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 Arizona 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
1. If you realize you may be running late to your destination, you should:
Explanation
To reduce the risk of developing aggressive driving behavior, you should take measures to manage your stress. One strategy to do this is to simply take a deep breath and accept your circumstances if you realize you will be late to your destination.
2. What helps prevent wheel lockup when braking?
Explanation
The purpose of an Anti-Lock Braking System (ABS) is to prevent wheel lockup while brakes are being applied.
3. Alcohol evaporators are:
Explanation
Some air brake systems include an alcohol evaporator. The evaporator introduces alcohol into the braking system to prevent the formation of ice, which can cause damage.
4. 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.
5. After completing a pre-trip inspection, you should ensure that the:
Explanation
Before a trip, you should ensure that air reaches all air brakes on all trailers by opening up the rear emergency line and service line shut-off valves and listening for escaping air. Close both shut-off valves before beginning to drive.
6. Skids caused by over-acceleration can usually be resolved by:
Explanation
A skid caused by over-acceleration can be resolved simply by removing your foot from the accelerator. Skids of this nature happen most frequently on surfaces covered in snow or ice.
7. A driver who stops at a green light could be:
Explanation
It is important to observe other drivers' actions and identify clues that a person could be driving impaired. Drivers who have had too much to drink, are sleepy, are on drugs, or are ill can present hazards to other drivers. One sign that a driver may be impaired is that they stop in inappropriate places, such as at green traffic lights.
Frequently Asked Questions
To obtain a CDL Doubles/Triples endorsement in Arizona, follow these steps:
1. Obtain a current Arizona Commercial Driver's License (CDL) or be eligible for one.
2. Study the Arizona Commercial Driver License Manual thoroughly, paying special attention to the sections related to Doubles/Triples.
3. Schedule an appointment to take the Doubles/Triples CDL endorsement knowledge test at an Arizona Motor Vehicle Division (MVD) office.
4. Bring the necessary identification documents, such as your valid CDL and proof of citizenship or legal presence in the United States, to the MVD office on the day of your appointment.
5. Pass the Doubles/Triples endorsement knowledge test with a score of at least 80%.
6. Pay the required fee for the endorsement.
7. If you are adding this endorsement to your existing CDL, your new license will be issued with the endorsement added. If you are obtaining a new CDL with this endorsement, you will need to complete any additional requirements for obtaining a new CDL.
It is important to note that driving doubles/triples vehicles requires additional skill and training beyond what is required for a standard commercial driver's license. It is recommended that you seek out additional training and practice before operating these types of vehicles on public roads.
1. Obtain a current Arizona Commercial Driver's License (CDL) or be eligible for one.
2. Study the Arizona Commercial Driver License Manual thoroughly, paying special attention to the sections related to Doubles/Triples.
3. Schedule an appointment to take the Doubles/Triples CDL endorsement knowledge test at an Arizona Motor Vehicle Division (MVD) office.
4. Bring the necessary identification documents, such as your valid CDL and proof of citizenship or legal presence in the United States, to the MVD office on the day of your appointment.
5. Pass the Doubles/Triples endorsement knowledge test with a score of at least 80%.
6. Pay the required fee for the endorsement.
7. If you are adding this endorsement to your existing CDL, your new license will be issued with the endorsement added. If you are obtaining a new CDL with this endorsement, you will need to complete any additional requirements for obtaining a new CDL.
It is important to note that driving doubles/triples vehicles requires additional skill and training beyond what is required for a standard commercial driver's license. It is recommended that you seek out additional training and practice before operating these types of vehicles on public roads.
To get a CDL Doubles/Triples license in Arizona, you must meet the following requirements:
1. Be at least 21 years of age.
2. Hold a current Arizona CDL or be eligible for one.
3. Pass the Arizona CDL Doubles/Triples endorsement knowledge test.
4. Provide proof of citizenship or legal presence in the United States.
5. Complete a Department of Transportation (DOT) physical exam and receive a medical certificate stating that you are physically able to operate a commercial vehicle.
6. Have a clean driving record with no serious traffic violations or DUI convictions in the past three years.
7. Provide proof of insurance for any vehicle you plan to operate with your CDL Doubles/Triples license.
It is important to note that driving doubles/triples vehicles requires additional skill and training beyond what is required for a standard commercial driver's license. It is recommended that you seek out additional training and practice before operating these types of vehicles on public roads.
1. Be at least 21 years of age.
2. Hold a current Arizona CDL or be eligible for one.
3. Pass the Arizona CDL Doubles/Triples endorsement knowledge test.
4. Provide proof of citizenship or legal presence in the United States.
5. Complete a Department of Transportation (DOT) physical exam and receive a medical certificate stating that you are physically able to operate a commercial vehicle.
