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 Commercial Driver Guide. 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. Bobtail tractors are ____ to stop than tractors attached to full semitrailers.
Explanation
Bobtail tractors are tractors that are not attached to any semitrailers. When operating a bobtail, you should be aware that stopping can be difficult and that it will take a longer distance to come to a complete stop than a tractor attached to a loaded semitrailer.
2. What is road rage?
Explanation
Aggressive driving is defined as operating a motor vehicle in a selfish, bold, or pushy manner. Road rage is defined as operating a motor vehicle with the intent of doing harm to others, or the intent of physically assaulting another driver or their vehicle.
3. When should you slow for a curve?
Explanation
You should always slow to a safe speed before entering a curve. Slowing while within the curve could cause a skid.
4. When starting your vehicle, the coolant temperature should:
Explanation
Watch the gauges in your vehicle before starting a trip. After starting your vehicle's engine, the coolant temperature should begin a gradual rise to the normal operating range.
5. A tread depth of ____ should be in every major groove of a front tire.
Explanation
For safe operation, a commercial motor vehicle needs a tread depth of 4/32 of an inch in every major groove on the front tires, and a tread depth of 2/32 of an inch on other tires.
6. When making a left turn, you should start the turn:
Explanation
When making a left turn, you should wait until you reach the center of the intersection before actually beginning to turn. Due to off-tracking, the left side of your vehicle could hit another driver if you begin turning too early.
7. To change lanes, you should:
Explanation
Always change lanes slowly and smoothly. If you did not see drivers who are already using the lane you wish to occupy, this will give them a chance to get out of your way or honk their horns to alert you. Always signal when changing lanes.
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Frequently Asked Questions
To obtain a CDL Doubles/Triples endorsement in Washington, you need to follow these steps:
1. Obtain a valid Washington State CDL. You cannot get a Doubles/Triples endorsement without first obtaining a CDL.
2. Complete the CDL Doubles/Triples written knowledge test. You can obtain the study materials for this test from the Washington State Department of Licensing (DOL) website or visit a DOL office to get the study materials.
3. Schedule and take the written knowledge test at a DOL office. You will need to pass the test with a score of at least 80% to obtain the endorsement.
4. Once you have passed the written knowledge test, you can schedule and take the CDL Doubles/Triples skills test. This will involve demonstrating your ability to safely operate a vehicle with multiple trailers attached.
5. After passing the skills test, you can apply for your new CDL with the Doubles/Triples endorsement at a DOL office.
It's important to note that there may be additional requirements or fees associated with obtaining a CDL Doubles/Triples endorsement in Washington, so be sure to check with the DOL or visit their website for more information.
1. Obtain a valid Washington State CDL. You cannot get a Doubles/Triples endorsement without first obtaining a CDL.
2. Complete the CDL Doubles/Triples written knowledge test. You can obtain the study materials for this test from the Washington State Department of Licensing (DOL) website or visit a DOL office to get the study materials.
3. Schedule and take the written knowledge test at a DOL office. You will need to pass the test with a score of at least 80% to obtain the endorsement.
4. Once you have passed the written knowledge test, you can schedule and take the CDL Doubles/Triples skills test. This will involve demonstrating your ability to safely operate a vehicle with multiple trailers attached.
5. After passing the skills test, you can apply for your new CDL with the Doubles/Triples endorsement at a DOL office.
It's important to note that there may be additional requirements or fees associated with obtaining a CDL Doubles/Triples endorsement in Washington, so be sure to check with the DOL or visit their website for more information.
To obtain a CDL Doubles/Triples license in Washington, you must meet the following requirements:
1. Be at least 18 years old. You can drive within the state of Washington with a CDL Doubles/Triples license if you are at least 18 years old, but you cannot drive across state lines until you are at least 21 years old.
2. Have a valid Washington State driver's license.
3. Obtain a Commercial Learner's Permit (CLP) by passing the CDL General Knowledge written test and any other required knowledge tests for the type of vehicle(s) you plan to operate.
4. Hold your CLP for at least 14 days before taking the CDL Doubles/Triples skills test.
5. Pass the CDL Doubles/Triples written knowledge test and skills test.
6. Pass a medical examination and obtain a Medical Examiner's Certificate (MEC).
7. Provide proof of residency in Washington State.
8. Pay any required fees.
It's important to note that additional requirements may apply depending on your specific situation, such as if you have any medical conditions or driving violations on your record. Be sure to check with the Washington State Department of Licensing or visit their website for more information on obtaining a CDL Doubles/Triples license.
