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 Alaska 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. An air compressor governor controls:
Explanation
In an air brake system, the air compressor governor controls when the air compressor pumps air into the air storage tanks.
2. The two indicators that determine when you should upshift are:
Explanation
There are two indicators that determine when you need to shift into a higher gear. One indicator is the engine speed (rpm). You should read your vehicle's manual to learn its rpm range and shift up when you reach the top of that range. The other indicator is road speed (mph). You should learn which speeds each gear can accommodate, then keep an eye on the speedometer and shift up as needed.
3. When should mirrors be adjusted?
Explanation
The adjustment of your mirrors should be checked prior to the start of all trips. Adjust your mirrors as needed.
4. Mirrors should be used:
Explanation
When driving, you should frequently check the mirrors on both sides of your vehicle.
5. If you are backing and the trailer begins to drift off-course, the driver should:
Explanation
If your trailer begins to drift while you are backing, you should correct the drift immediately by turning the top of the steering wheel in the direction of the drift.
6. During a walk-around inspection, ensure the release arm is properly seated and the safety latch or lock is:
Explanation
When inspecting the fifth wheel before a trip, you should ensure that the release arm is properly seated and the safety latch or lock is engaged. All components should be present and in proper working condition.
7. How can a driver maintain alertness while driving?
Explanation
Eating heavy foods before driving or keeping the temperature in a cab too high can cause a driver to become drowsy while behind the wheel. Exercising and maintaining a healthy diet will help a driver to stay alert while driving.
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Frequently Asked Questions
To obtain a CDL Doubles/Triples endorsement in Alaska, you need to follow these steps:
1. Meet the eligibility requirements: You must be at least 21 years old, hold a valid Alaska CDL, and have a clean driving record. You may also need to pass a medical exam and provide proof of citizenship or legal presence in the United States.
2. Study for the Doubles/Triples endorsement exam: You can prepare for the exam by reviewing the Alaska Commercial Driver License Manual and studying the information related to doubles/triples in Chapter 6.
3. Schedule and pass the written exam: You can schedule an appointment to take the written exam at an Alaska DMV office. The exam consists of 20 multiple-choice questions, and you must score at least 80% to pass.
4. Pay the necessary fees: There is a fee for taking the written exam and obtaining the Doubles/Triples endorsement.
5. Practice driving doubles/triples: Before you can use your CDL with a Doubles/Triples endorsement, you must also demonstrate proficiency in operating these types of vehicles. You will need to practice driving with a qualified trainer or employer and pass a skills test.
6. Obtain your CDL with Doubles/Triples endorsement: Once you have passed both the written and skills exams and paid all necessary fees, you will receive your Alaska CDL with Doubles/Triples endorsement added to it.
It is important to note that obtaining a CDL Doubles/Triples endorsement requires additional training and experience beyond what is required for a standard CDL. It is recommended that you seek out a reputable training program or employer who can provide this training before attempting to obtain this endorsement.
1. Meet the eligibility requirements: You must be at least 21 years old, hold a valid Alaska CDL, and have a clean driving record. You may also need to pass a medical exam and provide proof of citizenship or legal presence in the United States.
2. Study for the Doubles/Triples endorsement exam: You can prepare for the exam by reviewing the Alaska Commercial Driver License Manual and studying the information related to doubles/triples in Chapter 6.
3. Schedule and pass the written exam: You can schedule an appointment to take the written exam at an Alaska DMV office. The exam consists of 20 multiple-choice questions, and you must score at least 80% to pass.
4. Pay the necessary fees: There is a fee for taking the written exam and obtaining the Doubles/Triples endorsement.
5. Practice driving doubles/triples: Before you can use your CDL with a Doubles/Triples endorsement, you must also demonstrate proficiency in operating these types of vehicles. You will need to practice driving with a qualified trainer or employer and pass a skills test.
6. Obtain your CDL with Doubles/Triples endorsement: Once you have passed both the written and skills exams and paid all necessary fees, you will receive your Alaska CDL with Doubles/Triples endorsement added to it.
It is important to note that obtaining a CDL Doubles/Triples endorsement requires additional training and experience beyond what is required for a standard CDL. It is recommended that you seek out a reputable training program or employer who can provide this training before attempting to obtain this endorsement.
To get a CDL Doubles/Triples license in Alaska, you must meet the following requirements:
1. Be at least 21 years old: You must be at least 21 years old to operate a commercial vehicle carrying multiple trailers across state lines.
2. Hold a valid Alaska CDL: You must have a valid CDL for the class of commercial vehicle you wish to drive.
3. Have a clean driving record: You should not have any serious traffic violations or convictions on your driving record.
