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 or four possible answer choices. Test questions come from the Oregon Commercial Driver 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
15. When stopping:
Explanation
Press the brake pedal down smoothly and gradually every time you slow or stop. The amount of brake pressure you need to apply depends on the speed of your vehicle and how quickly you need to stop.
16. When driving a vehicle equipped with an Anti-Lock Braking System (ABS), you should:
Explanation
When driving a tractor-trailer combination that is equipped with an Anti-Lock Braking System (ABS), you should brake in the same manner that you would if the vehicle was not equipped with ABS.
17. When driving in the winter, which of the following should receive extra attention in a pre-trip inspection?
Explanation
When driving during the winter, it is especially important to make sure the coolant and antifreeze are at safe levels.
18. What is a tractor protection valve?
Explanation
A tractor protection valve keeps air in a tractor or truck air brake system should the trailer break away or develop a bad leak. The valve will close automatically if the pressure drops to an unsafe level.
19. What should you do if your vehicle gets stuck on railroad tracks?
Explanation
If your CMV gets stuck on railroad tracks, you should immediately leave the vehicle and get away from the tracks. Check the signposts or signal housing at the crossing for emergency contact information and call 911, or another appropriate emergency number.
20. An air supply control in its "emergency" position will:
Explanation
Tractor protection controls in older vehicles may be operated by levers instead of knobs. If an air supply control is set in its "emergency" position, the air supply will be stopped and the trailer emergency brakes will be applied.
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Frequently Asked Questions
To obtain a CDL Doubles/Triples endorsement in Oregon, you will need to follow these steps:
1. Obtain a valid Oregon Commercial Driver's License (CDL) by passing the required knowledge and skills tests.
2. Complete the CDL Doubles/Triples endorsement application form, which can be found on the Oregon Department of Transportation (ODOT) website.
3. Schedule an appointment with a CDL testing center in Oregon to take the Doubles/Triples endorsement knowledge test. You will need to bring your CDL, endorsement application form, and any other required documents or fees.
4. Study for the Doubles/Triples endorsement knowledge test using the Oregon CDL Manual and any other resources provided by ODOT.
5. Pass the Doubles/Triples endorsement knowledge test with a score of at least 80%.
6. Schedule an appointment with a CDL testing center in Oregon to take the Doubles/Triples endorsement skills test. You will need to bring your CDL, endorsement application form, and any other required documents or fees.
7. Practice driving with a commercial vehicle that has doubles/triples trailers attached to it so that you are prepared for the skills test.
8. Pass the Doubles/Triples endorsement skills test by demonstrating that you can safely operate a commercial vehicle with doubles/triples trailers attached to it.
9. Pay any required fees and wait for your new CDL with Doubles/Triples endorsement to arrive in the mail.
It is important to note that obtaining a CDL Doubles/Triples endorsement may require additional training and experience beyond what is required for a standard CDL. Be sure to consult with ODOT or a qualified driving instructor for more information on how to prepare for this endorsement.
1. Obtain a valid Oregon Commercial Driver's License (CDL) by passing the required knowledge and skills tests.
2. Complete the CDL Doubles/Triples endorsement application form, which can be found on the Oregon Department of Transportation (ODOT) website.
3. Schedule an appointment with a CDL testing center in Oregon to take the Doubles/Triples endorsement knowledge test. You will need to bring your CDL, endorsement application form, and any other required documents or fees.
4. Study for the Doubles/Triples endorsement knowledge test using the Oregon CDL Manual and any other resources provided by ODOT.
5. Pass the Doubles/Triples endorsement knowledge test with a score of at least 80%.
6. Schedule an appointment with a CDL testing center in Oregon to take the Doubles/Triples endorsement skills test. You will need to bring your CDL, endorsement application form, and any other required documents or fees.
7. Practice driving with a commercial vehicle that has doubles/triples trailers attached to it so that you are prepared for the skills test.
8. Pass the Doubles/Triples endorsement skills test by demonstrating that you can safely operate a commercial vehicle with doubles/triples trailers attached to it.
9. Pay any required fees and wait for your new CDL with Doubles/Triples endorsement to arrive in the mail.
It is important to note that obtaining a CDL Doubles/Triples endorsement may require additional training and experience beyond what is required for a standard CDL. Be sure to consult with ODOT or a qualified driving instructor for more information on how to prepare for this endorsement.
To obtain a CDL Doubles/Triples license in Oregon, you must meet the following requirements:
1. You must be at least 18 years old to drive within Oregon and 21 years old to drive across state lines or transport hazardous materials.
