Combination #1
Combination Vehicles Practice Test | Rhode Island 2025 #1 Page 2 of 3
Train for FREE online with our Rhode Island 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 RI 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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8 . If color-coded, which color is used to identify service lines?
Air lines are sometimes color-coded to help drivers avoid mistakes when coupling glad hands. Typically, blue is used for service lines and red is used for emergency lines.
9 . If you are backing and the trailer begins to drift off-course, the driver should:
If your trailer begins to drift while you are backing, you should correct the drift immediately by turning the top of the steering wheel in the direction of the drift.
10 . 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.
11 . Trailers with low underneath clearance can present challenges when driving over:
Railroad-highway crossings may be difficult to cross when pulling a trailer with a low underneath clearance. In particular, both low-slung units and single-axle tractors pulling long trailers are especially challenging to drive over raised crossings.
12 . In a double or triple combination, the ____ trailer should be directly behind the cab.
When positioning trailers in a combination, the most heavily-loaded trailer should be the closest to the tractor. The lightest trailer should be positioned in the rear.
13 . If a trailer begins to jackknife, the driver:
If a trailer begins to jackknife, you should release the brakes and allow the trailer wheels to regain traction with the road. Do not apply the trailer hand brake to attempt to straighten out the rig because the application of brakes is what caused the wheels to lock in the first place.
14 . A trolley valve:
The trailer hand valve (also referred to as the trolley valve or Johnson bar) is a mechanism that works the trailer brakes. It should only be used to test the brakes. Using it while the vehicle is being driven could cause a skid. Never use the trailer hand valve while parking because doing so may release the air pressure from the braking system, releasing the brakes that are holding the vehicle in place.
See the exact questions that will be on the 2025 Rhode Island DMV exam.
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2025 Rhode Island | Frequently Asked Questions
To acquire a CDL Tank endorsement in Rhode Island, you must already possess a Commercial Driver's License (CDL). Next, study the state's CDL manual section on tank vehicles. Then, schedule and pass the state's tank vehicle endorsement test at a DMV office. The test covers topics like inspecting tank vehicles, safe driving, and handling emergencies.
To obtain a CDL Tank license, it's essential to have a basic Commercial Driver's License (CDL). Then, study the CDL manual's tank vehicle section. The next step is to pass the tank vehicle endorsement test, which covers inspecting tank vehicles, safe driving, and handling emergencies. The test can be taken at a DMV office in your state.
While specific training or experience isn't mandatory for a CDL Tank endorsement, it's highly recommended. Understanding how to safely operate and handle emergencies involving tank vehicles is crucial. Studying the CDL manual's tank vehicle section and possibly taking a training course can greatly improve your chances of passing the tank vehicle endorsement test.
Yes, to obtain a CDL Tank endorsement, you must pass an additional written test. This test covers specifics about operating tank vehicles, including inspecting tank vehicles, safe driving practices, and handling emergencies. The test is based on the information found in the tank vehicle section of the CDL manual.
The written test for the CDL Tank endorsement covers various topics including: inspecting tank vehicles, recognizing the high center of gravity, driving tank vehicles safely, safe loading and unloading procedures, and understanding the effects of surge. It also covers handling emergencies specific to tank vehicles. All these subjects are outlined in the tank vehicle section of the CDL manual.
The CDL Tank endorsement assessment primarily focuses on knowledge rather than specific driving maneuvers. It assesses understanding of inspecting tank vehicles, safe driving practices, handling liquid surge, and emergency procedures. However, if you're taking a skills test in a tank vehicle, you'll be evaluated on general CDL skills such as vehicle inspection, basic controls, and road test.
Yes, there are limitations for drivers with a CDL Tank endorsement. They are only allowed to transport liquids in a tank vehicle and the tank must be permanently attached to the vehicle. The tank must have a capacity of 119 gallons or more, and the total capacity of all tanks on the vehicle must be 1,000 gallons or more.
No, a valid CDL Tank endorsement is required to transport liquid or gaseous materials in a tank vehicle. This endorsement ensures the driver has the necessary skills and knowledge to handle such materials safely. Driving a tank vehicle without the proper endorsement is illegal and can result in significant penalties, including fines and suspension of the commercial driver's license.
You can add the CDL Tank endorsement to your current license without needing to apply for a new one. However, you must pass the Tank Vehicle endorsement knowledge test. After successfully passing the test, the endorsement will be added to your existing CDL. Please note, there might be additional fees for adding an endorsement.
Yes, handling hazardous materials with a CDL Tank endorsement has specific prerequisites. The driver must have both a Tank Vehicle and Hazardous Materials endorsement on their CDL. This requires passing both the Tank Vehicle and Hazardous Materials knowledge tests, and in some cases, a background check by the Transportation Security Administration.
