit 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 CDL class A requirements may vary from state to state.
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15 . What must be on an air tank in an air-braked vehicle?
An oxidizer
All air tanks on air-braked vehicles must have one-way check valves located between the air compressor and the first reservoir. This prevents air from flowing out in the event of a leak.
16 . Examples of serious traffic violations include each of the following offenses, except:
Not stopping behind the stop line at a stop sign.
Traffic violations classified as "serious" include excessive speeding, reckless driving, operating a CMV without a valid CDL, following other vehicles too closely, and improper lane usage. Consequences for multiple serious traffic violations can result in license disqualification.
17 . When passing another vehicle, you should:
Wave to other drivers.
It is always safest to assume that other drivers, bicyclists, and pedestrians don't see you. Be prepared for the possibility that they may suddenly move into your path. It may be safe to lightly tap your horn or flash your lights as you pass.
18 . Header boards:
Front-end header boards, also known as "headache racks," protect the driver from cargo moving in the event of a crash or emergency stop.
19 . A low air pressure warning signal should activate:
When tank pressure falls below 5 psi.
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
20 . The minimum age someone may be to apply for a CDL is 18 years old.
You must be at least 18 years old to apply for a CDL. However, you must be at least 21 years old to drive in interstate commerce, as well as to have a hazardous materials, passenger, or school bus endorsement.
21 . If a CMV driver operates a CMV with a detectable blood alcohol concentration (BAC) that is lower than 0.04 percent, they will be:
Told to drive home.
If you are found to be operating a CMV with any detectable amount of alcohol in your system, but you are still below the legal limit of 0.04 percent, you will be placed out-of-service for 24 hours. It is both illegal and dangerous to operate a motor vehicle while under the influence of alcohol.
2025 Utah | Frequently Asked Questions
A CDL Class A license in Utah is defined as a commercial driver's license that allows the holder to operate any combination of vehicles with a gross combination weight rating (GCWR) of 26,001 pounds or more, provided the towed vehicle(s) weigh more than 10,000 pounds. It includes vehicles like tractor-trailers, truck and trailer combinations, and flatbeds.
A Class A CDL license allows you to operate a variety of large vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds. This license is also required for operating vehicles that tow trailers or other vehicles with a GVWR of over 10,000 pounds.
To obtain a Class A CDL license in Utah, you must be at least 18 years old for intrastate driving, or 21 for interstate. You need a valid Utah driver’s license, pass a vision exam, and obtain a medical certificate. You must also pass written knowledge tests and a three-part skills test, which includes a pre-trip vehicle inspection, a basic controls test, and a driving test.
In Utah, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate (within the state) driving. However, to drive interstate (across state lines), transport hazardous materials, or drive a school bus, you must be at least 21 years old.
Specific endorsements are not required for a Class A CDL license, but they can provide additional driving privileges. Endorsements include: H (Hazardous Materials), N (Tank Vehicles), P (Passenger Transport), S (School Buses), T (Double/Triple Trailers), and X (Combination of Tank Vehicle and Hazardous Materials). Each endorsement requires passing a specific knowledge test.
The Class A CDL skills test in Utah includes three parts: a pre-trip vehicle inspection, a basic controls test, and a driving test. The pre-trip inspection assesses your ability to inspect your vehicle before driving. The basic controls test evaluates your ability to maneuver and control the vehicle. The driving test evaluates your on-road driving skills.
Yes, limitations can be imposed on Class A CDL license holders in Utah. These restrictions are based on the driver's abilities and the type of vehicle they tested in. For instance, if a driver takes the skills test in a vehicle without air brakes, they will have an "L" restriction, indicating they are not authorized to operate vehicles with air brakes.
In Utah, the written Class A CDL test is primarily offered in English. However, some locations may offer the test in Spanish as well. It's important to note that federal regulations require all commercial drivers to read and speak English sufficiently to converse with the general public, understand highway signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, accommodations can be provided for the Class A CDL written test for individuals with disabilities in Utah. The state complies with the Americans with Disabilities Act (ADA). You'll need to provide documentation of your disability and specify your required accommodation when scheduling your test. It's recommended to contact the Utah Driver License Division for detailed procedures.
Yes, you can retake the Class A CDL written test in Utah if you don't pass it the first time. However, you must wait until the next day to retake it. There's also a retest fee that you'll have to pay each time you retake the test. It's advisable to study thoroughly before reattempting to increase your chances of passing.