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
8. When driving a 50-foot truck at 50 mph, your minimum following distance should be:
Explanation
At speeds below 40 mph, you should allow at least one second of following distance for every 10 feet of your vehicle. When traveling at higher speeds, follow the same formula, then add one additional second to your following distance.
9. If an Anti-Locking Braking System (ABS) is not working on a truck:
Explanation
An Anti-Lock Braking System (ABS) is in place as an addition to a braking system. It intervenes to prevent brakes from locking up during hard braking. If ABS is not working, the basic braking functions on a vehicle will still remain, so the driver can continue to drive and brake normally.
10. 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.
11. For safety purposes, when should you turn off a retarder?
Explanation
Retarders are mechanisms in some vehicles that help slow a vehicle and reduce the need for braking. However, using a retarder may cause wheels to skid when they have poor traction. Turn off retarders when traveling under wet, snowy, or icy conditions.
12. To prevent a trailer from rolling over while turning, you should:
Explanation
Rollovers happen when an operator turns too fast. Drivers should be sure to slow down before entering turns and curves, especially when pulling a trailer.
13. Before beginning a trip, you should:
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.
14. If air pressure drops to a level between ____, a visual low pressure warning signal should have already activated.
Explanation
A visual low pressure warning signal should activate before air pressure drops to a level between 55 and 75 psi. This signal could be a light, a buzzer, or a wig wag.
Frequently Asked Questions
To obtain a CDL Doubles/Triples endorsement in Alaska, you will need to follow these steps:
1. Obtain a valid Alaska Commercial Driver's License (CDL): Before you can apply for a Doubles/Triples endorsement, you must have a valid CDL.
2. Study the Alaska Commercial Driver License Manual: The manual covers all the topics you need to know for the Doubles/Triples endorsement test. You can download the manual from the Alaska Department of Motor Vehicles (DMV) website or pick up a copy at any DMV office.
3. Schedule an appointment with your local DMV: To take the Doubles/Triples endorsement test, you will need to schedule an appointment with your local DMV. You can do this online or by phone.
4. Take the Doubles/Triples endorsement knowledge test: The test consists of 20 multiple-choice questions, and you must score at least 80% to pass.
5. Pay the endorsement fee: If you pass the knowledge test, you will need to pay a fee to add the Doubles/Triples endorsement to your CDL.
6. Take a skills test: After passing the knowledge test and paying the fee, you will need to take a skills test in a vehicle with doubles or triples trailers.
7. Receive your Doubles/Triples endorsement: If you pass the skills test, your Alaska CDL will be updated with the Doubles/Triples endorsement.
Remember to bring all necessary documents with you when going to your appointment at the DMV. This may include your current driver's license, medical examiner's certificate, social security card or proof of legal presence in the United States, and payment for any fees associated with obtaining your CDL Doubles/Triples endorsement.
1. Obtain a valid Alaska Commercial Driver's License (CDL): Before you can apply for a Doubles/Triples endorsement, you must have a valid CDL.
2. Study the Alaska Commercial Driver License Manual: The manual covers all the topics you need to know for the Doubles/Triples endorsement test. You can download the manual from the Alaska Department of Motor Vehicles (DMV) website or pick up a copy at any DMV office.
3. Schedule an appointment with your local DMV: To take the Doubles/Triples endorsement test, you will need to schedule an appointment with your local DMV. You can do this online or by phone.
4. Take the Doubles/Triples endorsement knowledge test: The test consists of 20 multiple-choice questions, and you must score at least 80% to pass.
5. Pay the endorsement fee: If you pass the knowledge test, you will need to pay a fee to add the Doubles/Triples endorsement to your CDL.
6. Take a skills test: After passing the knowledge test and paying the fee, you will need to take a skills test in a vehicle with doubles or triples trailers.
7. Receive your Doubles/Triples endorsement: If you pass the skills test, your Alaska CDL will be updated with the Doubles/Triples endorsement.