2. You must hold a valid Oregon Commercial Driver's License (CDL).
3. You must pass the Doubles/Triples endorsement knowledge test and skills test.
4. You must have a valid medical certificate that meets the federal requirements for commercial drivers.
5. You must not have any disqualifying criminal convictions, such as driving under the influence (DUI) or felony convictions involving a commercial motor vehicle.
6. You must not have any other disqualifying factors, such as a suspended or revoked driver's license.
7. You may need to meet additional requirements based on your specific driving situation or employer, such as additional training or endorsements.
It is important to note that obtaining a CDL Doubles/Triples license requires additional knowledge and skills beyond what is required for a standard CDL. Be sure to study and practice extensively before attempting the knowledge and skills tests, and consider seeking additional training or guidance from a qualified driving instructor.
1. You must be at least 18 years old to drive within Oregon and 21 years old to drive across state lines or transport hazardous materials.
2. You must hold a valid Oregon Commercial Driver's License (CDL).
3. You must pass the Doubles/Triples endorsement knowledge test and skills test.
4. You must have a valid medical certificate that meets the federal requirements for commercial drivers.
5. You must not have any disqualifying criminal convictions, such as driving under the influence (DUI) or felony convictions involving a commercial motor vehicle.
6. You must not have any other disqualifying factors, such as a suspended or revoked driver's license.
7. You may need to meet additional requirements based on your specific driving situation or employer, such as additional training or endorsements.
It is important to note that obtaining a CDL Doubles/Triples license requires additional knowledge and skills beyond what is required for a standard CDL. Be sure to study and practice extensively before attempting the knowledge and skills tests, and consider seeking additional training or guidance from a qualified driving instructor.
Yes, you may need specific experience or training to obtain a CDL Doubles/Triples endorsement in Oregon. The Federal Motor Carrier Safety Administration (FMCSA) requires that drivers seeking a Doubles/Triples endorsement have experience operating a commercial vehicle with a single trailer before they can be tested for the endorsement.
In Oregon, you may need to complete a commercial driver training program or receive additional on-the-job training to gain the necessary experience for a Doubles/Triples endorsement. Additionally, your employer may require that you have additional endorsements or certifications, such as a hazardous materials (HazMat) endorsement or tanker endorsement.
It is important to note that operating a commercial vehicle with doubles/triples trailers can be more challenging and requires additional skill and experience beyond what is required for a standard CDL. Be sure to consult with a qualified driving instructor or employer for more information on how to prepare for this endorsement and gain the necessary experience and training.
In Oregon, you may need to complete a commercial driver training program or receive additional on-the-job training to gain the necessary experience for a Doubles/Triples endorsement. Additionally, your employer may require that you have additional endorsements or certifications, such as a hazardous materials (HazMat) endorsement or tanker endorsement.
It is important to note that operating a commercial vehicle with doubles/triples trailers can be more challenging and requires additional skill and experience beyond what is required for a standard CDL. Be sure to consult with a qualified driving instructor or employer for more information on how to prepare for this endorsement and gain the necessary experience and training.
Yes, in Oregon, you must pass a written knowledge test specific to the Doubles/Triples endorsement in addition to the standard CDL knowledge test. The Doubles/Triples knowledge test covers the following topics:
1. Inspection of Double/Triple Trailers: This section tests your knowledge of the inspection process for double/triple trailers, including checking for defects, proper coupling and uncoupling procedures, and ensuring proper load securement.
2. Driving Double/Triple Trailers: This section covers operating techniques when driving double/triple trailers, such as turning and backing up, braking and accelerating, and maintaining control of the vehicle.
3. Coupling and Uncoupling: This section tests your knowledge of coupling and uncoupling procedures for double/triple trailers, including safety precautions and proper sequence of steps.
It is important to study these topics thoroughly before taking the Doubles/Triples endorsement knowledge test to ensure that you are prepared for the exam. Additionally, you may need to complete a skills test with a double/triple trailer to obtain the endorsement.
1. Inspection of Double/Triple Trailers: This section tests your knowledge of the inspection process for double/triple trailers, including checking for defects, proper coupling and uncoupling procedures, and ensuring proper load securement.
2. Driving Double/Triple Trailers: This section covers operating techniques when driving double/triple trailers, such as turning and backing up, braking and accelerating, and maintaining control of the vehicle.
3. Coupling and Uncoupling: This section tests your knowledge of coupling and uncoupling procedures for double/triple trailers, including safety precautions and proper sequence of steps.