6. Have a clean driving record with no serious traffic violations or DUI convictions in the past three years.
7. Provide proof of insurance for any vehicle you plan to operate with your CDL Doubles/Triples license.
It is important to note that driving doubles/triples vehicles requires additional skill and training beyond what is required for a standard commercial driver's license. It is recommended that you seek out additional training and practice before operating these types of vehicles on public roads.
Yes, you are required to have specific experience and training to obtain a CDL Doubles/Triples endorsement in Arizona.
First, you must hold a valid Class A CDL license before you can apply for the Doubles/Triples endorsement. You must also have at least one year of experience operating a Class A commercial vehicle before being eligible for the endorsement.
Additionally, you may want to consider completing a specialized training program that focuses on driving doubles/triples vehicles. This training will provide you with the knowledge and skills necessary to safely operate these types of vehicles on public roads.
It is important to note that driving doubles/triples vehicles requires additional skill and training beyond what is required for a standard commercial driver's license. It is recommended that you seek out additional training and practice before operating these types of vehicles on public roads.
First, you must hold a valid Class A CDL license before you can apply for the Doubles/Triples endorsement. You must also have at least one year of experience operating a Class A commercial vehicle before being eligible for the endorsement.
Additionally, you may want to consider completing a specialized training program that focuses on driving doubles/triples vehicles. This training will provide you with the knowledge and skills necessary to safely operate these types of vehicles on public roads.
It is important to note that driving doubles/triples vehicles requires additional skill and training beyond what is required for a standard commercial driver's license. It is recommended that you seek out additional training and practice before operating these types of vehicles on public roads.
Yes, to obtain a CDL Doubles/Triples endorsement in Arizona, you must pass an additional written test or exams.
The first test you must pass is the Arizona CDL Doubles/Triples endorsement knowledge test. This test covers topics such as coupling and uncoupling, inspecting doubles/triples vehicles, and safe driving practices for these types of vehicles.
In addition to the knowledge test, you may also be required to pass a practical skills test that evaluates your ability to safely operate a doubles/triples vehicle. This test will include a pre-trip inspection, a basic control skills test, and an on-road driving test.
It is important to note that the practical skills test may only be administered by an authorized third-party tester or by the Arizona Department of Transportation (ADOT). You must also provide your own doubles/triples vehicle for the skills test.
Overall, obtaining a CDL Doubles/Triples endorsement requires passing both written and practical skills tests, as well as meeting all other eligibility requirements.
The first test you must pass is the Arizona CDL Doubles/Triples endorsement knowledge test. This test covers topics such as coupling and uncoupling, inspecting doubles/triples vehicles, and safe driving practices for these types of vehicles.
In addition to the knowledge test, you may also be required to pass a practical skills test that evaluates your ability to safely operate a doubles/triples vehicle. This test will include a pre-trip inspection, a basic control skills test, and an on-road driving test.
It is important to note that the practical skills test may only be administered by an authorized third-party tester or by the Arizona Department of Transportation (ADOT). You must also provide your own doubles/triples vehicle for the skills test.
Overall, obtaining a CDL Doubles/Triples endorsement requires passing both written and practical skills tests, as well as meeting all other eligibility requirements.
To obtain a CDL Doubles/Triples endorsement in Arizona, you must demonstrate specific skills or maneuvers during the practical skills test. Here are some of the maneuvers you may be asked to perform:
1. Coupling and uncoupling: You will need to demonstrate your ability to properly couple and uncouple the doubles/triples vehicle, including connecting and disconnecting the air lines, electrical lines, and safety chains.
2. Pre-trip inspection: You will need to perform a thorough pre-trip inspection of the doubles/triples vehicle to ensure that it is in safe operating condition. This includes checking the brakes, suspension, tires, lights, mirrors, and other important components.
3. Basic control skills: You will need to demonstrate your ability to control the doubles/triples vehicle in tight spaces and during backing maneuvers. This may include parallel parking, alley docking, and other maneuvers.
4. On-road driving: You will need to demonstrate your ability to safely operate the doubles/triples vehicle on public roads. This includes merging onto highways, changing lanes, making turns, and driving in traffic.
It is important to note that the specific maneuvers you will be asked to perform may vary depending on the testing location and examiner. Be sure to practice all of these skills and maneuvers extensively before taking the test.
1. Coupling and uncoupling: You will need to demonstrate your ability to properly couple and uncouple the doubles/triples vehicle, including connecting and disconnecting the air lines, electrical lines, and safety chains.
