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.
See the exact questions that will be on the 2025 Nevada DMV exam.
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2025 Nevada | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Nevada, you first need to have a valid Nevada CDL. Then, you must pass the Doubles/Triples Knowledge test. Studying the Nevada Commercial Driver License Manual can help prepare for this test. After passing, you can add the endorsement to your CDL at any DMV Full Service Office.
To obtain a CDL Doubles/Triples license, you need to have a valid Commercial Driver's License (CDL). You must then pass the Doubles/Triples Knowledge Test. Preparation for this test can be done using the CDL manual. Once you pass, the endorsement can be added to your license at your local DMV office.
Specialized experience or training is not a requirement for a CDL Doubles/Triples endorsement. However, you need to pass the Doubles/Triples Knowledge Test. Studying the CDL manual can help you prepare for this test. Once passed, the endorsement can be added to your existing CDL at your local DMV office.
Yes, to obtain a CDL Doubles/Triples endorsement in Nevada, you must pass the Doubles/Triples Knowledge Test. This test covers the specific safety rules and operational practices related to driving double and triple trailer trucks. You can prepare for this test using the CDL manual available from your local DMV office.
The CDL Doubles/Triples endorsement test primarily focuses on knowledge rather than specific skills or maneuvers. The test includes topics like coupling and uncoupling, inspecting doubles and triples, and managing cargo. However, there's no specific driving skills test for this endorsement. It's crucial to understand the handling characteristics of double/triple trailers for safe operation.
No, it is not permissible to operate double or triple trailers without a valid CDL Doubles/Triples endorsement in Nevada. Operating such vehicles without the proper endorsement could result in serious penalties, including fines and potential disqualification of your commercial driving privileges. Always ensure you have the correct endorsements for the vehicle you're operating.
You can add the CDL Doubles/Triples endorsement to your existing Commercial Driver's License. You don't need to initiate a new CDL application. However, you will have to pass the written knowledge test specific to driving double and triple trailers before the endorsement can be added to your license.
Yes, there are certain limitations for drivers with a CDL Doubles/Triples endorsement. Drivers must not exceed the maximum weight limit for the trailers, which is 80,000 pounds in Nevada. Plus, they must ensure safe loading and unloading of cargo. Also, they are subject to stricter driving hours regulations and more frequent inspections due to the potential safety risks associated with these larger vehicles.
In Nevada, the maximum weight limit for double/triple trailers, with a CDL Doubles/Triples endorsement, is 80,000 pounds. The total length of a double trailer cannot exceed 81.5 feet. Remember that these limits include the length and weight of the tractor unit as well. Always ensure you comply with these restrictions to avoid penalties.
Yes, safety is paramount when driving double/triple trailers. Drivers must observe all general commercial driving rules, plus specific ones for multiple trailers. These include maintaining a safe following distance, checking that connections are secure, and taking wide turns to avoid "off-tracking." Also, drivers should be trained in coupling/uncoupling procedures and understand the high rollover risk associated with these vehicles.