4. Pass a medical exam: You must pass a medical exam conducted by a qualified medical examiner to ensure you are physically fit to operate a commercial vehicle.
5. Pass the Doubles/Triples written exam: You must pass a written exam that covers the knowledge and skills required to safely operate a commercial vehicle with multiple trailers. The exam includes questions on coupling and uncoupling, inspecting doubles/triples, and safe driving practices.
6. Complete the necessary training: To operate a commercial vehicle with multiple trailers, you must complete additional training in coupling and uncoupling, inspecting doubles/triples, and safe driving practices.
7. Pass the Doubles/Triples skills test: You must pass a skills test that demonstrates your ability to safely operate a commercial vehicle with multiple trailers. The test includes coupling and uncoupling, backing, turning, and maneuvering through traffic.
8. Pay the necessary fees: There is a fee for taking the written exam and obtaining the Doubles/Triples endorsement on your CDL.
It is important to note that obtaining a CDL Doubles/Triples license requires additional training and experience beyond what is required for a standard CDL. It is recommended that you seek out a reputable training program or employer who can provide this training before attempting to obtain this endorsement.
1. Be at least 21 years old: You must be at least 21 years old to operate a commercial vehicle carrying multiple trailers across state lines.
2. Hold a valid Alaska CDL: You must have a valid CDL for the class of commercial vehicle you wish to drive.
3. Have a clean driving record: You should not have any serious traffic violations or convictions on your driving record.
4. Pass a medical exam: You must pass a medical exam conducted by a qualified medical examiner to ensure you are physically fit to operate a commercial vehicle.
5. Pass the Doubles/Triples written exam: You must pass a written exam that covers the knowledge and skills required to safely operate a commercial vehicle with multiple trailers. The exam includes questions on coupling and uncoupling, inspecting doubles/triples, and safe driving practices.
6. Complete the necessary training: To operate a commercial vehicle with multiple trailers, you must complete additional training in coupling and uncoupling, inspecting doubles/triples, and safe driving practices.
7. Pass the Doubles/Triples skills test: You must pass a skills test that demonstrates your ability to safely operate a commercial vehicle with multiple trailers. The test includes coupling and uncoupling, backing, turning, and maneuvering through traffic.
8. Pay the necessary fees: There is a fee for taking the written exam and obtaining the Doubles/Triples endorsement on your CDL.
It is important to note that obtaining a CDL Doubles/Triples license requires additional training and experience beyond what is required for a standard CDL. It is recommended that you seek out a reputable training program or employer who can provide this training before attempting to obtain this endorsement.
Yes, you will need specific experience and training to obtain a CDL Doubles/Triples endorsement. To obtain the endorsement, you must complete additional training in coupling and uncoupling, inspecting doubles/triples, and safe driving practices.
Before attempting to obtain a CDL Doubles/Triples endorsement, it is recommended that you have some experience driving a commercial vehicle with a single trailer. Some employers may require drivers to have a minimum of two years of experience driving with a standard CDL before allowing them to operate vehicles with multiple trailers.
In addition to completing the necessary training, you must also pass a written exam and a skills test that demonstrates your ability to safely operate a commercial vehicle with multiple trailers.
It is important to note that obtaining a CDL Doubles/Triples endorsement requires additional training and experience beyond what is required for a standard CDL. It is recommended that you seek out a reputable training program or employer who can provide this training before attempting to obtain this endorsement.
Before attempting to obtain a CDL Doubles/Triples endorsement, it is recommended that you have some experience driving a commercial vehicle with a single trailer. Some employers may require drivers to have a minimum of two years of experience driving with a standard CDL before allowing them to operate vehicles with multiple trailers.
In addition to completing the necessary training, you must also pass a written exam and a skills test that demonstrates your ability to safely operate a commercial vehicle with multiple trailers.
It is important to note that obtaining a CDL Doubles/Triples endorsement requires additional training and experience beyond what is required for a standard CDL. It is recommended that you seek out a reputable training program or employer who can provide this training before attempting to obtain this endorsement.
Yes, to obtain a CDL Doubles/Triples endorsement, you must pass an additional written exam in addition to the standard CDL written exam. The Doubles/Triples written exam covers the knowledge and skills required to safely operate a commercial vehicle with multiple trailers. This exam includes questions on coupling and uncoupling, inspecting doubles/triples, and safe driving practices.
The exam is typically administered at the same time as the standard CDL written exam. You must pass both exams to obtain a CDL Doubles/Triples endorsement.
