Combination #1
Combination Vehicles Practice Test | New Mexico 2025 #1
Train for FREE online with our New Mexico 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 NM combination license 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 DMV requirements for issuing a combination license may vary from state to state.
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1 . What is a bobtail tractor?
Tractors without semi-trailers are referred to as "bobtail tractors." Bobtail tractors are difficult to operate and drivers must exercise caution.
2 . If the emergency air line loses pressure:
The emergency air line controls the emergency brakes on a combination vehicle. A loss of air pressure in the emergency line will cause the emergency trailer brakes to activate.
3 . What does an Anti-Lock Braking System (ABS) do?
An Anti-Lock Braking System (ABS) helps prevent wheel lockup during hard braking. If ABS detects impending lockup, it reduces braking pressure to a safe level.
4 . When driving while pulling trailers, you should:
You should always steer gently and smoothly while pulling a trailer. Making sudden steering moves could cause the trailer to tip over.
5 . When braking while pulling a trailer equipped with anti-lock brakes, you should:
When driving a tractor-trailer combination that is equipped with an Anti-Lock Braking System (ABS), you should brake in the same manner that you would if the vehicle was not equipped with ABS.
6 . The trailer hand valve should be used:
The trailer hand valve (also referred to as the "trolley valve" or "Johnson bar") works the trailer brakes and should be used only when testing them. Using the trailer hand valve while driving could result in a skid.
7 . Combination vehicles:
Driving combination vehicles requires more skill than driving single commercial vehicles. Combinations are generally longer, generally heavier, and are more vulnerable to rollover.
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.