Double
This endorsement is required if the driver will pull two or three trailers. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. To pass, the applicant must answer at least 16 questions correctly. Each question has three possible answer choices. Test questions come from the New Mexico Commercial Driver License Manual. Questions come from chapters covering: Driving Safely, Air Brakes (if applicable), Combination Vehicles and Doubles and Triples. The Double/Triple endorsement can be used with the Class A CDL.
Number of Question
Passing Score
8. If turning to avoid a hazard:
Explanation
You should not brake while making a quick turn to avoid a hazard. Doing so could cause your wheels to lock and make your vehicle skid out of control.
9. Within 10 minutes of stopping on the side of the road, you must:
Explanation
If you must stop on the side of the road, you must place the appropriate emergency warning devices within 10 minutes of stopping.
10. Having anti-lock brakes on only one axle:
Explanation
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.
11. ____ is a thin layer of ice that forms on road surfaces.
Explanation
Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. A road covered in black ice may look like it is merely wet instead of icy. Always be on the lookout for black ice if a road surface looks wet and temperatures are around the freezing mark.
12. When operating a set of doubles, the shut-off valves at the rear of the first trailer should be in their:
Explanation
When operating a double or triple, the shut-off valves at the rear of last trailer should be closed. All other shut-off valves should be open.
13. When in heavy traffic, the safest driving speed is:
Explanation
In heavy traffic, it is safest to travel at the same speed as other vehicles. If two vehicles continue to drive in the same direction at the same speed, they cannot hit each other.
14. An exhaust system should be:
Explanation
When inspecting an exhaust system, you should verify that parts of the system are not loose, broken, or missing. The system's parts must be properly mounted and should not be rubbing against moving parts of the vehicle.
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Frequently Asked Questions
To obtain a CDL Doubles/Triples endorsement in New Mexico, you need to follow these steps:
1. Obtain a New Mexico Commercial Driver's License (CDL): To apply for a CDL, you must be at least 18 years old and have a valid New Mexico driver's license. You must also pass a vision exam, knowledge test, and skills test.
2. Meet the eligibility requirements: To apply for a Doubles/Triples endorsement, you must already hold a valid New Mexico CDL and have a clean driving record. You must also pass the knowledge test for the Doubles/Triples endorsement.
3. Study for the Doubles/Triples endorsement: The knowledge test for the Doubles/Triples endorsement covers topics such as coupling and uncoupling, inspecting doubles/triples, and driving doubles/triples. You can obtain study materials from the New Mexico Motor Vehicle Division (MVD) or through third-party providers.
4. Schedule and take the knowledge test: You can schedule your knowledge test at any New Mexico MVD office. The test consists of 20 multiple-choice questions, and you must score at least 80% to pass.
5. Pay the fee: To obtain the Doubles/Triples endorsement, you must pay a fee of $5 in addition to any other applicable CDL fees.
6. Obtain your new CDL: Once you have passed the knowledge test and paid the fee, your CDL will be updated to include the Doubles/Triples endorsement.
Remember to also maintain your CDL by renewing it every four years and complying with all state and federal regulations related to commercial driving.
1. Obtain a New Mexico Commercial Driver's License (CDL): To apply for a CDL, you must be at least 18 years old and have a valid New Mexico driver's license. You must also pass a vision exam, knowledge test, and skills test.
2. Meet the eligibility requirements: To apply for a Doubles/Triples endorsement, you must already hold a valid New Mexico CDL and have a clean driving record. You must also pass the knowledge test for the Doubles/Triples endorsement.
3. Study for the Doubles/Triples endorsement: The knowledge test for the Doubles/Triples endorsement covers topics such as coupling and uncoupling, inspecting doubles/triples, and driving doubles/triples. You can obtain study materials from the New Mexico Motor Vehicle Division (MVD) or through third-party providers.
4. Schedule and take the knowledge test: You can schedule your knowledge test at any New Mexico MVD office. The test consists of 20 multiple-choice questions, and you must score at least 80% to pass.
5. Pay the fee: To obtain the Doubles/Triples endorsement, you must pay a fee of $5 in addition to any other applicable CDL fees.
6. Obtain your new CDL: Once you have passed the knowledge test and paid the fee, your CDL will be updated to include the Doubles/Triples endorsement.
Remember to also maintain your CDL by renewing it every four years and complying with all state and federal regulations related to commercial driving.