Remember to bring all necessary documents with you when going to your appointment at the DMV. This may include your current driver's license, medical examiner's certificate, social security card or proof of legal presence in the United States, and payment for any fees associated with obtaining your CDL Doubles/Triples endorsement.
To get a CDL Doubles/Triples license in Alaska, you must meet the following requirements:
1. Be at least 21 years old: To operate a commercial vehicle with a Doubles/Triples endorsement, you must be at least 21 years old.
2. Hold a valid Alaska CDL: You must already hold a valid Alaska Commercial Driver's License (CDL) before you can apply for a Doubles/Triples endorsement.
3. Have a clean driving record: You must have a clean driving record with no serious traffic violations or DUI convictions within the past three years.
4. Pass a medical exam: You must pass a medical exam and obtain a valid medical examiner's certificate. This certificate verifies that you are physically fit to operate a commercial vehicle.
5. Pass the CDL Doubles/Triples endorsement knowledge test: You must pass the 20-question knowledge test covering the safe operation of double and triple trailers, coupling and uncoupling procedures, and other related topics.
6. Pass the CDL Doubles/Triples skills test: You must pass the skills test, which includes coupling and uncoupling the trailers, driving through different terrains, and performing other maneuvers.
7. Pay the necessary fees: You will need to pay any fees associated with obtaining your CDL Doubles/Triples endorsement.
It is important to note that obtaining a Doubles/Triples endorsement can be more challenging than obtaining a regular CDL due to the additional skills and knowledge required to safely operate these types of vehicles on public roads.
1. Be at least 21 years old: To operate a commercial vehicle with a Doubles/Triples endorsement, you must be at least 21 years old.
2. Hold a valid Alaska CDL: You must already hold a valid Alaska Commercial Driver's License (CDL) before you can apply for a Doubles/Triples endorsement.
3. Have a clean driving record: You must have a clean driving record with no serious traffic violations or DUI convictions within the past three years.
4. Pass a medical exam: You must pass a medical exam and obtain a valid medical examiner's certificate. This certificate verifies that you are physically fit to operate a commercial vehicle.
5. Pass the CDL Doubles/Triples endorsement knowledge test: You must pass the 20-question knowledge test covering the safe operation of double and triple trailers, coupling and uncoupling procedures, and other related topics.
6. Pass the CDL Doubles/Triples skills test: You must pass the skills test, which includes coupling and uncoupling the trailers, driving through different terrains, and performing other maneuvers.
7. Pay the necessary fees: You will need to pay any fees associated with obtaining your CDL Doubles/Triples endorsement.
It is important to note that obtaining a Doubles/Triples endorsement can be more challenging than obtaining a regular CDL due to the additional skills and knowledge required to safely operate these types of vehicles on public roads.
In Alaska, there are no specific experience or training requirements to obtain a CDL Doubles/Triples endorsement. However, it is highly recommended that you have some experience operating commercial vehicles before attempting to obtain this endorsement.
Additionally, some employers may require you to have a certain amount of experience or training before allowing you to operate double or triple trailers. It is always a good idea to check with potential employers about their specific requirements and preferences.
If you are new to commercial driving, it is recommended that you complete a commercial driver training program to gain the necessary skills and knowledge to operate these types of vehicles. These programs can be found at many vocational schools, community colleges, and truck driving schools.
It is important to note that the Alaska DMV requires all commercial drivers to complete a minimum of 30 hours of behind-the-wheel training before obtaining a CDL. This training must be completed at a DMV-approved training facility and must include at least 10 hours of driving on public roads.
In summary, while there are no specific experience or training requirements for obtaining a CDL Doubles/Triples endorsement in Alaska, it is highly recommended that you have some experience operating commercial vehicles and consider completing a commercial driver training program.
Additionally, some employers may require you to have a certain amount of experience or training before allowing you to operate double or triple trailers. It is always a good idea to check with potential employers about their specific requirements and preferences.
If you are new to commercial driving, it is recommended that you complete a commercial driver training program to gain the necessary skills and knowledge to operate these types of vehicles. These programs can be found at many vocational schools, community colleges, and truck driving schools.
