- Updated for May 2025
- Based on 2025 NV commercial driver's license manual
Free NV CDL Double/Triple Trailers Practice Test 2025
From the wide-open deserts to the beautiful mountains, you’ll find a little of a lot transporting cargo through Nevada. What better way to add to your credibility and income potential than by enhancing your Nevada Commercial Driver’s License (CDL) with a Double/Triple Trailers endorsement! This endorsement opens the floodgates for additional opportunities, and the good news is, you’ve already done most of the heavy lifting. With your CDL in hand and (hopefully) having passed the Combination Vehicles knowledge test, the main requirement for this certification is passing a 20-question multiple-choice knowledge test with a score of 80% (16 correct answers). Once you’ve done that, you’ll receive the “T” endorsement, which authorizes you to pull two or three trailers (where laws allow) (Nevada CDL Handbook 2025).
In the Silver State, you must be at least 21 to add this certification. Unlike many states with a Doubles/Triples Trailers endorsement, in Nevada, you are allowed to pull both double and triple trailers. Double and triple trailers are often used for the transport of Nevada’s silver and other raw mining materials, consumer goods, food and beverages (especially considering the state’s huge tourism industry in Vegas!), cross-border agricultural products, construction materials, and electronics. You may be saying to yourself, “I’ve got to get this endorsement! How can I best prepare for the test?”
Looking online, you will find a vast and daunting supply of information. What you need is a systematic, focused approach —and that’s what our online Nevada CDL Double/Triple Trailers practice test offers. Up to date as of May 2025, it includes 20 multiple-choice questions that resemble what you will face at the DMV on your test day! Add this endorsement as soon as possible!
While you work through our online practice test, you’ll receive immediate feedback on each answer. Unlike other approaches that pile on explanations for wrong answers at the end, you’ll see right away why a different response is correct. So, what are you waiting for? Once you’ve prepared, practiced with our tests, and feel ready, simply apply at the DMV. Bring your documents, pay the required fee, pass the official test, and open up a new world of opportunity.
Looking for other Nevada-based CDL endorsements? Find tons of valuable information and practice tests here: https://driving-tests.org/nevada/#cdltests
- 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 NV 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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