Air Brakes #1
Air Brakes Endorsement Test | Rhode Island 2026 #1 Page 4 of 4
Train for FREE online with our Rhode Island CDL air brake 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 Class A/Class B driver license in 2026, 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 the requirements for CDL may vary from state to state.
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19 . Once the air tanks are at an air pressure level of 125 psi, the air compressor governor will:
An air compressor governor will stop the compressor from pumping air once the air tanks are at an air pressure level around 125 psi. This air pressure level is referred to as the "cut-out" level.
20 . Truck tractors with air brakes built on or after March 1, 1997 must have:
Truck tractors with air brakes built on or after March 1, 1997, and other vehicles with air brakes built on or after March 1, 1998, must be equipped with anti-lock brakes.
21 . ____ make up the emergency brake system.
In an air brake system, there are three different braking systems: a service brake system, a parking brake system, and an emergency brake system. The emergency brake system uses parts of both the parking and service brake systems.
22 . The parking brake in a newer vehicle is applied by:
In newer vehicles with air brakes, the parking brake is controlled by a yellow, diamond-shaped knob. The driver should pull the knob outward to apply the parking brakes and push the knob inward to release them.
23 . Brakes can get out of adjustment quickly, especially:
Brakes are particularly prone to getting out of adjustment if they are hot. Be sure to routinely check the adjustment of your brakes. For a vehicle to be safely controlled, all brakes must be properly functioning and adjusted.
24 . If using spring brakes when hauling a heavy load, a complete stop will:
Spring brakes do not work on all axles. If your vehicle's spring brakes activate due to low pressure in an air brake system, your vehicle will need a longer distance to stop than usual, especially if you are carrying a heavy load.
25 . While driving, ____ generally holds spring brakes in place.
While driving, spring brakes are generally held in place by air pressure. If the air pressure gets low enough, the springs will activate the brakes.
2026 Rhode Island | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Rhode Island, you must already possess a valid commercial driver's license (CDL). Then, study the specific material related to doubles/triples operation in the CDL manual. After preparing, schedule and pass the written doubles/triples endorsement test at a Rhode Island DMV location. Remember, driving skills test isn't required for this endorsement.
To obtain a CDL Doubles/Triples license, you must first possess a valid Commercial Driver's License (CDL). You then need to study the specific sections of your state's CDL manual related to operating doubles/triples. After studying, you must pass the written endorsement test at your local DMV. No specific skills test is needed for this endorsement.
While no specific experience or on-road training is legally required for a CDL Doubles/Triples endorsement, you must already hold a valid Commercial Driver's License (CDL). Studying the relevant sections in the CDL manual and understanding how to safely operate these vehicles are crucial. Passing the state's written endorsement test at the DMV is required to obtain the endorsement.
Yes, in Rhode Island, extra written tests or exams are mandatory for the CDL Doubles/Triples endorsement. To obtain this endorsement, you must pass a written test specifically designed to assess your knowledge and understanding of the safe operation of vehicles with multiple trailers. It is important to study and prepare for this additional test to successfully obtain the endorsement.
There is no specific skills test or maneuvers required for the CDL Doubles/Triples endorsement. The process involves a written knowledge test only. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and managing the vehicles on the road. However, being proficient in these skills is beneficial for safely operating such vehicles.
No, it's not permissible. In Rhode Island, as in all U.S. states, drivers must hold a valid Commercial Driver's License (CDL) with a Doubles/Triples endorsement to legally operate double or triple trailers. Operating these vehicles without the proper license and endorsement can result in heavy fines and legal penalties.
In Rhode Island, you can append the CDL Doubles/Triples endorsement to your current license. You do not need to initiate a new application. To add the endorsement, you will need to pass the required written test and pay the applicable fees. Once you have successfully obtained the endorsement, it will be added to your existing CDL license.
Yes, there are limitations. A CDL Doubles/Triples endorsement allows you to operate vehicles with more than one trailer, but the total length of the vehicle combination must not exceed 100 feet in Rhode Island. Additionally, drivers must adhere to all weight restrictions and safety regulations. Violations can result in fines, license suspension, or revocation.
In Rhode Island, the maximum length for any combination vehicle is 100 feet. The maximum weight depends on the number of axles and spacing between them, but it typically does not exceed 80,000 pounds. However, specific routes may have lower restrictions. Always check local regulations before driving a double or triple trailer.
Yes, there are specific safety guidelines and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in Rhode Island. These include maintaining proper spacing between trailers, adjusting driving techniques to account for increased length and weight, adhering to weight restrictions, and following specific procedures for coupling and uncoupling trailers. It is important to familiarize yourself with these guidelines to ensure safe operation of double/triple trailers.