It is important to study and prepare for the Doubles/Triples written exam, as it covers specialized information that may not be covered in the standard CDL exam. You can find study materials and practice exams online or through a reputable training program.
In addition to the written exam, you must also pass a skills test that demonstrates your ability to safely operate a commercial vehicle with multiple trailers. This test includes coupling and uncoupling, backing, turning, and maneuvering through traffic.
The exam is typically administered at the same time as the standard CDL written exam. You must pass both exams to obtain a CDL Doubles/Triples endorsement.
It is important to study and prepare for the Doubles/Triples written exam, as it covers specialized information that may not be covered in the standard CDL exam. You can find study materials and practice exams online or through a reputable training program.
In addition to the written exam, you must also pass a skills test that demonstrates your ability to safely operate a commercial vehicle with multiple trailers. This test includes coupling and uncoupling, backing, turning, and maneuvering through traffic.
To obtain a CDL Doubles/Triples endorsement, you must pass a skills test that demonstrates your ability to safely operate a commercial vehicle with multiple trailers. The skills test includes several specific maneuvers that you must perform to the satisfaction of the examiner. Here are the specific skills or maneuvers that you will need to demonstrate during the CDL Doubles/Triples endorsement test:
1. Pre-trip inspection: You will need to perform a thorough pre-trip inspection of your vehicle, checking for any defects or mechanical issues that could affect safety.
2. Coupling and uncoupling: You will need to demonstrate your ability to safely couple and uncouple the trailers, including properly connecting and disconnecting the air lines, electrical lines, and safety chains.
3. Straight-line backing: You will need to back the vehicle in a straight line for a distance of at least 100 feet.
4. Off-set backing: You will need to back the vehicle into a space that is offset to one side, using only mirrors to guide you.
5. Parallel parking: You will need to park the vehicle parallel to a curb or other obstacle, with the rear of the vehicle within 18 inches of the curb or obstacle.
6. Alley docking: You will need to back the vehicle into an alley-like space between two barriers, using only mirrors to guide you.
7. Driving on public roads: You will need to demonstrate your ability to safely maneuver the vehicle through traffic on public roads, including turning, changing lanes, and merging.
During each maneuver, you will be graded on your ability to control the vehicle safely and effectively while following proper procedures. It is important to practice these maneuvers extensively before taking the CDL Doubles/Triples endorsement skills test.
1. Pre-trip inspection: You will need to perform a thorough pre-trip inspection of your vehicle, checking for any defects or mechanical issues that could affect safety.
2. Coupling and uncoupling: You will need to demonstrate your ability to safely couple and uncouple the trailers, including properly connecting and disconnecting the air lines, electrical lines, and safety chains.
3. Straight-line backing: You will need to back the vehicle in a straight line for a distance of at least 100 feet.
4. Off-set backing: You will need to back the vehicle into a space that is offset to one side, using only mirrors to guide you.
5. Parallel parking: You will need to park the vehicle parallel to a curb or other obstacle, with the rear of the vehicle within 18 inches of the curb or obstacle.
6. Alley docking: You will need to back the vehicle into an alley-like space between two barriers, using only mirrors to guide you.
7. Driving on public roads: You will need to demonstrate your ability to safely maneuver the vehicle through traffic on public roads, including turning, changing lanes, and merging.
During each maneuver, you will be graded on your ability to control the vehicle safely and effectively while following proper procedures. It is important to practice these maneuvers extensively before taking the CDL Doubles/Triples endorsement skills test.
No, you cannot operate double/triple trailers without a CDL Doubles/Triples endorsement. In Alaska, a CDL Doubles/Triples endorsement is required to operate a commercial vehicle with multiple trailers. If you are caught operating a commercial vehicle with multiple trailers without the proper endorsement, you may be subject to fines and penalties.
It is important to have the proper training and endorsement before operating a commercial vehicle with multiple trailers. The Doubles/Triples endorsement covers specific knowledge and skills required to safely operate these types of vehicles. By obtaining the endorsement, you will have the necessary training and knowledge to safely operate a commercial vehicle with multiple trailers.
To obtain a CDL Doubles/Triples endorsement in Alaska, you must pass an additional written exam and skills test that demonstrate your ability to safely operate a commercial vehicle with multiple trailers. You must also have a valid Alaska CDL and meet other age and medical requirements.
It is important to have the proper training and endorsement before operating a commercial vehicle with multiple trailers. The Doubles/Triples endorsement covers specific knowledge and skills required to safely operate these types of vehicles. By obtaining the endorsement, you will have the necessary training and knowledge to safely operate a commercial vehicle with multiple trailers.