2. Pre-trip inspection: You will need to perform a thorough pre-trip inspection of the doubles/triples vehicle to ensure that it is in safe operating condition. This includes checking the brakes, suspension, tires, lights, mirrors, and other important components.
3. Basic control skills: You will need to demonstrate your ability to control the doubles/triples vehicle in tight spaces and during backing maneuvers. This may include parallel parking, alley docking, and other maneuvers.
4. On-road driving: You will need to demonstrate your ability to safely operate the doubles/triples vehicle on public roads. This includes merging onto highways, changing lanes, making turns, and driving in traffic.
It is important to note that the specific maneuvers you will be asked to perform may vary depending on the testing location and examiner. Be sure to practice all of these skills and maneuvers extensively before taking the test.
No, you cannot operate double/triple trailers without a CDL Doubles/Triples endorsement in Arizona. The Federal Motor Carrier Safety Administration (FMCSA) requires drivers to have a CDL Doubles/Triples endorsement to operate vehicles with multiple trailers.
To obtain the endorsement, you must pass both a written test and a practical skills test that evaluates your ability to safely operate a doubles/triples vehicle. You must also meet all other eligibility requirements for obtaining a CDL.
It is important to note that operating a doubles/triples vehicle requires specialized knowledge and skills. These vehicles have unique handling characteristics and require additional safety precautions compared to single trailers. Obtaining a CDL Doubles/Triples endorsement ensures that drivers have the knowledge and skills necessary to operate these vehicles safely on public roads.
To obtain the endorsement, you must pass both a written test and a practical skills test that evaluates your ability to safely operate a doubles/triples vehicle. You must also meet all other eligibility requirements for obtaining a CDL.
It is important to note that operating a doubles/triples vehicle requires specialized knowledge and skills. These vehicles have unique handling characteristics and require additional safety precautions compared to single trailers. Obtaining a CDL Doubles/Triples endorsement ensures that drivers have the knowledge and skills necessary to operate these vehicles safely on public roads.
You can add the CDL Doubles/Triples endorsement to your existing CDL license in Arizona. To add the endorsement, you will need to pass both a written test and a practical skills test that evaluates your ability to safely operate a doubles/triples vehicle.
You can apply for the endorsement at any Arizona MVD office. You will need to bring your current CDL license, proof of identity, and proof of residency. You will also need to pay the required fees for the endorsement.
Once you have passed the tests and paid the fees, the Arizona MVD will add the endorsement to your CDL license. You will be authorized to operate doubles/triples vehicles in accordance with the restrictions and requirements of the endorsement.
It is important to note that adding a CDL Doubles/Triples endorsement may require additional training and practice. These vehicles require specialized knowledge and skills, and it is important to ensure that you are properly trained before operating them on public roads.
You can apply for the endorsement at any Arizona MVD office. You will need to bring your current CDL license, proof of identity, and proof of residency. You will also need to pay the required fees for the endorsement.
Once you have passed the tests and paid the fees, the Arizona MVD will add the endorsement to your CDL license. You will be authorized to operate doubles/triples vehicles in accordance with the restrictions and requirements of the endorsement.
It is important to note that adding a CDL Doubles/Triples endorsement may require additional training and practice. These vehicles require specialized knowledge and skills, and it is important to ensure that you are properly trained before operating them on public roads.
Yes, there are restrictions and limitations for drivers with a CDL Doubles/Triples endorsement in Arizona. These restrictions and limitations are designed to ensure the safety of the driver, other motorists, and the general public.
The following are some of the restrictions and limitations that apply to drivers with a CDL Doubles/Triples endorsement in Arizona:
1. Vehicles: Drivers with a CDL Doubles/Triples endorsement are authorized to operate only vehicles with two or three trailers.
2. Weight: The total weight of the vehicle and all trailers must not exceed the maximum weight limits established by law.
3. Length: The length of the vehicle and all trailers must not exceed the maximum length limits established by law.
4. Routes: Some roads and bridges may have weight or length restrictions that prevent vehicles with two or three trailers from using them.
5. Special Skills: Operating a vehicle with two or three trailers requires special driving skills, such as making wide turns, adjusting to changes in weight distribution, and maintaining proper spacing between trailers.
6. Endorsement Renewal: The CDL Doubles/Triples endorsement must be renewed every five years along with your CDL license.
It is important for drivers with a CDL Doubles/Triples endorsement to understand and follow these restrictions and limitations to ensure their safety and the safety of others on the road.
The following are some of the restrictions and limitations that apply to drivers with a CDL Doubles/Triples endorsement in Arizona:
1. Vehicles: Drivers with a CDL Doubles/Triples endorsement are authorized to operate only vehicles with two or three trailers.
