Combination #2
Combination Vehicles Practice Test | New Mexico 2024 #2 Page 3 of 3
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 2024, 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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15 . 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.
16 . Having anti-lock brakes on only one axle:
If a vehicle has anti-lock brakes on just one axle, the driver will still have more control during braking than they would without any anti-lock brakes.
17 . The trailer hand valve:
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. Instead, use the parking brake or wheel chocks.
18 . To find out if a vehicle that was built before 1998 has an Anti-Lock Braking System (ABS), you can:
If you are operating a vehicle built before 1998 and are unsure if the trailer has an Anti-Lock Braking System (ABS), you can check under the trailer for wheel speed sensors coming from the back of the brakes.
19 . 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.
20 . When testing ____, you should apply your vehicle's brakes with the hand control while moving the vehicle forward slowly.
To test the trailer service brakes, you should first ensure that the braking system has a normal air pressure level, then release the parking brake. You should then move the vehicle forward slowly and apply the brakes with the hand control. If the trailer service brakes are working properly, you will feel the brakes activate.
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2024 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.
