Knowledge Test Class B #1
Class B Driving Test | New Mexico 2025 #1
Train for FREE online with our New Mexico class B 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 NM CDL class B 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 B requirements may vary from state to state.
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1 . In a dual air brake system:
There are two air brake systems in a dual air brake system. The systems share a set of brake controls, but each system has its own tanks, hoses, and lines.
2 . On slippery roads, you should:
On a slippery road, you must adjust your driving speed to fit conditions. Because it will take longer for your vehicle to stop on a slippery road than on a dry road, you should increase your following distance when conditions are slippery. Avoid driving in a way that requires you to change speeds frequently.
3 . A low air pressure warning signal should activate:
When tank pressure falls below 5 psi.
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
4 . Some air brake systems introduce alcohol into the system to:
Some air brake systems contain an alcohol evaporator. An evaporator introduces alcohol into the system to help inhibit the formation of ice in cold weather.
5 . When alley docking, you should first:
If you are asked to alley dock, you should first pull past the alley and stop your vehicle in a position that is parallel to the outer boundary. From there, you should back your vehicle entirely into the alley parking area. Your vehicle should be parked in a straight position within the boundaries of the parking space.
6 . While operating on a downgrade, you should brake until you reach a speed that is:
While driving downhill, you should hold down the brake pedal until your vehicle reaches a speed 5 mph below your safe speed, then release the brake pedal. Repeat this process.
7 . When pulled over to the side of the road, you should:
When stopped on the side of the road, be sure to turn on your vehicle's four-way emergency flashers, especially during times of lowered visibility. Place warning devices within 10 minutes of being stopped.
See the exact questions that will be on the 2025 New Mexico DMV exam.
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2025 New Mexico | Frequently Asked Questions
A CDL Class A license in New Mexico allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 lbs or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is over 10,000 lbs. It includes tractor-trailers, truck and trailer combinations, and flatbeds.
A Class A CDL (Commercial Driver's License) in New Mexico allows you to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 lbs or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is over 10,000 lbs. This includes tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds.
To obtain a Class A CDL in New Mexico, you must be at least 18 years old (21 for interstate driving), possess a valid New Mexico driver's license, and pass a vision test. You'll also need to pass a written knowledge exam, obtain a commercial learner's permit (CLP), and pass a skills test, which includes a pre-trip vehicle inspection, a basic control skills test, and an on-road driving exam.
In New Mexico, you must be at least 18 years old to qualify for a Class A CDL license. However, this will only allow you to operate a commercial vehicle within the state (intrastate). If you intend to drive a commercial vehicle across state lines (interstate), or carry hazardous materials, you must be at least 21 years old.
Specific endorsements aren't required for a Class A CDL license in New Mexico, but they may be necessary depending on the type of vehicle you plan to drive or the cargo you'll transport. Endorsements include: T for double/triple trailers, P for passenger vehicles, N for tank vehicles, H for hazardous materials, and S for school buses.
The Class A CDL skills test in New Mexico encompasses three parts: a pre-trip vehicle inspection to verify your ability to assess the safety of your vehicle, a basic control skills test to evaluate your ability to control the vehicle (like backing up), and an on-road driving test where you'll demonstrate safe driving practices in various road and traffic conditions.
Yes, there are limitations. Class A CDL license holders in New Mexico are not allowed to operate a vehicle with a Gross Vehicle Weight Rating (GVWR) of more than 26,001 pounds, or tow a vehicle heavier than 10,000 pounds, unless they have the appropriate endorsements. Also, drivers under 21 are restricted to intrastate transportation only.
Yes, it's possible. In New Mexico, the Class A CDL written test is available in English and Spanish. However, federal regulations require that all CDL holders must be able 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, accommodations can be made for the Class A CDL written test in New Mexico for individuals with disabilities. However, you must provide appropriate documentation of your disability and specific accommodation needs. It's recommended to contact the New Mexico Motor Vehicle Division beforehand to arrange these accommodations.
Yes, if you don't pass the Class A CDL written test in New Mexico, you can retake it. However, you must wait at least one day before retesting. If you fail the test three times, you must wait 6 months before trying again. It's important to thoroughly study and prepare to increase your chances of passing.