2. Weight: The total weight of the vehicle and all trailers must not exceed the maximum weight limits established by law.
3. Length: The length of the vehicle and all trailers must not exceed the maximum length limits established by law.
4. Routes: Some roads and bridges may have weight or length restrictions that prevent vehicles with two or three trailers from using them.
5. Special Skills: Operating a vehicle with two or three trailers requires special driving skills, such as making wide turns, adjusting to changes in weight distribution, and maintaining proper spacing between trailers.
6. Endorsement Renewal: The CDL Doubles/Triples endorsement must be renewed every five years along with your CDL license.
It is important for drivers with a CDL Doubles/Triples endorsement to understand and follow these restrictions and limitations to ensure their safety and the safety of others on the road.
In Arizona, the maximum weight and length limits for double/triple trailers with a CDL Doubles/Triples endorsement are determined by the federal government and are as follows:
1. Maximum Weight Limit: The maximum weight limit for double/triple trailers is 80,000 pounds, which includes the weight of the tractor, trailers, and cargo.
2. Maximum Length Limit: The maximum length limit for double/triple trailers is 28 feet for each trailer, with a total overall length of 48 feet for the combination of the tractor and two trailers.
It is important to note that these weight and length limits may vary depending on the type of cargo being transported and the specific route being taken. Drivers should always be aware of any weight or length restrictions on the roads they will be traveling to ensure that they are in compliance with the law.
1. Maximum Weight Limit: The maximum weight limit for double/triple trailers is 80,000 pounds, which includes the weight of the tractor, trailers, and cargo.
2. Maximum Length Limit: The maximum length limit for double/triple trailers is 28 feet for each trailer, with a total overall length of 48 feet for the combination of the tractor and two trailers.
It is important to note that these weight and length limits may vary depending on the type of cargo being transported and the specific route being taken. Drivers should always be aware of any weight or length restrictions on the roads they will be traveling to ensure that they are in compliance with the law.
Yes, there are specific safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in Arizona. These regulations are designed to ensure the safety of the driver, other motorists, and the general public. Some of the key safety considerations and regulations are:
1. Proper Spacing: Drivers with a CDL Doubles/Triples endorsement must maintain a safe following distance between their vehicle and other vehicles on the road. The length of the vehicle and all trailers can make it difficult to stop quickly, so it is important to maintain proper spacing.
2. Wide Turns: Drivers must take wider turns when operating a vehicle with two or three trailers to avoid hitting curbs or other vehicles.
3. Weight Distribution: Drivers must ensure that the weight is evenly distributed among all trailers to prevent instability or tipping.
4. Braking Systems: Double/triple trailers require special braking systems that allow all trailers to be controlled by a single system.
5. Special Driving Skills: Operating a vehicle with two or three trailers requires special driving skills, such as making wide turns, adjusting to changes in weight distribution, and maintaining proper spacing between trailers.
6. Inspection: Drivers must inspect their vehicle and all trailers before each trip to ensure that they are in good working condition and that all safety features are functioning properly.
7. Route Planning: Drivers should plan their routes carefully to avoid roads or bridges that have weight or length restrictions that prevent vehicles with two or three trailers from using them.
It is important for drivers with a CDL Doubles/Triples endorsement to understand and follow these safety considerations and regulations to ensure their safety and the safety of others on the road.
1. Proper Spacing: Drivers with a CDL Doubles/Triples endorsement must maintain a safe following distance between their vehicle and other vehicles on the road. The length of the vehicle and all trailers can make it difficult to stop quickly, so it is important to maintain proper spacing.
2. Wide Turns: Drivers must take wider turns when operating a vehicle with two or three trailers to avoid hitting curbs or other vehicles.
3. Weight Distribution: Drivers must ensure that the weight is evenly distributed among all trailers to prevent instability or tipping.
4. Braking Systems: Double/triple trailers require special braking systems that allow all trailers to be controlled by a single system.
5. Special Driving Skills: Operating a vehicle with two or three trailers requires special driving skills, such as making wide turns, adjusting to changes in weight distribution, and maintaining proper spacing between trailers.
6. Inspection: Drivers must inspect their vehicle and all trailers before each trip to ensure that they are in good working condition and that all safety features are functioning properly.
7. Route Planning: Drivers should plan their routes carefully to avoid roads or bridges that have weight or length restrictions that prevent vehicles with two or three trailers from using them.
It is important for drivers with a CDL Doubles/Triples endorsement to understand and follow these safety considerations and regulations to ensure their safety and the safety of others on the road.
