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- Updated for December 2024
- Based on 2024 MI commercial driver's license manual
Free Michigan CDL Combination Practice Test 2024
In the great state of Michigan, there should be plenty of work for drivers of combination vehicles, such as semi-trucks and tractor-trailers. Michigan has long been the home of the “Big Three” automobile manufacturers, and it also manufactures products in aerospace. However, its economy has diversified in recent decades. The state is now also home to a thriving high-tech economic sector. Truckers transport equipment and materials to many of these businesses and transport their finished products. Michigan has a significant agricultural industry, producing a wide variety of products such as milk, corn, soybeans, blueberries, and tart cherries, among many others. Truckers transport these products to distribution centers, processing plants, and markets. Finally, the state’s proximity to Canada creates a demand for truckers in cross-border trade.
Major commercial routes include Interstate 69 (used in cross-border trade and freight transport between the Midwest and Canada), Interstate 75 (heavily used for automotive and industrial freight), and Interstate 96 and U.S. Route 23 (both used for regional freight transport).
To drive combination vehicles, you’ll have to pass more than one official knowledge test. To obtain any class of CDL, you must pass the General Knowledge test on general commercial driving theory. But to be qualified to drive combination vehicles, you’ll also have to pass the Combination Vehicles knowledge test on the theory of driving combination vehicles. You’ve probably been urged to study the official Michigan Commercial Driver’s Study Guide (Michigan CDL Handbook 2024), especially Section 6 (Combination Vehicles), because the official Combination Vehicles knowledge test is based on this official study guide. However, are you looking for some more help to pass the knowledge test than you’re getting from the manual? Good news: You’ve come to the right place! We’ve already helped many aspiring commercial drivers, and we can help you too.
This free Michigan CDL Combination practice test, one of several we offer, is based on the official state commercial driving manual, just like the official knowledge test. It’s up to date as of December, 2024. There are 25 multiple-choice questions and answers on such topics as combination braking systems, combination driving techniques, coupling and uncoupling, and vehicle inspections. However, unlike the official knowledge test, this practice test comes with our automated assistant, which can help you with a question by supplying a hint and an explanation of the correct answer. There is no time limit. Take your time and learn as much as you can. Try to look up the answer to a puzzling question in the official study guide before proceeding with the rest of the test.
- 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)
- After you lock the kingpin into the fifth wheel, how should you check the connection?
- After you connect the air lines but before you back under the trailer, you should
- Which statement best illustrates the "crack-the-whip" effect?
- When you inspect the landing gear after uncoupling the trailer, where should the tractor be?
- What is the safest way to turn right from a two-way road?
- To drive a triple combination vehicle, you must have
- To prevent a rollover, cargo should be
- Combination vehicles take longer to stop when they are empty than when they are fully loaded, because
- If your vehicle gets stuck on a railroad track, you should
- Low-slung vehicles can be risky at railroad crossings because
- On a double or triple vehicle, which wheels offtrack the most?
- When you're pulling doubles or triples, the shut-off valves should always be
- On a trailer, where is the yellow antilock brake (ABS) malfunction lamp located?
- Even before antilock braking systems (ABS) were required, some vehicles already had them. How can you check if your vehicle has ABS?
- An antilock braking system (ABS) is useful
- After coupling, make sure that the air lines are not crossed. How should you do this?
- During uncoupling, you should disconnect the electrical cable and
- Before you start to uncouple, you must
- You can confirm that air is going to all brakes in your trailers by
- To uncouple a loaded trailer, after the landing gear has made firm contact with the ground, you should
- If the trailer has antilock brakes (ABS) but the tractor doesn't,
- To test the tractor protection valve, charge the trailer air brake system, turn off the engine, and
- If your test of the tractor protection valve is successful,
- The tractor protection valve is designed to close automatically if the air pressure falls into the pressure range specified by the manufacturer, typically
- As part of your vehicle inspection test, if your vehicle is equipped with air brakes and has a trailer, you will inspect the air connections between the truck or tractor and the trailer. Make sure that the ________ are locked in place and free of damage or air leaks.
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