To obtain a CDL Doubles/Triples license in New Mexico, you need to meet the following requirements:
1. Be at least 18 years old: To apply for a CDL Doubles/Triples license, you must be at least 18 years old. However, you must be at least 21 years old to drive a commercial vehicle across state lines or transport hazardous materials.
2. Hold a valid New Mexico CDL: You must already hold a valid New Mexico Commercial Driver's License (CDL) to apply for a Doubles/Triples endorsement. If you do not have a CDL, you must apply for one first and then apply for the endorsement.
3. Have a clean driving record: You must have a clean driving record with no serious traffic violations or suspensions in the past two years.
4. Pass the Doubles/Triples knowledge test: You must pass the knowledge test for the Doubles/Triples endorsement, which covers topics such as coupling and uncoupling, inspecting doubles/triples, and driving doubles/triples.
5. Pay the required fees: You must pay a fee of $5 in addition to any other applicable CDL fees.
It is important to note that obtaining a CDL Doubles/Triples license also requires additional training and skills testing beyond what is required for a standard CDL license. You will need to demonstrate proficiency in controlling and maneuvering a commercial vehicle with multiple trailers attached during your skills test.
1. Be at least 18 years old: To apply for a CDL Doubles/Triples license, you must be at least 18 years old. However, you must be at least 21 years old to drive a commercial vehicle across state lines or transport hazardous materials.
2. Hold a valid New Mexico CDL: You must already hold a valid New Mexico Commercial Driver's License (CDL) to apply for a Doubles/Triples endorsement. If you do not have a CDL, you must apply for one first and then apply for the endorsement.
3. Have a clean driving record: You must have a clean driving record with no serious traffic violations or suspensions in the past two years.
4. Pass the Doubles/Triples knowledge test: You must pass the knowledge test for the Doubles/Triples endorsement, which covers topics such as coupling and uncoupling, inspecting doubles/triples, and driving doubles/triples.
5. Pay the required fees: You must pay a fee of $5 in addition to any other applicable CDL fees.
It is important to note that obtaining a CDL Doubles/Triples license also requires additional training and skills testing beyond what is required for a standard CDL license. You will need to demonstrate proficiency in controlling and maneuvering a commercial vehicle with multiple trailers attached during your skills test.
Yes, you do need specific experience and training to obtain a CDL Doubles/Triples endorsement in New Mexico.
According to the Federal Motor Carrier Safety Administration (FMCSA), you must have a minimum of 90 days of experience operating a commercial motor vehicle (CMV) with a Class A CDL before you can apply for a Doubles/Triples endorsement. This means that you must have already completed the training and testing required to obtain a Class A CDL.
In addition to the experience requirement, you will also need to undergo specialized training in order to safely operate a CMV with multiple trailers. The training should cover topics such as:
- How to couple and uncouple doubles/triples
- How to inspect doubles/triples
- How to safely drive doubles/triples
- How to handle emergencies or unexpected situations while driving doubles/triples
This training can be provided by an employer, a truck driving school, or other qualified trainers. You may also need to provide documentation of your training when applying for the Doubles/Triples endorsement.
Once you have completed the required training and have the necessary experience, you can then take the knowledge test and skills test for the Doubles/Triples endorsement.
According to the Federal Motor Carrier Safety Administration (FMCSA), you must have a minimum of 90 days of experience operating a commercial motor vehicle (CMV) with a Class A CDL before you can apply for a Doubles/Triples endorsement. This means that you must have already completed the training and testing required to obtain a Class A CDL.
In addition to the experience requirement, you will also need to undergo specialized training in order to safely operate a CMV with multiple trailers. The training should cover topics such as:
- How to couple and uncouple doubles/triples
- How to inspect doubles/triples
- How to safely drive doubles/triples
- How to handle emergencies or unexpected situations while driving doubles/triples
This training can be provided by an employer, a truck driving school, or other qualified trainers. You may also need to provide documentation of your training when applying for the Doubles/Triples endorsement.
Once you have completed the required training and have the necessary experience, you can then take the knowledge test and skills test for the Doubles/Triples endorsement.
Yes, in New Mexico, there is an additional written test that you must pass to obtain a CDL Doubles/Triples endorsement. This written test is in addition to the tests you must take to obtain your initial CDL.