To obtain a CDL Doubles/Triples endorsement in Alaska, you must pass an additional written exam and skills test that demonstrate your ability to safely operate a commercial vehicle with multiple trailers. You must also have a valid Alaska CDL and meet other age and medical requirements.
You can add the CDL Doubles/Triples endorsement to your existing Alaska CDL license without having to apply for a new license. To add the endorsement, you will need to pass the required knowledge and skills tests for the Doubles/Triples endorsement.
Here are the steps to add the CDL Doubles/Triples endorsement to your existing Alaska CDL license:
1. Study for the doubles/triples endorsement exam: You will need to study the Alaska Commercial Driver License Manual and any other relevant study materials to prepare for the doubles/triples endorsement exam.
2. Schedule and pass the doubles/triples endorsement exam: You will need to pass an additional written exam that covers topics specific to operating commercial vehicles with multiple trailers. Once you pass the exam, you will be issued a new commercial learner's permit that includes the doubles/triples endorsement.
3. Practice driving with double/triple trailers: Once you have passed the written exam, you can start practicing driving with double/triple trailers under the supervision of a qualified trainer or instructor.
4. Pass the doubles/triples skills test: You will need to pass a skills test that demonstrates your ability to safely operate a commercial vehicle with multiple trailers. The skills test will include specific maneuvers, such as straight-line backing, off-set backing, and alley docking.
Once you have passed both the written and skills tests, you can go to any Alaska DMV office and pay the required fee to add the doubles/triples endorsement to your existing CDL license.
Here are the steps to add the CDL Doubles/Triples endorsement to your existing Alaska CDL license:
1. Study for the doubles/triples endorsement exam: You will need to study the Alaska Commercial Driver License Manual and any other relevant study materials to prepare for the doubles/triples endorsement exam.
2. Schedule and pass the doubles/triples endorsement exam: You will need to pass an additional written exam that covers topics specific to operating commercial vehicles with multiple trailers. Once you pass the exam, you will be issued a new commercial learner's permit that includes the doubles/triples endorsement.
3. Practice driving with double/triple trailers: Once you have passed the written exam, you can start practicing driving with double/triple trailers under the supervision of a qualified trainer or instructor.
4. Pass the doubles/triples skills test: You will need to pass a skills test that demonstrates your ability to safely operate a commercial vehicle with multiple trailers. The skills test will include specific maneuvers, such as straight-line backing, off-set backing, and alley docking.
Once you have passed both the written and skills tests, you can go to any Alaska DMV office and pay the required fee to add the doubles/triples endorsement to your existing CDL license.
Yes, there are restrictions and limitations for drivers with a CDL Doubles/Triples endorsement in Alaska. Here are some of the important restrictions and limitations you should be aware of:
1. You are only authorized to operate commercial vehicles with double/triple trailers if you have obtained the Doubles/Triples endorsement.
2. If you are under 21 years of age, you are not allowed to operate commercial vehicles with double/triple trailers.
3. You may only operate double/triple trailers that are connected in a way that complies with Alaska's laws and regulations.
4. When driving a commercial vehicle with double/triple trailers, you must leave enough space between your vehicle and other vehicles, especially when changing lanes or turning.
5. You must ensure that each trailer is properly connected and secured before driving.
6. You must comply with all federal and state laws and regulations related to operating commercial vehicles with double/triple trailers.
7. If you violate any of these restrictions or limitations, you may be subject to fines, penalties, or even suspension or revocation of your CDL license.
It is important to understand and comply with all the restrictions and limitations that apply to drivers with a CDL Doubles/Triples endorsement in order to maintain your CDL license and avoid serious consequences.
1. You are only authorized to operate commercial vehicles with double/triple trailers if you have obtained the Doubles/Triples endorsement.
2. If you are under 21 years of age, you are not allowed to operate commercial vehicles with double/triple trailers.
3. You may only operate double/triple trailers that are connected in a way that complies with Alaska's laws and regulations.
4. When driving a commercial vehicle with double/triple trailers, you must leave enough space between your vehicle and other vehicles, especially when changing lanes or turning.
5. You must ensure that each trailer is properly connected and secured before driving.
6. You must comply with all federal and state laws and regulations related to operating commercial vehicles with double/triple trailers.
7. If you violate any of these restrictions or limitations, you may be subject to fines, penalties, or even suspension or revocation of your CDL license.
It is important to understand and comply with all the restrictions and limitations that apply to drivers with a CDL Doubles/Triples endorsement in order to maintain your CDL license and avoid serious consequences.