1. Be at least 18 years old. You can drive within the state of Washington with a CDL Doubles/Triples license if you are at least 18 years old, but you cannot drive across state lines until you are at least 21 years old.
2. Have a valid Washington State driver's license.
3. Obtain a Commercial Learner's Permit (CLP) by passing the CDL General Knowledge written test and any other required knowledge tests for the type of vehicle(s) you plan to operate.
4. Hold your CLP for at least 14 days before taking the CDL Doubles/Triples skills test.
5. Pass the CDL Doubles/Triples written knowledge test and skills test.
6. Pass a medical examination and obtain a Medical Examiner's Certificate (MEC).
7. Provide proof of residency in Washington State.
8. Pay any required fees.
It's important to note that additional requirements may apply depending on your specific situation, such as if you have any medical conditions or driving violations on your record. Be sure to check with the Washington State Department of Licensing or visit their website for more information on obtaining a CDL Doubles/Triples license.
Washington State does not require specific experience or training to obtain a CDL Doubles/Triples endorsement. However, it's recommended that you have some experience driving commercial vehicles before attempting to obtain the Doubles/Triples endorsement, as driving with multiple trailers requires additional skill and experience.
Additionally, some employers may require you to have additional training or experience before allowing you to operate a vehicle with multiple trailers. It's important to check with your potential employer to determine what their specific requirements are.
If you are looking for additional training or experience, there are many truck driving schools and training programs available in Washington State that can help prepare you for the CDL Doubles/Triples endorsement or provide additional training and experience.
Additionally, some employers may require you to have additional training or experience before allowing you to operate a vehicle with multiple trailers. It's important to check with your potential employer to determine what their specific requirements are.
If you are looking for additional training or experience, there are many truck driving schools and training programs available in Washington State that can help prepare you for the CDL Doubles/Triples endorsement or provide additional training and experience.
Yes, to get a CDL Doubles/Triples endorsement in Washington State, you must pass a written knowledge test specific to that endorsement. The test will cover topics such as driving techniques, coupling and uncoupling procedures, and inspection of multiple trailers.
In addition to the CDL Doubles/Triples endorsement knowledge test, you must also pass the CDL General Knowledge written test and any other knowledge tests required for the type of vehicle(s) you plan to operate.
It's important to note that you must hold your Commercial Learner's Permit (CLP) for at least 14 days before taking any CDL skills test, including the Doubles/Triples skills test.
To prepare for the written knowledge tests, you can study the Washington State Commercial Driver Guide, available on the Department of Licensing website or at any Department of Licensing office. You may also find it helpful to take practice tests or enroll in a CDL training program.
In addition to the CDL Doubles/Triples endorsement knowledge test, you must also pass the CDL General Knowledge written test and any other knowledge tests required for the type of vehicle(s) you plan to operate.
It's important to note that you must hold your Commercial Learner's Permit (CLP) for at least 14 days before taking any CDL skills test, including the Doubles/Triples skills test.
To prepare for the written knowledge tests, you can study the Washington State Commercial Driver Guide, available on the Department of Licensing website or at any Department of Licensing office. You may also find it helpful to take practice tests or enroll in a CDL training program.
During the CDL Doubles/Triples endorsement skills test, you will be required to demonstrate your ability to safely operate a vehicle with multiple trailers. The test will consist of the following maneuvers:
1. Pre-Trip Inspection: You must perform a thorough inspection of the vehicle, including all trailers, and explain to the examiner what you are checking for and why.
2. Coupling and Uncoupling: You must demonstrate your ability to properly couple and uncouple the multiple trailers.
3. Straight Line Backing: You must back the vehicle in a straight line for a distance of at least 100 feet.
4. Off-Set Backing: You must back the vehicle into a space offset to one side, using an alley dock or similar maneuver.
5. Alley Dock: You must back the vehicle into an alley dock, which is a space with barriers on each side that simulate a loading dock.
6. On-Road Driving: You will be evaluated on your ability to safely operate the vehicle in traffic, including turning, merging, and changing lanes.
It's important to note that each state may have slightly different requirements for the Doubles/Triples endorsement skills test, so it's important to check with your local Department of Licensing for specific details about the test in your area.
1. Pre-Trip Inspection: You must perform a thorough inspection of the vehicle, including all trailers, and explain to the examiner what you are checking for and why.
2. Coupling and Uncoupling: You must demonstrate your ability to properly couple and uncouple the multiple trailers.
3. Straight Line Backing: You must back the vehicle in a straight line for a distance of at least 100 feet.
4. Off-Set Backing: You must back the vehicle into a space offset to one side, using an alley dock or similar maneuver.
5. Alley Dock: You must back the vehicle into an alley dock, which is a space with barriers on each side that simulate a loading dock.
