Combination #1
Combination Vehicles Practice Test | Michigan 2026 #1 Page 2 of 3
Train for FREE online with our Michigan CDL combination vehicle test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a MI combination license in 2026, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that DMV requirements for issuing a combination license may vary from state to state.
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8 . A driver should test the tractor protection valve by:
You should test the tractor protection valve by allowing the air supply to properly charge, turning off the engine, then releasing air from the system by pressing the brake pedal several times. The tractor protection valve should move into its emergency position when psi drops to an unsafe level.
9 . Trailers built before ____ are not required to have spring brakes.
Trailers built before 1975 are not required to have spring brakes. When parking a trailer without spring brakes, be sure to use wheel chocks to prevent the trailer from rolling.
10 . What is a bobtail tractor?
Tractors without semi-trailers are referred to as bobtail tractors. Operating a bobtail tractor requires drivers to exercise caution.
11 . During a trip, landing gear should be:
Landing gear, or trailer supports, should always be completely raised before a vehicle is driven. Landing gear that is not entirely raised could catch on railroad tracks or other hazards on the roadway.
12 . If you press the tractor air supply control and your trailer's spring brakes do not release, you should:
It is important that all of a vehicle's equipment is in proper working condition before beginning a trip. If a trailer's spring brakes do not release when you push in the tractor air supply control, you should make sure the air line connections are properly attached and sealed.
13 . A trolley valve:
The trailer hand valve (also referred to as the trolley valve or Johnson bar) is a mechanism that works the trailer brakes. It should only be used to test the brakes. Using it while the vehicle is being driven could cause a skid. Never use the trailer hand valve while parking because doing so may release the air pressure from the braking system, releasing the brakes that are holding the vehicle in place.
14 . When backing up while coupling a trailer, the tractor should be positioned:
When backing up to couple a trailer, you should position the tractor directly in front of the trailer. Trying to couple while backing at an angle could cause the trailer to move and the landing gear to break.
See the exact questions that will be on the 2026 Michigan DMV exam.
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2026 Michigan | Frequently Asked Questions
In Michigan, to acquire a CDL Tank endorsement, you must first have a Commercial Driver's License (CDL). Then, you need to pass the Tank Vehicle (N) written test. The test covers topics like inspecting tank vehicles, driving tank vehicles, and safe driving rules. Studying the Michigan CDL handbook can help you prepare for this test.
To obtain a CDL Tank license in Michigan, you must first have a basic Commercial Driver's License (CDL). Then, pass the Tank Vehicle Endorsement Test, which covers topics like inspecting tank vehicles, driving tank vehicles, and safe driving rules. You must also be at least 21 years old to drive a tank vehicle across state lines.
While Michigan doesn't mandate specific training for a CDL Tank endorsement, it requires passing the Tank Vehicle Endorsement Test. Gaining practical experience or training can be beneficial in passing the test. This test covers inspecting tank vehicles, driving tank vehicles, and safe driving rules. Therefore, understanding these aspects through training or experience can aid in passing the test successfully.
Yes, in Michigan, to obtain a CDL Tank endorsement, you must pass the Tank Vehicle Endorsement Test. This is an additional written examination that covers topics such as inspecting tank vehicles, driving tank vehicles safely, and understanding specific driving rules related to tank vehicles. It's separate from the general CDL test.
The written test for the CDL Tank endorsement in Michigan includes subjects like inspecting tank vehicles, driving tank vehicles safely, and handling special driving conditions. It also covers rules related to the safe transportation of liquids and gases, understanding the surge effect, and emergency procedures.
The CDL Tank endorsement assessment doesn't involve specific maneuvers. It's a written test that evaluates your knowledge on key areas like inspecting tank vehicles, understanding the effects of liquid surge on vehicle handling, and safe driving rules specific to tank vehicles. The test ensures you have the knowledge to safely operate a tank vehicle on public roads.
Drivers with a CDL Tank endorsement must comply with all federal and state regulations regarding the transport of liquids. This includes adherence to weight limits, securing of loads, handling hazardous materials, and hours of service rules. Any violation of these regulations can result in penalties, including suspension or revocation of the CDL Tank endorsement.
No, it's illegal to transport liquid or gas materials in large quantities without a valid CDL Tank endorsement. This endorsement is required for operating a tank vehicle that's designed to safely carry liquid or gaseous materials. Driving such vehicles without the appropriate endorsement can result in penalties, including fines and suspension of your commercial driver's license.
The CDL Tank endorsement can be added to your existing Commercial Driver's License (CDL) in Michigan. You don't need to apply for a new license. However, you will need to pass the tank vehicle written test and pay the required fee to add the endorsement to your current CDL.
Yes, to transport hazardous materials with a CDL Tank endorsement, drivers must also have a Hazardous Materials (HazMat) endorsement. This requires passing a written test and a background check. Drivers must follow specific regulations for securing loads, using safety equipment, and emergency procedures. Non-compliance can lead to serious penalties.
