Combination #1
Combination Vehicles Practice Test | Utah 2025 #1 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 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 DMV requirements for issuing a combination license may vary from state to state.
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17 . The emergency air line supplies air to the:
The emergency air line (also known as the supply line) has two functions. The first is to supply air to the trailer air tanks, and the second is to control the emergency brakes on combination vehicles.
18 . In an empty combination vehicle, the stiff suspension springs and strong brakes will have:
An empty combination vehicle will come to a complete stop more slowly than a fully-loaded vehicle. With less weight in a trailer, the stiff suspension springs and strong brakes will have lower traction than they would if the vehicle carried more weight.
19 . A combination vehicle has:
Four air lines.
Combination vehicles have two air lines: a service line and an emergency line.
20 . If you need to back your trailer but cannot back up in a straight path, you should:
Always turn to your right.
If you need to back your trailer but cannot back up in a straight path, you should back on a curved path toward the driver's side of the vehicle. This will permit you the best possible visibility while backing.
21 . Combination vehicles need extra space on the road because they:
Combination vehicles need more space on the road than other commercial vehicles because they are longer and need more space to turn and stop. It is especially important to properly manage space when you are operating a combination vehicle.
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 . 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.
2025 Utah | Frequently Asked Questions
To acquire a CDL Tank endorsement in Utah, you must first have a valid CDL. Then, you need to pass the Tank Vehicle written test at a Utah Driver License Division office. The test covers knowledge about tank vehicles, their unique properties, and how to safely operate them. Once you pass the test, the endorsement will be added to your CDL.
To obtain a CDL Tank license, you need a valid Commercial Driver's License (CDL). You must then pass the Tank Vehicle written test, which covers knowledge on the safe operation and unique properties of tank vehicles. The test is offered at Utah Driver License Division offices. Once passed, the endorsement is added to your CDL.
While specific training is not mandatory for a CDL Tank endorsement in Utah, it's highly recommended to prepare for the endorsement test. You should understand the safety protocols, inspection procedures, and driving techniques for tank vehicles. Practical experience, although not required, can also be beneficial. Always refer to Utah's CDL manual for comprehensive information.
Yes, to obtain a CDL Tank endorsement in Utah, you are required to pass an additional written test. This test focuses on the safe operation and unique properties of tank vehicles. It is separate from the general CDL test and must be taken at a Utah Driver License Division office.
The written test for a CDL Tank endorsement covers various subjects related to tank vehicles. This includes the inspection and maintenance of tank vehicles, understanding bulk packaging markings, driving stability and handling, safe driving rules, and emergency response procedures. The test is designed to ensure drivers can safely operate tank vehicles.
During the CDL Tank endorsement assessment in Utah, several skills and maneuvers are assessed. These include inspecting the tank vehicle for safety, proper loading and unloading procedures, controlling the vehicle's speed and braking, maneuvering through turns and curves, and maintaining control during emergency situations. Additionally, knowledge of hazardous materials regulations and proper handling procedures is also evaluated.
Yes, drivers with a CDL Tank endorsement must adhere to specific regulations. They must ensure the load is properly balanced and secure, follow all safety procedures when loading and unloading, and handle hazardous materials carefully. Additionally, they must comply with hours-of-service regulations to prevent driver fatigue. Violation of these rules can result in fines, suspension, or revocation of the endorsement.
No, a valid CDL Tank endorsement is required to transport liquid or gas materials. This ensures the driver is knowledgeable and skilled in handling such materials, which can pose unique challenges and risks. Driving without the necessary endorsement is illegal and can result in serious penalties, including fines and suspension of the driver's CDL.
Yes, a CDL Tank endorsement can be added to your current commercial driver's license. You don't need to apply for a new license. However, you will need to pass the tank vehicle written test and pay the required fee. The endorsement allows you to transport liquid or gas materials in a tank vehicle. Always ensure you comply with all regulations.
Yes, to handle hazardous materials in Utah, you must have both a CDL Tank endorsement and a Hazardous Materials (HazMat) endorsement. Getting the HazMat endorsement involves passing a knowledge test, undergoing a TSA background check, and fingerprinting. This ensures that drivers are trained to handle these materials safely and understand the associated risks and precautions.