6. On-Road Driving: You will be evaluated on your ability to safely operate the vehicle in traffic, including turning, merging, and changing lanes.
It's important to note that each state may have slightly different requirements for the Doubles/Triples endorsement skills test, so it's important to check with your local Department of Licensing for specific details about the test in your area.
No, you cannot legally operate a commercial vehicle with double or triple trailers without a CDL Doubles/Triples endorsement. In Washington State, you are required to have a CDL with the Doubles/Triples endorsement if you plan to operate a combination of vehicles that includes more than one trailer.
Additionally, federal law requires drivers operating vehicles with double or triple trailers to have a Doubles/Triples endorsement on their CDL. This endorsement is necessary because operating multiple trailers requires specialized skills and knowledge that are not covered in the standard CDL knowledge and skills tests.
If you are caught operating a commercial vehicle with multiple trailers without the proper endorsement, you may face fines, points on your driving record, and even suspension or revocation of your CDL. Not only is it illegal to operate a vehicle without the proper endorsement, it's also unsafe and puts yourself and others on the road at risk.
Additionally, federal law requires drivers operating vehicles with double or triple trailers to have a Doubles/Triples endorsement on their CDL. This endorsement is necessary because operating multiple trailers requires specialized skills and knowledge that are not covered in the standard CDL knowledge and skills tests.
If you are caught operating a commercial vehicle with multiple trailers without the proper endorsement, you may face fines, points on your driving record, and even suspension or revocation of your CDL. Not only is it illegal to operate a vehicle without the proper endorsement, it's also unsafe and puts yourself and others on the road at risk.
In Washington State, the CDL Doubles/Triples endorsement can be added to your existing CDL license. To add the endorsement, you will need to pass the Doubles/Triples endorsement knowledge test and the Doubles/Triples endorsement skills test.
Here are the steps to add the CDL Doubles/Triples endorsement to your existing CDL license in Washington:
1. Study for the Doubles/Triples endorsement knowledge test. You can obtain a copy of the Washington State Commercial Driver Guide or access it online to study for the test.
2. Schedule an appointment to take the Doubles/Triples endorsement knowledge test at a Washington State Department of Licensing office.
3. Pass the Doubles/Triples endorsement knowledge test.
4. Schedule an appointment to take the Doubles/Triples endorsement skills test at a Washington State Department of Licensing office.
5. Pass the Doubles/Triples endorsement skills test.
6. Pay the required fee to add the Doubles/Triples endorsement to your CDL license.
Once you have passed both tests and paid the required fee, your CDL license will be updated to include the Doubles/Triples endorsement. You will receive a new license with the updated information within 10 business days.
Here are the steps to add the CDL Doubles/Triples endorsement to your existing CDL license in Washington:
1. Study for the Doubles/Triples endorsement knowledge test. You can obtain a copy of the Washington State Commercial Driver Guide or access it online to study for the test.
2. Schedule an appointment to take the Doubles/Triples endorsement knowledge test at a Washington State Department of Licensing office.
3. Pass the Doubles/Triples endorsement knowledge test.
4. Schedule an appointment to take the Doubles/Triples endorsement skills test at a Washington State Department of Licensing office.
5. Pass the Doubles/Triples endorsement skills test.
6. Pay the required fee to add the Doubles/Triples endorsement to your CDL license.
Once you have passed both tests and paid the required fee, your CDL license will be updated to include the Doubles/Triples endorsement. You will receive a new license with the updated information within 10 business days.
Yes, there are some restrictions and limitations for drivers with a CDL Doubles/Triples endorsement. Here are a few of them:
1. Combination Vehicle Weight Limit: Drivers with a CDL Doubles/Triples endorsement are restricted to operating combination vehicles with a weight limit of 80,000 pounds. This includes the weight of the tractor, trailers, and cargo.
2. Trailer Length Limit: Drivers with a CDL Doubles/Triples endorsement are restricted to operating trailers that are 28 feet or less in length.
3. Trailer Type Limit: Drivers with a CDL Doubles/Triples endorsement are restricted to operating trailers that are specifically designed for double or triple trailer configurations.
4. Specialized Training: Drivers with a CDL Doubles/Triples endorsement must have received specialized training in the operation of double and triple trailer combinations.
5. Endorsement Renewal: The CDL Doubles/Triples endorsement must be renewed every four years to ensure that drivers have up-to-date knowledge on the safe operation of combination vehicles with multiple trailers.
It is important for drivers with a CDL Doubles/Triples endorsement to be aware of these restrictions and limitations to ensure they are in compliance with state and federal regulations.