It is important to note that the Alaska DMV requires all commercial drivers to complete a minimum of 30 hours of behind-the-wheel training before obtaining a CDL. This training must be completed at a DMV-approved training facility and must include at least 10 hours of driving on public roads.
In summary, while there are no specific experience or training requirements for obtaining a CDL Doubles/Triples endorsement in Alaska, it is highly recommended that you have some experience operating commercial vehicles and consider completing a commercial driver training program.
Yes, to obtain a CDL Doubles/Triples endorsement in Alaska, you must pass an additional written test, in addition to the general knowledge test required for a regular CDL. The Doubles/Triples endorsement knowledge test is a 20-question multiple-choice test that covers the safe operation of double and triple trailers, coupling and uncoupling procedures, and other related topics.
The questions on the test will cover safety regulations, legal weight limits, and other important information that is specific to operating double or triple trailers. You will need to correctly answer at least 16 questions (80%) to pass the test.
In addition to the written test, you must also pass a skills test that includes coupling and uncoupling the trailers, driving through different terrains, and performing other maneuvers. The skills test will demonstrate your ability to safely operate double or triple trailers on public roads.
Overall, obtaining a CDL Doubles/Triples endorsement requires passing both a written test and a skills test in addition to meeting other requirements such as having a clean driving record and passing a medical exam.
The questions on the test will cover safety regulations, legal weight limits, and other important information that is specific to operating double or triple trailers. You will need to correctly answer at least 16 questions (80%) to pass the test.
In addition to the written test, you must also pass a skills test that includes coupling and uncoupling the trailers, driving through different terrains, and performing other maneuvers. The skills test will demonstrate your ability to safely operate double or triple trailers on public roads.
Overall, obtaining a CDL Doubles/Triples endorsement requires passing both a written test and a skills test in addition to meeting other requirements such as having a clean driving record and passing a medical exam.
To obtain a CDL Doubles/Triples endorsement in Alaska, you must pass a skills test that includes several specific maneuvers. The test will assess your ability to safely operate double or triple trailers on public roads. Here are the specific skills or maneuvers you need to demonstrate during the test:
1. Coupling and uncoupling the trailers: You will need to properly connect and disconnect the double or triple trailers, ensuring that all connections are secure and all safety procedures are followed.
2. Pre-trip inspection: You will need to perform a pre-trip inspection of the vehicle, ensuring that all parts and equipment are in working order.
3. Shifting gears: You will need to demonstrate your ability to shift gears smoothly and efficiently while operating the double or triple trailers.
4. Driving in a straight line: You will need to drive the vehicle in a straight line while maintaining proper lane position and speed.
5. Turning: You will need to safely navigate turns, making sure that the trailer stays within the proper lane and does not swing out into other lanes or off the road.
6. Backing up: You will need to back up the vehicle safely, using proper backing techniques such as checking mirrors and using a spotter if necessary.
7. Coupling and uncoupling on an incline: You may be required to demonstrate your ability to connect and disconnect the trailers on an incline, such as a hill or ramp.
Overall, the skills test is designed to assess your ability to safely operate double or triple trailers in real-world driving situations. It is important to practice these maneuvers and techniques before taking the test, as failing any portion of the test will result in having to retake it at a later time.
1. Coupling and uncoupling the trailers: You will need to properly connect and disconnect the double or triple trailers, ensuring that all connections are secure and all safety procedures are followed.
2. Pre-trip inspection: You will need to perform a pre-trip inspection of the vehicle, ensuring that all parts and equipment are in working order.
3. Shifting gears: You will need to demonstrate your ability to shift gears smoothly and efficiently while operating the double or triple trailers.
4. Driving in a straight line: You will need to drive the vehicle in a straight line while maintaining proper lane position and speed.
5. Turning: You will need to safely navigate turns, making sure that the trailer stays within the proper lane and does not swing out into other lanes or off the road.