It is important to study these topics thoroughly before taking the Doubles/Triples endorsement knowledge test to ensure that you are prepared for the exam. Additionally, you may need to complete a skills test with a double/triple trailer to obtain the endorsement.
In Oregon, to obtain a CDL Doubles/Triples endorsement, you must pass a skills test with a double/triple trailer. During the skills test, you will be evaluated on your ability to perform specific maneuvers with the trailer. The following are the specific skills or maneuvers you may need to demonstrate during the CDL Doubles/Triples endorsement test:
1. Pre-trip Inspection: You will be required to conduct a thorough inspection of your vehicle and ensure that it is safe to operate.
2. Coupling and Uncoupling: You will be asked to couple and uncouple your double/triple trailer correctly and safely.
3. Straight Line Backing: You will be required to back up your double/triple trailer in a straight line for a certain distance.
4. Off-set Backing: You will need to move your double/triple trailer through an off-set alley.
5. Parallel Parking: You will need to parallel park your double/triple trailer in a designated space.
6. Coupling and Uncoupling from the side of the road: You will be asked to safely couple and uncouple your double/triple trailer from the side of the road.
It is important that you practice these maneuvers before taking the test to ensure that you are comfortable with them and can perform them safely and accurately on test day. Additionally, you must follow all safety regulations during the test, including checking for hazards, signaling appropriately, and using proper vehicle control techniques.
1. Pre-trip Inspection: You will be required to conduct a thorough inspection of your vehicle and ensure that it is safe to operate.
2. Coupling and Uncoupling: You will be asked to couple and uncouple your double/triple trailer correctly and safely.
3. Straight Line Backing: You will be required to back up your double/triple trailer in a straight line for a certain distance.
4. Off-set Backing: You will need to move your double/triple trailer through an off-set alley.
5. Parallel Parking: You will need to parallel park your double/triple trailer in a designated space.
6. Coupling and Uncoupling from the side of the road: You will be asked to safely couple and uncouple your double/triple trailer from the side of the road.
It is important that you practice these maneuvers before taking the test to ensure that you are comfortable with them and can perform them safely and accurately on test day. Additionally, you must follow all safety regulations during the test, including checking for hazards, signaling appropriately, and using proper vehicle control techniques.
In Oregon, you are required to have a CDL Doubles/Triples endorsement to operate a commercial vehicle that pulls double or triple trailers. If you are caught operating a double or triple trailer without the proper endorsement, you may be subject to fines and penalties.
It is important to note that the requirements for obtaining a CDL Doubles/Triples endorsement can vary by state and it is important to check the specific requirements in your state before operating a double/triple trailer. In addition to obtaining the endorsement, you may also need to meet other state-specific requirements, such as age restrictions and medical certification, before being allowed to operate a commercial vehicle with double/triple trailers.
It is important to note that the requirements for obtaining a CDL Doubles/Triples endorsement can vary by state and it is important to check the specific requirements in your state before operating a double/triple trailer. In addition to obtaining the endorsement, you may also need to meet other state-specific requirements, such as age restrictions and medical certification, before being allowed to operate a commercial vehicle with double/triple trailers.
In Oregon, you can add a CDL Doubles/Triples endorsement to your existing CDL license. To add the endorsement, you will need to pass a knowledge test and a skills test with a double/triple trailer.
You can visit your local DMV office to apply for the endorsement and take the required tests. You will need to bring your current CDL license and provide proof of your identity and residency.
It is important to note that there may be fees associated with adding the endorsement to your CDL license. The fees can vary depending on the state and the licensing agency, so be sure to check with your local DMV office for specific fee information.
You can visit your local DMV office to apply for the endorsement and take the required tests. You will need to bring your current CDL license and provide proof of your identity and residency.
It is important to note that there may be fees associated with adding the endorsement to your CDL license. The fees can vary depending on the state and the licensing agency, so be sure to check with your local DMV office for specific fee information.
Yes, there are some restrictions and limitations for drivers with a CDL Doubles/Triples endorsement in Oregon.
Firstly, drivers with this endorsement are only allowed to operate commercial vehicles that have double or triple trailers attached. They are not allowed to operate any other types of commercial vehicles that require a CDL.
Secondly, there are certain weight restrictions that apply when operating double or triple trailers. In Oregon, the total weight of the combination of vehicles cannot exceed 105,500 pounds.