The Doubles/Triples endorsement test covers topics such as:
- Inspecting doubles/triples
- Coupling and uncoupling
- Driving doubles/triples safely
- Weight distribution and balance
- Emergency procedures
You must pass the Doubles/Triples endorsement test to add the endorsement to your CDL. The test consists of 20 multiple-choice questions, and you must answer at least 16 of them correctly to pass.
It's important to note that preparing for the Doubles/Triples endorsement test requires specialized knowledge and training beyond what is required for a standard CDL. Therefore, it's recommended that you undergo additional training and/or study materials before taking the test.
In addition to the written test, you will also need to pass a skills test that specifically evaluates your ability to operate a commercial vehicle with multiple trailers attached. The skills test will evaluate your ability to perform maneuvers such as backing up, turning, and coupling/uncoupling trailers.
The Doubles/Triples endorsement test covers topics such as:
- Inspecting doubles/triples
- Coupling and uncoupling
- Driving doubles/triples safely
- Weight distribution and balance
- Emergency procedures
You must pass the Doubles/Triples endorsement test to add the endorsement to your CDL. The test consists of 20 multiple-choice questions, and you must answer at least 16 of them correctly to pass.
It's important to note that preparing for the Doubles/Triples endorsement test requires specialized knowledge and training beyond what is required for a standard CDL. Therefore, it's recommended that you undergo additional training and/or study materials before taking the test.
In addition to the written test, you will also need to pass a skills test that specifically evaluates your ability to operate a commercial vehicle with multiple trailers attached. The skills test will evaluate your ability to perform maneuvers such as backing up, turning, and coupling/uncoupling trailers.
During the CDL Doubles/Triples endorsement test in New Mexico, you will need to demonstrate your ability to safely operate a commercial vehicle with multiple trailers attached. The skills test will evaluate your ability to perform specific maneuvers, such as:
1. Pre-trip Inspection: You will need to perform a thorough inspection of your vehicle and identify any potential safety hazards or equipment defects.
2. Coupling and Uncoupling: You will need to demonstrate your ability to properly couple and uncouple the trailers, including connecting and disconnecting the air lines, electrical cables, and safety chains.
3. Straight Line Backing: You will need to demonstrate your ability to safely back up the vehicle in a straight line for a distance of at least 100 feet.
4. Offset Backing: You will need to demonstrate your ability to safely back up the vehicle into a space that is offset to either side of the trailer.
5. Parallel Parking: You will need to demonstrate your ability to safely back up the vehicle into a space that is parallel to the trailer.
6. Alley Docking: You will need to demonstrate your ability to safely maneuver the vehicle through a narrow alleyway and back it into a dock or loading area.
It's important to note that the specific maneuvers that you will be required to perform may vary depending on the testing location and examiner. Therefore, it's recommended that you practice all of these maneuvers extensively before taking the test.
1. Pre-trip Inspection: You will need to perform a thorough inspection of your vehicle and identify any potential safety hazards or equipment defects.
2. Coupling and Uncoupling: You will need to demonstrate your ability to properly couple and uncouple the trailers, including connecting and disconnecting the air lines, electrical cables, and safety chains.
3. Straight Line Backing: You will need to demonstrate your ability to safely back up the vehicle in a straight line for a distance of at least 100 feet.
4. Offset Backing: You will need to demonstrate your ability to safely back up the vehicle into a space that is offset to either side of the trailer.
5. Parallel Parking: You will need to demonstrate your ability to safely back up the vehicle into a space that is parallel to the trailer.
6. Alley Docking: You will need to demonstrate your ability to safely maneuver the vehicle through a narrow alleyway and back it into a dock or loading area.
It's important to note that the specific maneuvers that you will be required to perform may vary depending on the testing location and examiner. Therefore, it's recommended that you practice all of these maneuvers extensively before taking the test.
No, in New Mexico, you cannot operate a commercial motor vehicle with double or triple trailers without a CDL Doubles/Triples endorsement. A CDL with a Doubles/Triples endorsement is required for anyone who operates a commercial vehicle with two or three trailers attached.
It’s important to note that operating a commercial vehicle with multiple trailers attached comes with additional risks and requires specialized knowledge and training beyond what is required for a standard CDL. Therefore, it's recommended that you undergo additional training and/or study materials before taking the Doubles/Triples endorsement test.
