Knowledge Test Class A #1
Class A Driving Test | Michigan 2025 #1 Page 3 of 7
Train for FREE online with our Michigan class A license 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 CDL class A permit in 2025, 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 CDL class A requirements may vary from state to state.
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15 . During an inspection, slack adjusters on S-cam brakes should not move more than:
Check each slack adjuster after parking on level ground, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
16 . The air compressor is connected to the:
The air compressor of an air brake system is connected to the engine through gears or a v-belt. The compressor may be air-cooled or cooled by the engine cooling system.
17 . When inspecting the windshield before a trip, a person should do all the following, except:
When inspecting your windshield, you should look for cracks or other problems that could interfere with your ability to clearly see the road. The windshield wiper arms should be checked for proper spring tension. The wiper blades should be checked for damage, stiff rubber, and improper securement.
18 . What is a retarder?
Retarders help to slow vehicles, reducing drivers' need to use brakes.
19 . An after-trip inspection should be done:
You should always complete an after-trip inspection of your vehicle at the end of a trip, day, or tour of duty. Complete a vehicle inspection report, if required.
20 . When applying your brakes, the vehicle should:
Your vehicle pulling to one side or the other while you are braking can indicate trouble with the brakes.
21 . When traveling down a hill, you can reduce the amount of required braking by:
Before starting down a hill, decelerate and shift down into a gear that will allow you to control your vehicle without braking too hard. Using too much brake when driving downhill can cause the brakes to overheat, reducing the braking power.
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2025 Michigan | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Michigan, you must already possess a Commercial Driver's License (CDL). Complete a written knowledge test at the Secretary of State office. After passing the test, the endorsement will be added to your CDL. Remember, it's necessary to have a 'T' endorsement to pull double or triple trailers.
To obtain a CDL Doubles/Triples endorsement, you must: 1) Already hold a Commercial Driver's License (CDL), 2) Pass a written knowledge test about the specific skills and knowledge required for driving double and triple trailers, 3) Pay the necessary fees. Once you pass the test, the 'T' endorsement will be added to your CDL.
While specialized experience or training is not a mandatory requirement for a CDL Doubles/Triples endorsement, it is highly recommended. The endorsement test covers specific knowledge about handling double and triple trailers. Therefore, practical experience or training can be beneficial in successfully passing the test and safely operating such vehicles on the road.
Yes, to obtain a CDL Doubles/Triples endorsement, you are required to pass a written knowledge test. This test includes questions about coupling and uncoupling, inspecting doubles and triples, and rules for pulling these types of vehicles. After passing this test, the 'T' endorsement is added to your Commercial Driver's License (CDL).
The CDL Doubles/Triples endorsement test is a written exam, not a driving test, so no specific maneuvers are required. However, the test covers topics like coupling and uncoupling, inspecting doubles and triples, and rules for pulling these vehicles. Knowledge of these areas is essential to pass the test and safely operate such vehicles.
No, it is not permissible to operate double or triple trailers without a valid CDL Doubles/Triples endorsement in Michigan. Driving these types of vehicles requires specialized skills and knowledge, which are validated by obtaining the endorsement. Operating without the proper endorsement can lead to fines, penalties, and potential loss of your CDL.
You can add the CDL Doubles/Triples endorsement to your existing commercial driver's license in Michigan. You don't need to initiate a new application for a license. However, you must pass the required knowledge test for the endorsement and pay any applicable fees to add it to your current license.
Yes, there are limitations for drivers with a CDL Doubles/Triples endorsement. The most notable is that the endorsement only allows you to operate double or triple trailers. Additionally, all standard CDL rules and restrictions still apply, such as obeying traffic laws, maintaining a clean driving record, and passing regular medical examinations to ensure fitness for driving.
In Michigan, the maximum weight for a double/triple trailer is 164,000 pounds, depending on the number of axles and bridge length. The maximum length for a trailer is 53 feet. However, the combined length of a double/triple trailer cannot exceed 59 feet. Please note that these restrictions may vary based on local and federal regulations.
Yes, there are specific safety guidelines for driving double/triple trailers with a CDL Doubles/Triples endorsement. These include maintaining safe following distances, proper coupling and uncoupling of trailers, checking brake systems and lights, and managing high-speed and high-wind conditions. Drivers must also undergo regular drug and alcohol tests as per federal regulations.