6. Backing up: You will need to back up the vehicle safely, using proper backing techniques such as checking mirrors and using a spotter if necessary.
7. Coupling and uncoupling on an incline: You may be required to demonstrate your ability to connect and disconnect the trailers on an incline, such as a hill or ramp.
Overall, the skills test is designed to assess your ability to safely operate double or triple trailers in real-world driving situations. It is important to practice these maneuvers and techniques before taking the test, as failing any portion of the test will result in having to retake it at a later time.
No, you cannot operate double/triple trailers without a CDL Doubles/Triples endorsement. In Alaska, you must have a CDL with the Doubles/Triples endorsement to legally operate a commercial vehicle that has double or triple trailers.
Operating a commercial vehicle without the proper endorsement could result in fines, penalties, and even the suspension or revocation of your CDL. Additionally, driving a vehicle that you are not properly trained or licensed to operate can put you and others on the road at risk.
It is important to note that the requirements for obtaining a CDL Doubles/Triples endorsement include passing a written test and a skills test, as well as meeting other requirements such as having a clean driving record and passing a medical exam. It is important to ensure that you have the proper training and qualifications before operating double or triple trailers on public roads.
Operating a commercial vehicle without the proper endorsement could result in fines, penalties, and even the suspension or revocation of your CDL. Additionally, driving a vehicle that you are not properly trained or licensed to operate can put you and others on the road at risk.
It is important to note that the requirements for obtaining a CDL Doubles/Triples endorsement include passing a written test and a skills test, as well as meeting other requirements such as having a clean driving record and passing a medical exam. It is important to ensure that you have the proper training and qualifications before operating double or triple trailers on public roads.
Yes, you can add the CDL Doubles/Triples endorsement to your existing CDL license in Alaska. To add the endorsement, you will need to pass a knowledge test and a skills test that are specific to operating double or triple trailers.
To apply for the endorsement, you will need to visit an Alaska DMV office and provide proof of your identity, residency, and citizenship or lawful presence in the United States. You will also need to self-certify your type of driving and provide a current medical certificate if required.
Once you have passed the required tests and met all other requirements, the DMV will add the Doubles/Triples endorsement to your existing CDL license. There may be an additional fee for adding the endorsement.
It is important to note that you must have a valid CDL before you can add any endorsements. If your CDL has expired, you will need to renew it before adding any endorsements.
To apply for the endorsement, you will need to visit an Alaska DMV office and provide proof of your identity, residency, and citizenship or lawful presence in the United States. You will also need to self-certify your type of driving and provide a current medical certificate if required.
Once you have passed the required tests and met all other requirements, the DMV will add the Doubles/Triples endorsement to your existing CDL license. There may be an additional fee for adding the endorsement.
It is important to note that you must have a valid CDL before you can add any endorsements. If your CDL has expired, you will need to renew it before adding any endorsements.
Yes, there are restrictions and limitations for drivers with a CDL Doubles/Triples endorsement in Alaska. Here are some of the key restrictions:
1. Combination length: The maximum length for a combination of vehicles that includes double or triple trailers is 68 feet.
2. Weight limits: The maximum weight for a combination of vehicles that includes double or triple trailers is 80,000 pounds.
3. Required equipment: Vehicles with double or triple trailers are required to have certain equipment, such as underride guards and conspicuity markings, to increase visibility and safety.
4. Special driving considerations: Drivers with a Doubles/Triples endorsement must be especially cautious when turning, changing lanes, and braking due to the added length and weight of the vehicle.
It is important for drivers with a CDL Doubles/Triples endorsement to understand these restrictions and limitations and to operate their vehicles safely and responsibly at all times. Violating any of these restrictions could result in fines, penalties, or even the suspension or revocation of your CDL.
1. Combination length: The maximum length for a combination of vehicles that includes double or triple trailers is 68 feet.
2. Weight limits: The maximum weight for a combination of vehicles that includes double or triple trailers is 80,000 pounds.
3. Required equipment: Vehicles with double or triple trailers are required to have certain equipment, such as underride guards and conspicuity markings, to increase visibility and safety.
