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- Updated for December 2024
- Based on 2024 MI commercial driver's license manual
Free MI CDL Double/Triple Trailers Practice Test 2024
To add the Double and Triple Trailer endorsement to your Michigan Commercial Driver’s License (CDL), the main hurdle 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, which is your authorization to pull two or three trailers (where laws allow) and drive combination vehicles that require this added expertise (Michigan CDL Handbook 2024).
In the Great Lakes State, even with a Double and Triple Trailer 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, especially in Michigan. {State-name} has a higher weight limit due to the nature of much of its industrial transport needs, so double trailers are often used for the transport of automotive parts, gravel and sand, steel and metal, wood and lumber, and, of course, general freight and consumer goods. 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 completely overwhelmed. What you need is a systematic, targeted approach, and that’s exactly what our online practice test offers. Up to date as of December 2024, it includes 20 multiple-choice questions that resemble what you will face at the DOS on your test day!
As you work through our Michigan CDL Double/Triple trailers practice test, you’ll receive real-time in-depth feedback on your answers. Get a question wrong? No worries! You’ll immediately see why a different response is correct. This process strengthens your memory as you progress instead of bombarding you with a multi-topic summary at the end.
In Michigan, passing the knowledge test is the only requirement for adding the “T” endorsement to your Class A CDL. There is no additional driving test. Once you’ve prepared, practiced with our free tests, and feel confident, simply apply at the DOS. Bring your documents, pay the appropriate fee, and pass the test to officially receive the endorsement.
Looking for other Michigan-based CDL endorsements? Find tons of valuable information and practice tests here: https://driving-tests.org/michigan/#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 MI DOS 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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