In Alaska, the maximum weight and length limits for double/triple trailers with a CDL Doubles/Triples endorsement are determined by federal and state laws. Here are the maximum weight and length limits for double/triple trailers:
1. Maximum weight limit: The maximum gross vehicle weight (GVW) limit for a double/triple combination is 80,000 pounds, subject to certain exceptions and permits.
2. Maximum length limit: The maximum overall length of a double/triple combination is 100 feet, subject to certain exceptions and permits.
It is important to note that these weight and length limits may vary depending on the specific type of commercial vehicle, the type of cargo being transported, and other factors. Additionally, there may be additional restrictions or permit requirements for operating double/triple trailers on certain roads or in certain areas.
As a driver with a CDL Doubles/Triples endorsement, it is your responsibility to understand and comply with all applicable weight and length limits, as well as any additional regulations or requirements that apply to your specific situation.
1. Maximum weight limit: The maximum gross vehicle weight (GVW) limit for a double/triple combination is 80,000 pounds, subject to certain exceptions and permits.
2. Maximum length limit: The maximum overall length of a double/triple combination is 100 feet, subject to certain exceptions and permits.
It is important to note that these weight and length limits may vary depending on the specific type of commercial vehicle, the type of cargo being transported, and other factors. Additionally, there may be additional restrictions or permit requirements for operating double/triple trailers on certain roads or in certain areas.
As a driver with a CDL Doubles/Triples endorsement, it is your responsibility to understand and comply with all applicable weight and length limits, as well as any additional regulations or requirements that apply to your specific situation.
Yes, there are specific safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in Alaska. Here are some of the important safety considerations and regulations you should be aware of:
1. Proper loading and balancing: When driving a commercial vehicle with double/triple trailers, it's essential to ensure that the cargo is loaded and balanced properly to prevent accidents and rollovers. Properly loaded and secured cargo will also help you maintain control of your vehicle in difficult driving conditions.
2. Adequate stopping distance: A commercial vehicle with double/triple trailers will require a longer stopping distance than a single trailer vehicle. Therefore, it's important to maintain a safe following distance from other vehicles to reduce the risk of rear-end collisions.
3. Wide turns: Double/triple trailers require wider turns than single trailer vehicles, so it's important to be aware of your surroundings and use caution when turning.
4. Height restrictions: Double/triple trailers may exceed the height restrictions imposed by certain bridges or overpasses, so it's essential to plan your route carefully and avoid areas that may pose a risk.
5. Speed limits: Commercial vehicles with double/triple trailers are subject to specific speed limits that may be lower than those for other vehicles on certain roads or highways.
6. Inspections: Commercial vehicles with double/triple trailers are subject to regular inspections to ensure they are in compliance with federal and state regulations.
7. Special endorsements: Drivers who operate commercial vehicles with double/triple trailers must obtain the appropriate endorsements on their CDL license, which requires passing additional knowledge and skills tests.
As a driver with a CDL Doubles/Triples endorsement, it is your responsibility to understand and comply with all applicable safety regulations to ensure safe operation of your vehicle and prevent accidents or incidents on the road.
1. Proper loading and balancing: When driving a commercial vehicle with double/triple trailers, it's essential to ensure that the cargo is loaded and balanced properly to prevent accidents and rollovers. Properly loaded and secured cargo will also help you maintain control of your vehicle in difficult driving conditions.
2. Adequate stopping distance: A commercial vehicle with double/triple trailers will require a longer stopping distance than a single trailer vehicle. Therefore, it's important to maintain a safe following distance from other vehicles to reduce the risk of rear-end collisions.
3. Wide turns: Double/triple trailers require wider turns than single trailer vehicles, so it's important to be aware of your surroundings and use caution when turning.
4. Height restrictions: Double/triple trailers may exceed the height restrictions imposed by certain bridges or overpasses, so it's essential to plan your route carefully and avoid areas that may pose a risk.
5. Speed limits: Commercial vehicles with double/triple trailers are subject to specific speed limits that may be lower than those for other vehicles on certain roads or highways.
6. Inspections: Commercial vehicles with double/triple trailers are subject to regular inspections to ensure they are in compliance with federal and state regulations.
7. Special endorsements: Drivers who operate commercial vehicles with double/triple trailers must obtain the appropriate endorsements on their CDL license, which requires passing additional knowledge and skills tests.
As a driver with a CDL Doubles/Triples endorsement, it is your responsibility to understand and comply with all applicable safety regulations to ensure safe operation of your vehicle and prevent accidents or incidents on the road.