4. Special driving considerations: Drivers with a Doubles/Triples endorsement must be especially cautious when turning, changing lanes, and braking due to the added length and weight of the vehicle.
It is important for drivers with a CDL Doubles/Triples endorsement to understand these restrictions and limitations and to operate their vehicles safely and responsibly at all times. Violating any of these restrictions could result in fines, penalties, or even the suspension or revocation of your CDL.
In Alaska, the maximum weight and length limits for double/triple trailers with a CDL Doubles/Triples endorsement are as follows:
1. Weight Limits: The maximum gross vehicle weight (GVW) for double/triple trailers is 80,000 pounds.
2. Length Limits: The maximum length of double/triple trailers is 28 feet each, which means the total length of the combination of vehicles must not exceed 68 feet.
It is important to note that these limits may vary depending on the specific type of vehicle and the state or region in which you are operating. It is the responsibility of the driver to know and comply with all applicable weight and length limits. Any violation of these limits can result in penalties or fines, and can even lead to suspension or revocation of your CDL.
1. Weight Limits: The maximum gross vehicle weight (GVW) for double/triple trailers is 80,000 pounds.
2. Length Limits: The maximum length of double/triple trailers is 28 feet each, which means the total length of the combination of vehicles must not exceed 68 feet.
It is important to note that these limits may vary depending on the specific type of vehicle and the state or region in which you are operating. It is the responsibility of the driver to know and comply with all applicable weight and length limits. Any violation of these limits can result in penalties or fines, and can even lead to suspension or revocation of your CDL.
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 key safety considerations and regulations:
1. Vehicle Inspection: Before operating a double/triple trailer, it is important to conduct a thorough pre-trip inspection to ensure that all equipment is in good working condition.
2. Special Skills: Driving a double/triple trailer requires a higher level of skill and experience than driving a standard commercial vehicle. Drivers with a CDL Doubles/Triples endorsement are required to demonstrate their ability to safely operate these vehicles during their CDL skills test.
3. Special Equipment: Double/triple trailers are required to have certain safety equipment, such as underride guards, conspicuity markings, and reflective tape, to increase visibility and safety.
4. Safe Driving Practices: Drivers with a CDL Doubles/Triples endorsement must practice safe driving practices such as maintaining a safe following distance, reducing speed during turns or lane changes, and being aware of the added length and weight of the vehicle.
5. Weight Distribution: Proper weight distribution is crucial when operating double/triple trailers. Overloading or improperly distributing weight can lead to loss of control or other safety issues.
It is important for drivers with a CDL Doubles/Triples endorsement to understand and comply with these safety considerations and regulations in order to operate their vehicles safely and responsibly. Any violation of these regulations can result in penalties or fines, and can even lead to suspension or revocation of your CDL.
1. Vehicle Inspection: Before operating a double/triple trailer, it is important to conduct a thorough pre-trip inspection to ensure that all equipment is in good working condition.
2. Special Skills: Driving a double/triple trailer requires a higher level of skill and experience than driving a standard commercial vehicle. Drivers with a CDL Doubles/Triples endorsement are required to demonstrate their ability to safely operate these vehicles during their CDL skills test.
3. Special Equipment: Double/triple trailers are required to have certain safety equipment, such as underride guards, conspicuity markings, and reflective tape, to increase visibility and safety.
4. Safe Driving Practices: Drivers with a CDL Doubles/Triples endorsement must practice safe driving practices such as maintaining a safe following distance, reducing speed during turns or lane changes, and being aware of the added length and weight of the vehicle.
5. Weight Distribution: Proper weight distribution is crucial when operating double/triple trailers. Overloading or improperly distributing weight can lead to loss of control or other safety issues.
It is important for drivers with a CDL Doubles/Triples endorsement to understand and comply with these safety considerations and regulations in order to operate their vehicles safely and responsibly. Any violation of these regulations can result in penalties or fines, and can even lead to suspension or revocation of your CDL.
