- Updated for March 2025
- Based on 2025 VA commercial driver's license manual
Free VA CDL Double/Triple Trailers Practice Test 2025
Want to pull doubles in Virginia? (The state does not allow triple trailers.) You must hold a Class A CDL and obtain a Double/Triple (T) endorsement on your CDL. Where legal and practical, doubles are often preferred (especially in the logistics sector) for their increased efficiency. The limited number of drivers with the T endorsement and their specialized training place them in high demand.
In Virginia, as in much of the rest of the nation, the logistics and retail sectors make heavy use of multiple trailers for efficient transport (although other sectors often use doubles, too). Double-trailer trucks transport containers from the Port of Virginia to distribution centers inland. Railroads like CSX and Norfolk Southern offer intermodal operations, using double trailers to haul goods to or from rail. Walmart uses double trailers to supply stores from its distribution centers. Amazon Fulfillment Centers use double trailers for parcel distribution.
To obtain the Double/Triple Endorsement on your CDL, you must pass the official Double/Triple knowledge test. Topics covered on the test include safe handling, air brakes on doubles and triples, coupling and uncoupling, emergency situations, pre-trip inspections, rollovers, and trailer sway. (No special skills test is required for this endorsement.)
This knowledge test is based on the official Virginia CDL manual (Virginia CDL Handbook 2025), especially Chapter 7: Doubles and Triples. Have you had any trouble absorbing or memorizing the information in this manual? We can help ensure you pass the Double/Triple knowledge test on your first try.
This Virginia Doubles and Triples Endorsement Practice Test, the first of five we offer, is based on the official CDL manual, just like the official Double/Triple knowledge test. It’s up to date as of March 2025. The 20 multiple-choice questions and answers on this practice test deal with air lines, converter dollies, coupling, emergency situations, following distance, and rearward amplification.
Our AI Assistant can help you figure out the answer to any practice question. You can ask it to rephrase the question or give you a hint. You can also ask your own questions about commercial driving. If you still miss the question, the AI Assistant will immediately give you the correct answer and an explanation.
This practice test isn’t timed; take all the time you need to learn and master the material covered by this practice test. Disappointed with your final score? You can retake this practice test as often as you wish. The order of the questions will be randomized.
Be sure to try our other four Virginia Doubles and Triples Endorsement Practice Tests too!
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual VA DMV exam
questions
correct answers to pass
passing score
List of questions (classic view)
- When you're pulling more than one trailer, which trailer should be the first one behind the tractor?
- Which of these statements about quick steering movements and doubles/triples is true?
- You are driving a 100-foot double trailer combination at 50 mph. The road is dry and visibility is good. You should keep at least ____ seconds of space ahead of you.
- Before connecting a converter dolly to a second or third trailer, you should check the height of the trailer. The trailer height is right if
- You are driving a 100-foot double trailer combination at 30 mph. The road is dry and visibility is good. You should keep at least ____ seconds of space ahead of you.
- With the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the rig. When you do this, you should hear
- Empty trucks
- Which of these statements about handling doubles and triples is true?
- Before you can supply air to the air tanks of a second trailer, you need to
- You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking, you should
- How can you be sure that you supplied air to a second trailer?
- What is likely to happen if the pintle hook is unlocked while the dolly is still under the second trailer?
- You want to hook your combination to a second trailer that does not have spring brakes. To do this without wheel chocks, you should
- Which of these statements about managing space to the sides is true?
- The crack-the-whip effect that troubles trucks with trailers is most likely to tip over
- You are visually checking the coupling of a converter dolly to the rear trailer. How much space should there be between the upper and lower fifth wheel?
- You are pulling doubles. A set of trailer wheels goes into a skid. Which of the following is most likely to occur?
- You are doing a walk-around inspection of a double or triple trailer rig. You should be sure that the converter dolly air tank drain valves are ______ and the pintle hook is _______.
- A converter dolly is
- A converter dolly consists of a ______ wheel and ________ axles.
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