1. Combination Vehicle Weight Limit: Drivers with a CDL Doubles/Triples endorsement are restricted to operating combination vehicles with a weight limit of 80,000 pounds. This includes the weight of the tractor, trailers, and cargo.
2. Trailer Length Limit: Drivers with a CDL Doubles/Triples endorsement are restricted to operating trailers that are 28 feet or less in length.
3. Trailer Type Limit: Drivers with a CDL Doubles/Triples endorsement are restricted to operating trailers that are specifically designed for double or triple trailer configurations.
4. Specialized Training: Drivers with a CDL Doubles/Triples endorsement must have received specialized training in the operation of double and triple trailer combinations.
5. Endorsement Renewal: The CDL Doubles/Triples endorsement must be renewed every four years to ensure that drivers have up-to-date knowledge on the safe operation of combination vehicles with multiple trailers.
It is important for drivers with a CDL Doubles/Triples endorsement to be aware of these restrictions and limitations to ensure they are in compliance with state and federal regulations.
In Washington State, a driver with a CDL Doubles/Triples endorsement is restricted to operating combination vehicles with a weight limit of 80,000 pounds. However, the maximum weight and length limits for double/triple trailers can vary depending on the type of trailer, the type of cargo being transported, and the specific regulations in each state.
For example, in Washington State, double trailer combinations are limited to a maximum combined length of 68 feet, while triple trailer combinations are limited to a maximum combined length of 75 feet. In addition, double and triple trailer combinations are required to have certain types of equipment, such as an air supply system and a converter dolly.
It's important for drivers with a CDL Doubles/Triples endorsement to be aware of the specific regulations in their state and to ensure they are in compliance with both state and federal regulations regarding weight and length limits for double/triple trailers.
For example, in Washington State, double trailer combinations are limited to a maximum combined length of 68 feet, while triple trailer combinations are limited to a maximum combined length of 75 feet. In addition, double and triple trailer combinations are required to have certain types of equipment, such as an air supply system and a converter dolly.
It's important for drivers with a CDL Doubles/Triples endorsement to be aware of the specific regulations in their state and to ensure they are in compliance with both state and federal regulations regarding weight and length limits for double/triple trailers.
Yes, there are specific safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement. Here are a few of them:
1. Specialized Training: Drivers with a CDL Doubles/Triples endorsement must have received specialized training in the operation of double and triple trailer combinations.
2. Equipment Requirements: Double and triple trailer combinations are required to have certain types of equipment, such as an air supply system, a converter dolly, and a kingpin lock.
3. Weight Distribution: Drivers must ensure that the weight is distributed evenly among the axles of the trailer combination to prevent overloading of any one axle.
4. Turning Radius: Double and triple trailer combinations have a longer turning radius than single vehicles, so drivers must take this into account when making turns.
5. Braking Distance: Double and triple trailer combinations require a longer braking distance than single vehicles, so drivers must maintain a safe following distance from other vehicles.
6. Wind Gusts: Double and triple trailer combinations are more susceptible to being affected by wind gusts, so drivers must be prepared to adjust their driving accordingly in windy conditions.
7. Reduced Speed: Drivers operating double and triple trailer combinations should reduce their speed to ensure that they are able to safely control the vehicle at all times.
It's important for drivers with a CDL Doubles/Triples endorsement to be aware of these safety considerations and regulations to ensure they are operating their vehicle safely and in compliance with state and federal regulations.
1. Specialized Training: Drivers with a CDL Doubles/Triples endorsement must have received specialized training in the operation of double and triple trailer combinations.
2. Equipment Requirements: Double and triple trailer combinations are required to have certain types of equipment, such as an air supply system, a converter dolly, and a kingpin lock.
3. Weight Distribution: Drivers must ensure that the weight is distributed evenly among the axles of the trailer combination to prevent overloading of any one axle.
4. Turning Radius: Double and triple trailer combinations have a longer turning radius than single vehicles, so drivers must take this into account when making turns.
5. Braking Distance: Double and triple trailer combinations require a longer braking distance than single vehicles, so drivers must maintain a safe following distance from other vehicles.
6. Wind Gusts: Double and triple trailer combinations are more susceptible to being affected by wind gusts, so drivers must be prepared to adjust their driving accordingly in windy conditions.
7. Reduced Speed: Drivers operating double and triple trailer combinations should reduce their speed to ensure that they are able to safely control the vehicle at all times.
It's important for drivers with a CDL Doubles/Triples endorsement to be aware of these safety considerations and regulations to ensure they are operating their vehicle safely and in compliance with state and federal regulations.