If you are caught operating a commercial vehicle with multiple trailers without the appropriate CDL endorsement, you may face fines, penalties, and/or the suspension or revocation of your CDL. Additionally, if you are involved in an accident while operating an unendorsed commercial vehicle, you may be held liable for any damages or injuries that result.
It’s important to note that operating a commercial vehicle with multiple trailers attached comes with additional risks and requires specialized knowledge and training beyond what is required for a standard CDL. Therefore, it's recommended that you undergo additional training and/or study materials before taking the Doubles/Triples endorsement test.
If you are caught operating a commercial vehicle with multiple trailers without the appropriate CDL endorsement, you may face fines, penalties, and/or the suspension or revocation of your CDL. Additionally, if you are involved in an accident while operating an unendorsed commercial vehicle, you may be held liable for any damages or injuries that result.
In New Mexico, you can add the CDL Doubles/Triples endorsement to your existing CDL license. To add the endorsement, you will need to:
1. Study for the Doubles/Triples endorsement test using the New Mexico CDL manual and other study materials.
2. Schedule and pass the Doubles/Triples endorsement knowledge test at a New Mexico Motor Vehicle Division (MVD) office.
3. Schedule and pass a skills test that includes demonstrating your ability to safely operate a commercial vehicle with multiple trailers attached.
4. Pay a fee to add the endorsement to your CDL license.
Once you have passed both tests and paid the fee, the CDL Doubles/Triples endorsement will be added to your existing CDL license. You will not need to apply for a new license.
It's important to note that adding a CDL endorsement may also require additional background checks, medical exams, or other requirements depending on the specifics of your situation. Therefore, it's recommended that you contact your local New Mexico MVD office or consult with a qualified commercial driving instructor for more information on the specific steps involved in adding a CDL endorsement.
1. Study for the Doubles/Triples endorsement test using the New Mexico CDL manual and other study materials.
2. Schedule and pass the Doubles/Triples endorsement knowledge test at a New Mexico Motor Vehicle Division (MVD) office.
3. Schedule and pass a skills test that includes demonstrating your ability to safely operate a commercial vehicle with multiple trailers attached.
4. Pay a fee to add the endorsement to your CDL license.
Once you have passed both tests and paid the fee, the CDL Doubles/Triples endorsement will be added to your existing CDL license. You will not need to apply for a new license.
It's important to note that adding a CDL endorsement may also require additional background checks, medical exams, or other requirements depending on the specifics of your situation. Therefore, it's recommended that you contact your local New Mexico MVD office or consult with a qualified commercial driving instructor for more information on the specific steps involved in adding a CDL endorsement.
Yes, there are restrictions and limitations for drivers with a CDL Doubles/Triples endorsement in New Mexico. Some of the key restrictions and limitations include:
1. Vehicle weight: Drivers with a Doubles/Triples endorsement are limited to operating vehicles with a combined gross vehicle weight rating (GVWR) of 80,000 pounds or less.
2. Trailer length: Drivers with a Doubles/Triples endorsement are limited to operating vehicles with two trailers that are each 28 feet in length or less.
3. Trailer weight: Drivers with a Doubles/Triples endorsement are limited to operating vehicles where the weight of each trailer does not exceed 28,000 pounds.
4. Turning radius: Vehicles with multiple trailers require more space to turn, so drivers with a Doubles/Triples endorsement must be aware of their vehicle's turning radius and be cautious when turning.
5. Braking distance: Vehicles with multiple trailers have a longer stopping distance than those with only one trailer, so drivers with a Doubles/Triples endorsement must leave plenty of space between their vehicle and other vehicles on the road.
It's important to note that these restrictions and limitations may vary depending on the specific type of vehicle and trailer being operated, as well as other factors such as road conditions or weather. Therefore, it's recommended that drivers with a Doubles/Triples endorsement receive additional training or consult with a qualified commercial driving instructor to ensure they are aware of all restrictions and limitations that apply to their specific situation.
1. Vehicle weight: Drivers with a Doubles/Triples endorsement are limited to operating vehicles with a combined gross vehicle weight rating (GVWR) of 80,000 pounds or less.
2. Trailer length: Drivers with a Doubles/Triples endorsement are limited to operating vehicles with two trailers that are each 28 feet in length or less.
