Combination #2
Combination Vehicles Practice Test | Utah 2024 #2 Page 3 of 4
Train for FREE online with our Utah CDL combination vehicle 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 combination license in 2024, 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 DMV requirements for issuing a combination license may vary from state to state.
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17 . The service air line is attached to the:
Steering wheel.
The service air line carries air and is controlled by either the foot brake or trailer hand brake. The service air line is attached to relay valves, which allow the trailer brakes to be applied quickly.
18 . What is another name for the service line?
The parallel line
The trailer service air line may also be referred to as the control line or signal line.
19 . A combination vehicle has:
Four air lines.
Combination vehicles have two air lines: a service line and an emergency line.
20 . If a load is placed on one side of a trailer, the trailer:
Positioning the weight of a load on one side of a trailer may cause the trailer to lean to that side, increasing the risk of a rollover during turns and lane changes.
21 . When coupling, you should:
When coupling air brake hoses, you should make sure the proper pairs of gland hands are connected. They are sometimes color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.
22 . When coupling a trailer, you should:
When coupling air brake hoses, you should make sure the proper pairs of gland hands are connected. They are sometimes color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.
23 . A driver should test the tractor protection valve by:
You should test the tractor protection valve by allowing the air supply to properly charge, turning off the engine, then releasing air from the system by pressing the brake pedal several times. The tractor protection valve should move into its emergency position when psi drops to an unsafe level.
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2024 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.
