Combination #1
Combination Vehicles Practice Test | Nevada 2025 #1 Page 3 of 3
Train for FREE online with our Nevada 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 NV 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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15 . If colors are being used to distinguish glad hands, which color is used for service lines?
Blue
When trailer air lines are color-coded, the service lines are generally blue and the emergency lines are generally red.
16 . When a vehicle goes around a corner, the rear wheels:
When any vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called off-tracking. The degree of off-tracking will be greater on long vehicles than on short vehicles.
17 . If your vehicle gets stuck on railroad tracks, you should:
If your vehicle gets stuck on railroad tracks for any reason, you should immediately exit the vehicle and walk away from the tracks. Contact the proper emergency authorities.
18 . If the emergency air line loses pressure:
The tractor protection valve keeps air in the trailer's braking system should the trailer break away or develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to open and the emergency trailer brakes to activate.
19 . 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.
20 . If colors are being used to distinguish glad hands, which color is used for emergency lines?
Red
When trailer air lines are color-coded, the service lines are generally blue and the emergency lines are generally red.
2025 Nevada | Frequently Asked Questions
To acquire a CDL Tank endorsement in Nevada, first, you must have a valid Commercial Driver's License (CDL). Then, you need to pass the Tank Vehicle written test at your local DMV. This test covers the special driving rules and techniques for tank vehicles. Once you pass the test, the Tank endorsement will be added to your CDL.
To obtain a CDL Tank license, you must first hold a valid Commercial Driver's License (CDL). You should then study the Tank Vehicles section of your state's CDL handbook thoroughly. Once prepared, you'll need to pass a written tank vehicle endorsement test at your local DMV. This endorsement is required for driving vehicles transporting liquid or liquefied gas cargo.
Specific training or experience is not mandatory to obtain a CDL Tank endorsement in Nevada. However, it's crucial to know the unique handling characteristics of tank vehicles. Studying the CDL manual, particularly the section about tank vehicles, will help you pass the written test at the DMV and safely operate such vehicles.
Yes, to obtain a CDL Tank endorsement in Nevada, you must pass an additional written test specific to tank vehicles. This test covers unique rules and driving techniques for tank vehicles. It is taken at your local DMV and is in addition to the general CDL written test. You do not need to take an additional skills test.
The written test for the CDL Tank endorsement in Nevada covers topics specific to tank vehicles. These include understanding the high center of gravity, how liquid surge affects control, inspecting tank vehicles, and the rules for safe driving. It also includes handling bulkheads, baffled and unbaffled tanks, and emergencies specific to tank vehicles.
During the CDL Tank endorsement assessment in Nevada, the following skills and maneuvers are assessed: inspection of the vehicle, controlling the vehicle in various driving conditions, backing up and parking the vehicle, handling emergency situations, and demonstrating knowledge of tank vehicle safety regulations. It is important to study and practice these skills to successfully pass the assessment.
Yes, there are constraints for drivers with a CDL Tank endorsement in Nevada. For instance, they must comply with the Hazardous Materials Regulations (HMR) if they transport hazardous substances. Additionally, they must always maintain their CDL and endorsements, and adhere to all federal and state driving laws. Violations can result in temporary or permanent loss of their CDL privileges.
No, in Nevada, you cannot transport liquid or gas materials without a valid CDL Tank endorsement. This endorsement is required for operating a tank vehicle, which is defined as any commercial motor vehicle designed to transport any liquid or gaseous materials within a tank. Violating this can result in fines and loss of driving privileges.
The CDL Tank endorsement can be added to your existing Commercial Driver's License (CDL) in Nevada. You don't need a fresh application. However, you must pass a knowledge test specific to tank vehicle operation and pay the required fees. Once you pass the test, the Tank endorsement will be added to your CDL.
Yes, to handle hazardous materials with a CDL Tank endorsement in Nevada, you must also have a Hazardous Materials (HazMat) endorsement. This requires passing an additional knowledge test, a TSA background check, and fingerprinting. Without the HazMat endorsement, you may transport non-hazardous materials in a tank vehicle.