Knowledge Test Class A #1
Class A Driving Test | Montana 2025 #1 Page 6 of 7
Train for FREE online with our Montana 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 MT 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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36 . Poisonous fumes can enter the cab due to:
Under-inflated tires.
Defects in an exhaust system are very dangerous because they can cause poisonous fumes to enter the cab or sleeper berth.
37 . Mirror adjustment can only be checked properly if:
The vehicle is on a slight decline.
If a trailer is attached to a tractor, the adjustment of the vehicle's mirrors can only be checked accurately if the trailer is straight.
38 . Accelerating roughly is:
Discouraged, as it may confuse other drivers.
When accelerating, speed up smoothly and gradually so your vehicle does not jerk. Rough acceleration can cause mechanical damage.
39 . How many daily hours of sleep does an adult need to maintain alertness?
Four to five
Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.
40 . Too little weight on a steering axle can result in:
Improved gas mileage.
The weight of cargo in a vehicle needs to be balanced appropriately so that it does not interfere with the vehicle's safe handling. For example, if cargo is placed too far to the rear of a vehicle, the front axle will be under-weighted and the front wheels may not have enough traction for the driver to steer safely.
41 . Which of the following is not a crime that would disqualify an applicant from a hazardous materials endorsement?
Speeding
There are a number of crimes that will disqualify a person from receiving a hazardous materials endorsement for seven years. Among these are kidnapping or hostage taking, smuggling, and immigration violations. More serious crimes, such as murder, will result in a lifetime disqualification.
42 . A tread depth of ____ should be in every major groove of a tire that is not in the front of a commercial motor vehicle.
For safe operation, a commercial motor vehicle needs a tread depth of 4/32 of an inch in every major groove on the front tires, and a tread depth of 2/32 of an inch on other tires.
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2025 Montana | Frequently Asked Questions
A CDL Class A license in Montana is defined as a commercial driver's license permitting the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the GVWR of the vehicle(s) being towed is over 10,000 pounds. It covers vehicles like tractor-trailers, truck and trailer combinations.
A Class A CDL license in Montana allows you to operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, and livestock carriers. It covers any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the towed vehicle(s) is over 10,000 pounds.
To obtain a Class A CDL license in Montana, you must be at least 18 years old (21 for interstate driving), possess a valid Montana driver's license, pass a vision test, and successfully complete both a written knowledge test and a skills test which includes a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving exam.
In Montana, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving (within Montana only). However, to drive interstate (across state lines) or carry hazardous materials, you must be at least 21 years old.
Endorsements are not required for a Class A CDL license, but they provide additional driving privileges. For instance, you may need a Hazardous Materials (H) endorsement to haul hazardous freight, a Tank (N) endorsement to drive tank vehicles, or a Passenger (P) endorsement to transport passengers. Each endorsement requires passing a specific knowledge test.
The Class A CDL skills test in Montana includes three sections: a pre-trip vehicle inspection to ensure the vehicle is safe to drive, a basic vehicle control test to verify your ability to control the vehicle, and an on-road driving exam to assess your ability to drive the vehicle in various road and traffic conditions.
Yes, there are limitations imposed on Class A CDL license holders. Some limitations or restrictions may include: not being permitted to operate a manual transmission if you passed your test in an automatic vehicle, not being allowed to drive a school bus without the proper endorsement, or being required to wear corrective lenses while driving if it's indicated on the license.
In Montana, the written Class A CDL test is primarily administered in English. This is in line with Federal regulations requiring all commercial drivers to read and speak English sufficiently to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, in Montana, accommodations can be made for the Class A CDL written test if you have a disability. You'll need to provide documentation of your disability and specify the type of accommodation needed. It's recommended to contact the Montana Motor Vehicle Division beforehand to ensure all necessary arrangements are made.
Yes, if you don't pass the Class A CDL written test in Montana, you can retake it. However, you must wait at least one day before attempting the test again. Keep in mind that each retest may involve additional fees. It's recommended to review and study the areas you struggled with before retaking the test.