3. Trailer weight: Drivers with a Doubles/Triples endorsement are limited to operating vehicles where the weight of each trailer does not exceed 28,000 pounds.
4. Turning radius: Vehicles with multiple trailers require more space to turn, so drivers with a Doubles/Triples endorsement must be aware of their vehicle's turning radius and be cautious when turning.
5. Braking distance: Vehicles with multiple trailers have a longer stopping distance than those with only one trailer, so drivers with a Doubles/Triples endorsement must leave plenty of space between their vehicle and other vehicles on the road.
It's important to note that these restrictions and limitations may vary depending on the specific type of vehicle and trailer being operated, as well as other factors such as road conditions or weather. Therefore, it's recommended that drivers with a Doubles/Triples endorsement receive additional training or consult with a qualified commercial driving instructor to ensure they are aware of all restrictions and limitations that apply to their specific situation.
In New Mexico, the maximum weight and length limits for double/triple trailers with a CDL Doubles/Triples endorsement are as follows:
1. Maximum weight: The combined gross vehicle weight rating (GVWR) for the truck and trailers must not exceed 80,000 pounds.
2. Maximum length: The maximum length of each trailer is 28 feet, and the maximum overall length of the truck and trailers combined is 65 feet.
It's important to note that these limits may vary depending on the specific type of vehicle and trailer being operated, as well as other factors such as road conditions or weather. Therefore, it's recommended that drivers with a Doubles/Triples endorsement receive additional training or consult with a qualified commercial driving instructor to ensure they are aware of all weight and length limits that apply to their specific situation.
1. Maximum weight: The combined gross vehicle weight rating (GVWR) for the truck and trailers must not exceed 80,000 pounds.
2. Maximum length: The maximum length of each trailer is 28 feet, and the maximum overall length of the truck and trailers combined is 65 feet.
It's important to note that these limits may vary depending on the specific type of vehicle and trailer being operated, as well as other factors such as road conditions or weather. Therefore, it's recommended that drivers with a Doubles/Triples endorsement receive additional training or consult with a qualified commercial driving instructor to ensure they are aware of all weight and length limits that apply to their specific situation.
Yes, there are specific safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in New Mexico. Here are some of the most important regulations:
1. Proper loading: Double/triple trailers must be loaded properly to ensure that the weight is distributed evenly and that the trailers are not overloaded. Overloading can lead to tire blowouts, brake failure, and other dangerous situations.
2. Adjusting mirrors: Because double/triple trailers are longer than single trailers, drivers must adjust their mirrors to ensure they have a clear view of all vehicles behind and beside them.
3. Wide turns: Double/triple trailers require more space to turn than single trailers, so drivers must be cautious and make wide turns to avoid hitting curbs or other obstacles.
4. Safe following distance: Double/triple trailers have a longer stopping distance than single trailers, so drivers must leave plenty of space between their vehicle and other vehicles on the road.
5. Brake requirements: Double/triple trailers have specific brake requirements to ensure that they can stop safely. Drivers must be familiar with these requirements and ensure that their brakes are in good working order before operating a double/triple trailer.
It's important for drivers with a CDL Doubles/Triples endorsement to receive proper training in order to safely operate double/triple trailers. They should also stay up-to-date on any changes to regulations or safety considerations related to operating these types of vehicles.
1. Proper loading: Double/triple trailers must be loaded properly to ensure that the weight is distributed evenly and that the trailers are not overloaded. Overloading can lead to tire blowouts, brake failure, and other dangerous situations.
2. Adjusting mirrors: Because double/triple trailers are longer than single trailers, drivers must adjust their mirrors to ensure they have a clear view of all vehicles behind and beside them.
3. Wide turns: Double/triple trailers require more space to turn than single trailers, so drivers must be cautious and make wide turns to avoid hitting curbs or other obstacles.
4. Safe following distance: Double/triple trailers have a longer stopping distance than single trailers, so drivers must leave plenty of space between their vehicle and other vehicles on the road.
5. Brake requirements: Double/triple trailers have specific brake requirements to ensure that they can stop safely. Drivers must be familiar with these requirements and ensure that their brakes are in good working order before operating a double/triple trailer.
It's important for drivers with a CDL Doubles/Triples endorsement to receive proper training in order to safely operate double/triple trailers. They should also stay up-to-date on any changes to regulations or safety considerations related to operating these types of vehicles.
