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- Updated for December 2024
- Based on 2024 MD commercial driver's license manual
Free MD CDL Double/Triple Trailers Practice Test 2024
Thinking about adding the T-Double/Triple Trailers endorsement to your Maryland Commercial Driver’s License (CDL)? The main challenge is passing a 20-question multiple-choice knowledge test. You’ll need a score of 80% (16 correct answers) to pass this test. After passing, you’ll receive the “T” endorsement on your CDL, authorizing you to pull two or three trailers (where laws allow) and drive combination vehicles that require this added expertise (Maryland CDL Handbook 2024).
In the Old Line State, even with a T-Double/Triple Trailers endorsement, you’re only allowed to pull double trailers. Rest assured, though, earning this endorsement not only increases your standing in the transport industry but dramatically raises your job prospects and earning potential. Double trailers are often used throughout Maryland for the transport of packages, dry goods, food and beverage products, and raw goods like paper or plastic, which are bulky and require extra space but stay within weight limits for transport. You may be saying to yourself, “This sounds incredible! But how can I best prepare for the test?”
With so much online information available, it’s easy to feel overwhelmed. A systematic, focused approach is what you need, and that’s exactly what our online Maryland CDL Double/Triple Trailers practice test offers. Up to date as of December 2024, it includes 20 multiple-choice questions that resemble what you will face at the MVA on your test day!
As you work through our online practice test, you’ll receive instant, in-depth feedback on your answers. Get a question wrong? No problem! You’ll immediately see why a different response is correct. Gone are the days of being bombarded with feedback on multiple categories at the end of a test. Our real-time approach helps you remember the content as you go.
In Maryland, the only step required to add the “T” endorsement to your Class A CDL is to pass the knowledge test. There is no additional skills test. Once you’ve prepared, practiced with our free tests, and feel confident, simply apply at the MVA. Bring your documents, pay the required fee, and pass the test to officially add the endorsement.
Looking for other Maryland-based CDL endorsements? Find tons of valuable information and practice tests here: https://driving-tests.org/maryland/#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 MD MVA 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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