Combination #2
Combination Vehicles Practice Test | Wyoming 2025 #2 Page 3 of 3
Train for FREE online with our Wyoming 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 WY 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 . What does an Anti-Lock Braking System (ABS) do?
An Anti-Lock Braking System (ABS) helps prevent wheel lockup during hard braking. If ABS detects impending lockup, it reduces braking pressure to a safe level.
16 . What can the “crack-the-whip” effect do?
Make trucks decelerate.
The "crack-the-whip" effect can cause a trailer to turn over during a lane change. To avoid this phenomenon, drivers should make lane changes at slow, safe speeds.
17 . Failure to keep the fifth wheel plate properly greased could:
Affect the lights.
Failure to keep the fifth wheel plate properly lubricated can create friction between the tractor and trailer, causing steering problems.
18 . Fully-loaded rigs:
Fully-loaded rigs are more vulnerable to rolling over than empty rigs because the weight of the cargo gives the vehicles higher centers of gravity.
19 . After completing a pre-trip inspection, you should ensure that the:
Before a trip, you should ensure that air reaches all air brakes on all trailers by opening up the rear emergency line and service line shut-off valves and listening for escaping air. Close both shut-off valves before beginning to drive.
20 . In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when:
Air pressure is above 45 psi.
In vehicles equipped with an automatic tractor protection valve, the valve will pop out if air pressure drops to a level between 20 and 45 psi. When the valve pops out, the protection valve will close, stopping the flow of air.
See the exact questions that will be on the 2025 Wyoming DMV exam.
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2025 Wyoming | Frequently Asked Questions
To acquire a CDL Tank endorsement in Wyoming, you must have a Commercial Driver's License (CDL). Then, study for the tank endorsement test using the Wyoming CDL manual. Schedule and pass the written tank endorsement test at your local Wyoming DMV. The test covers topics like inspecting tank vehicles, driving tank vehicles, and safe driving rules.
To obtain a CDL Tank license, you need to first have a Commercial Driver's License (CDL). Then, you must pass the tank vehicle endorsement test. This test covers topics such as inspecting and driving tank vehicles, and understanding relevant safety rules. Studying with the state's CDL manual is essential to prepare for this test.
Yes, specific training and experience are required for a CDL Tank endorsement in Wyoming. To obtain the endorsement, you must pass a written knowledge test and a skills test in a vehicle that requires the endorsement. Additionally, you must complete a training program or have at least three months of experience operating a tank vehicle.
Yes, to obtain a CDL Tank endorsement, you must pass a specific written test. This test focuses on the knowledge and skills necessary for safely operating a tank vehicle, including inspecting tank vehicles, driving tank vehicles, and understanding related safety rules. The content for this test can be found in the state's CDL manual.
The written test for a CDL Tank endorsement covers several topics. These include the inspection of tank vehicles, understanding the unique handling characteristics of tank vehicles, safe driving strategies, and understanding the rules and regulations relating to transporting liquids or gases. It's recommended to study these subjects thoroughly using the state's CDL manual.
The CDL Tank endorsement does not typically involve a separate skills or driving test. It mainly includes a written examination focusing on knowledge aspects. However, during the general CDL skills test, you'll be evaluated on basic vehicle control and on-road driving, which indirectly assess your ability to maneuver a tank vehicle safely. Always confirm specific requirements with your local DMV.
Yes, drivers with a CDL Tank endorsement must adhere to specific rules and regulations. These include following specific safety protocols when transporting liquids, understanding the handling and movement of liquid loads, and handling emergencies. Additionally, certain hazardous materials may require additional endorsements. Violating these rules can lead to penalties, including the loss of the endorsement or license.
No, you cannot legally transport liquid or gas materials without a valid CDL Tank endorsement. This endorsement is required for drivers who wish to operate a tank vehicle, which is defined as any commercial motor vehicle designed to transport any liquid or gaseous materials within a tank or tanks having an individual rated capacity of more than 119 gallons and an aggregate rated capacity of 1,000 gallons or more.
Yes, the CDL Tank endorsement can be added to your existing Commercial Driver's License (CDL). You don't need a fresh application for a new CDL. However, you will need to pass the Tank Vehicle written test and pay the applicable fee to add the endorsement to your current license. Always check with your local DMV for specific procedures and requirements.
Yes, there are specific regulations and prerequisites for handling hazardous materials with a CDL Tank endorsement in Wyoming. In addition to obtaining the Tank endorsement, you must also pass a written knowledge test specifically for hazardous materials. You must also undergo a background check and be fingerprinted as part of the Transportation Security Administration's security threat assessment process. Additionally, you must comply with all federal and state regulations regarding the transportation of hazardous materials.
