Knowledge Test Class B #1
Class B Driving Test | New Mexico 2025 #1 Page 7 of 7
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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43 . Air tank drains:
Compressed air in an air brake system usually has a certain amount of water and oil in it. This can harm the system if allowed to accumulate. Air tanks have drain valves to aid in removing water and oil from the compressed air.
44 . The safety belt should:
When inspecting your vehicle, you should verify that the safety belt is securely mounted, adjusts, latches properly, and is not ripped or frayed.
45 . When coming to a stop, you should apply the brake pedal by:
When stopping, you should push the brake pedal down gradually. Braking gradually will help you to maintain proper control of your vehicle.
46 . On flat surfaces, wheel chocks:
In situations where a driver cannot use a parking brake, wheel chocks can be used to hold a parked vehicle in place on a level surface.
47 . Without engine oil:
It is essential that a vehicle's engine have adequate oil pressure. An engine can be destroyed rapidly if it is run without oil.
48 . When changing lanes:
Always use your turn signals and check your mirrors when changing lanes.
49 . When adjusting your mirrors before a trip:
When properly adjusted, your mirrors should each display some part of your vehicle. Being able to see your own vehicle in your mirrors will give you a point of reference when judging the positions of other objects.
50 . Which of the following is not a sign of fatigue?
Potential warning signs of fatigue include difficulty focusing, frequent blinking, or heavy eyelids; yawning repeatedly or rubbing your eyes; daydreaming; wandering or disconnected thoughts; trouble remembering the last few miles you've driven; missing exits or traffic signs; having trouble keeping your head up; drifting from your lane; following too closely; hitting a shoulder rumble strip; or feeling restless and irritable.
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2025 New Mexico | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in New Mexico, you must first possess a valid New Mexico commercial driver's license (CDL). Then, you'll need to pass a written knowledge test specific to operating double/triple trailers. The test covers topics like coupling and uncoupling, inspecting doubles and triples, and handling. Once you pass the test, the endorsement is added to your CDL.
To obtain a CDL Doubles/Triples license, you must already have a Commercial Driver's License (CDL). You'll need to study for and pass a written knowledge test that covers specific aspects of driving double/triple trailers, such as inspecting the vehicles, coupling and uncoupling, and handling. After successfully passing the test, the endorsement will be added to your CDL.
While there's no specific requirement for specialized experience or training to get a CDL Doubles/Triples endorsement in New Mexico, it's highly recommended. This endorsement requires passing a written test about operating double/triple trailers, so studying the CDL manual or taking a training course can be beneficial to understand the nuances of handling these larger vehicles.
Yes, to get a CDL Doubles/Triples endorsement in New Mexico, you must pass a specific written knowledge test. This test covers topics such as how to couple and uncouple correctly, inspect doubles and triples, and the proper procedures for towing double/triple trailers. There's no additional driving test required beyond the standard CDL skills test.
The CDL Doubles/Triples endorsement test is a written examination, so there are no specific skills or maneuvers to showcase. The test assesses your knowledge on safety regulations, coupling and uncoupling, inspecting doubles and triples, and pulling double/triple trailers. It's important to study these areas thoroughly in preparation for the test.
No, it's not permissible to operate double or triple trailers without a valid CDL Doubles/Triples endorsement in New Mexico. Operating such vehicles without the necessary endorsement can result in severe penalties including fines, suspension of your CDL, or even jail time. Always ensure you have the proper endorsements for the type of vehicle you're operating.
You can append the CDL Doubles/Triples endorsement to your current commercial driver's license. You don't need to initiate a new application for a license. However, you will need to pass the specific written knowledge test for doubles/triples endorsement and pay any associated fees.
Yes, there are limitations for drivers holding a CDL Doubles/Triples endorsement. For instance, they must obey weight restrictions for double and triple trailers. Additionally, some states or cities may have restrictions on where and when double or triple trailers can be driven due to safety concerns. Always check local regulations before driving.
In New Mexico, a double trailer can't exceed 81.5 feet in length and 129,000 pounds in weight. For triple trailers, the maximum length is 105 feet and the weight can't exceed 110,000 pounds. These limits include the tractor and all trailers. However, specific routes may have additional restrictions or allowances. Always check local regulations before operating these vehicles.
Yes, drivers with a CDL Doubles/Triples endorsement must follow specific safety regulations. These include conducting pre-trip inspections, understanding how to couple and uncouple correctly, and knowing the special considerations for driving. These involve avoiding sudden movements, maintaining a safe following distance, and understanding the high rollover risk associated with these vehicles.