Lastly, drivers with a CDL Doubles/Triples endorsement must also comply with all other federal and state regulations related to commercial driving. This includes hours of service regulations, vehicle inspection requirements, and more.
It is important to note that the restrictions and limitations can vary by state, so be sure to check the specific requirements in your state before operating a commercial vehicle with double/triple trailers.
Firstly, drivers with this endorsement are only allowed to operate commercial vehicles that have double or triple trailers attached. They are not allowed to operate any other types of commercial vehicles that require a CDL.
Secondly, there are certain weight restrictions that apply when operating double or triple trailers. In Oregon, the total weight of the combination of vehicles cannot exceed 105,500 pounds.
Lastly, drivers with a CDL Doubles/Triples endorsement must also comply with all other federal and state regulations related to commercial driving. This includes hours of service regulations, vehicle inspection requirements, and more.
It is important to note that the restrictions and limitations can vary by state, so be sure to check the specific requirements in your state before operating a commercial vehicle with double/triple trailers.
In Oregon, there are specific maximum weight and length limits for double/triple trailers that drivers with a CDL Doubles/Triples endorsement must follow.
The maximum weight limit for a double/triple trailer combination in Oregon is 105,500 pounds. This includes the weight of the vehicle, cargo, and all trailers.
In terms of length limits, the maximum length for a double trailer is 28 feet for each trailer, which means a total length of 56 feet. For a triple combination, the maximum length for each trailer is 28 feet, with a total length of 75 feet including the truck.
It's important to note that these weight and length limits can vary by state, so it's important to check with your state's Department of Transportation to ensure that you are following all regulations and requirements. Additionally, drivers should always ensure that they are properly licensed and trained to operate commercial vehicles with double or triple trailers before doing so on public roads.
The maximum weight limit for a double/triple trailer combination in Oregon is 105,500 pounds. This includes the weight of the vehicle, cargo, and all trailers.
In terms of length limits, the maximum length for a double trailer is 28 feet for each trailer, which means a total length of 56 feet. For a triple combination, the maximum length for each trailer is 28 feet, with a total length of 75 feet including the truck.
It's important to note that these weight and length limits can vary by state, so it's important to check with your state's Department of Transportation to ensure that you are following all regulations and requirements. Additionally, drivers should always ensure that they are properly licensed and trained to operate commercial vehicles with double or triple trailers before doing so on public roads.
Yes, there are several specific safety considerations and regulations that drivers with a CDL Doubles/Triples endorsement must follow when driving double or triple trailers in Oregon.
Firstly, it's important to ensure that all trailers are properly connected and secured before driving. This includes checking that all safety chains, electrical connections, and other components are properly attached and functioning.
Secondly, drivers must be aware of the increased length and weight of their vehicle when driving. This can affect stopping distance, turning radius, and overall maneuverability. It's important to drive at a safe speed and maintain a safe following distance from other vehicles on the road.
Thirdly, drivers must be aware of any height or weight restrictions on the roads they will be traveling on. They should plan their route accordingly to avoid any roads with low clearances or weight limits that their vehicle may exceed.
Lastly, drivers should always comply with all hours of service regulations to ensure that they are well-rested and alert while driving. Fatigue is a major factor in many commercial vehicle accidents, so it's important to take breaks as needed and avoid driving when fatigued.
Overall, it's important for drivers with a CDL Doubles/Triples endorsement to be well-trained and familiar with all regulations related to driving double or triple trailers. They should also stay up-to-date on any changes or updates to these regulations to ensure that they are following the most current requirements.
Firstly, it's important to ensure that all trailers are properly connected and secured before driving. This includes checking that all safety chains, electrical connections, and other components are properly attached and functioning.
Secondly, drivers must be aware of the increased length and weight of their vehicle when driving. This can affect stopping distance, turning radius, and overall maneuverability. It's important to drive at a safe speed and maintain a safe following distance from other vehicles on the road.
Thirdly, drivers must be aware of any height or weight restrictions on the roads they will be traveling on. They should plan their route accordingly to avoid any roads with low clearances or weight limits that their vehicle may exceed.
Lastly, drivers should always comply with all hours of service regulations to ensure that they are well-rested and alert while driving. Fatigue is a major factor in many commercial vehicle accidents, so it's important to take breaks as needed and avoid driving when fatigued.
Overall, it's important for drivers with a CDL Doubles/Triples endorsement to be well-trained and familiar with all regulations related to driving double or triple trailers. They should also stay up-to-date on any changes or updates to these regulations to ensure that they are following the most current requirements.
