Combination #1
Combination Vehicles Practice Test | Delaware 2025 #1 Page 3 of 3
Train for FREE online with our Delaware 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 DE 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 . When driving a bobtail tractor, you should be aware that:
Bobtails are illegal in most states.
Bobtail tractors are tractors that are not attached to any semitrailers. When operating a bobtail, you should be aware that stopping can be difficult and that it will take a longer distance to bring the bobtail to a complete stop than it would a tractor attached to a loaded semitrailer.
16 . The service air line is attached to the:
Steering wheel.
The service air line carries air and is controlled by either the foot brake or trailer hand brake. The service air line is attached to relay valves, which allow the trailer brakes to be applied quickly.
17 . Keeping cargo low can:
Rollovers can happen when a combination vehicle is turned too quickly. To help prevent the risk of rollover, it is important to keep the vehicle's center of gravity low by loading cargo as close to the ground as possible.
18 . When driving a vehicle equipped with an Anti-Lock Braking System (ABS), brakes should be applied:
When driving a vehicle with ABS, you should brake in the same manner as you would in a vehicle without ABS.
19 . When backing up while coupling a trailer, the tractor should be positioned:
When backing up to couple a trailer, you should position the tractor directly in front of the trailer. Trying to couple while backing at an angle could cause the trailer to move and the landing gear to break.
20 . In a double or triple combination:
The weight of the trailers does not matter.
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.
See the exact questions that will be on the 2025 Delaware DMV exam.
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2025 Delaware | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Delaware, you must already have a Commercial Driver's License (CDL). You'll then need to pass the doubles/triples endorsement knowledge test. Additionally, check if you need to meet any other specific requirements set by the Delaware Division of Motor Vehicles (DMV) such as age or experience criteria.
To obtain a CDL Doubles/Triples endorsement, you must already hold a Commercial Driver's License (CDL). You'll then need to pass a knowledge test on handling large trucks with more than one trailer. This will cover topics like coupling and uncoupling, inspecting doubles and triples, and handling these vehicles. Check with your local DMV for any additional requirements.
While having experience or training driving large trucks can be beneficial, it is not explicitly required for a CDL Doubles/Triples endorsement. However, you must pass a knowledge test on handling such vehicles. Some drivers choose to take a training course to prepare for the test, but this is not mandatory according to Delaware DMV regulations.
Yes, to obtain a CDL Doubles/Triples endorsement in Delaware, you must pass a written knowledge test. This test covers topics such as coupling and uncoupling, inspecting doubles and triples, and handling these vehicles. No additional driving skills test is required beyond the initial CDL exam.
The CDL Doubles/Triples endorsement test in Delaware is a written test, not a skills or driving test. Therefore, you won't need to showcase specific maneuvers. The test covers knowledge areas like handling double/triple trailers, coupling and uncoupling, inspection procedures, and air brake checks. It's important to study these topics thoroughly.
No, it is not permissible to operate double/triple trailers without a valid CDL Doubles/Triples endorsement in Delaware. Operating such vehicles without the appropriate endorsement can lead to serious penalties, including fines, license suspension, and potential disqualification from obtaining future endorsements.
You can add the CDL Doubles/Triples endorsement to your existing commercial driver's license in Delaware. You don't need to initiate a new application for a CDL. However, you must pass the required knowledge test and pay the necessary fees to obtain this endorsement. Always check with your local DMV for specific procedures and requirements.
Yes, there are limitations for drivers with a CDL Doubles/Triples endorsement in Delaware. Drivers must follow all federal and state regulations regarding weight limits, length restrictions, and safety protocols. Also, drivers with this endorsement are not allowed to operate other types of commercial vehicles unless they have the appropriate endorsements for those vehicles as well.
The maximum weight for double/triple trailers in Delaware is 80,000 pounds. The length limit for double trailers is 28.5 feet per trailer, and for triple trailers, it's 28.5 feet for the first two trailers and 28 feet for the third trailer. However, triple trailer combinations are generally not allowed on most roads in Delaware.
Yes, drivers with a CDL Doubles/Triples endorsement must adhere to specific safety regulations. These include conducting pre-trip inspections, securing the coupling devices properly, maintaining safe following distances, and understanding high-risk crash areas. Drivers must also comply with hours of service regulations and ensure proper loading and weight distribution of cargo.
