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. Test questions come from the Ohio Commercial Driver’s 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. When entering a curve, you should:
Explanation
You should always slow down to a safe speed and shift into a lower gear before entering a curve.
2. When applying your brakes, the vehicle should:
Explanation
Your vehicle pulling to one side or the other while you are braking can indicate trouble with the brakes.
3. Of the following, which is the most slippery surface?
Explanation
Ice becomes wet when the weather is just warm enough to melt the ice slightly. Wet ice is much more slippery than ice that is not wet.
4. During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?
Explanation
When performing a static leakage test on a double combination vehicle with air brakes, the leakage rate should be no more than 3 psi in one minute. If the air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.
5. When you are about to start down a hill, you should switch into a ____ gear.
Explanation
Before starting down a hill, be sure to switch into a low gear. Gravity will increase your vehicle's speed as you travel downhill.
6. The air compressor is connected to the:
Explanation
The air compressor of an air brake system is connected to the engine through gears or a v-belt. The compressor may be air-cooled or cooled by the engine cooling system.
7. 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.
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Frequently Asked Questions
To obtain a CDL Doubles/Triples endorsement in Ohio, you must follow these steps:
1. Meet the eligibility requirements: You must be at least 18 years old and hold a valid Ohio CDL.
2. Study the Ohio CDL Driver’s Handbook: You can obtain a copy of the handbook from any Ohio Bureau of Motor Vehicles (BMV) office or download it from the Ohio BMV website.
3. Schedule an appointment for the knowledge test: You can schedule an appointment online or by visiting any Ohio BMV office.
4. Pass the knowledge test: The knowledge test consists of 20 multiple choice questions and you must answer at least 16 questions correctly to pass.
5. Pay the required fee: The fee for the Doubles/Triples endorsement is $25.
6. Schedule an appointment for the skills test: You can schedule an appointment online or by visiting any Ohio BMV office.
7. Pass the skills test: The skills test involves a pre-trip inspection, basic vehicle control, and on-road driving test with a vehicle equipped with doubles or triples.
8. Receive your CDL Doubles/Triples endorsement: If you pass the skills test, you will receive your CDL Doubles/Triples endorsement added to your Ohio CDL.
1. Meet the eligibility requirements: You must be at least 18 years old and hold a valid Ohio CDL.
2. Study the Ohio CDL Driver’s Handbook: You can obtain a copy of the handbook from any Ohio Bureau of Motor Vehicles (BMV) office or download it from the Ohio BMV website.
3. Schedule an appointment for the knowledge test: You can schedule an appointment online or by visiting any Ohio BMV office.
4. Pass the knowledge test: The knowledge test consists of 20 multiple choice questions and you must answer at least 16 questions correctly to pass.
5. Pay the required fee: The fee for the Doubles/Triples endorsement is $25.
6. Schedule an appointment for the skills test: You can schedule an appointment online or by visiting any Ohio BMV office.
7. Pass the skills test: The skills test involves a pre-trip inspection, basic vehicle control, and on-road driving test with a vehicle equipped with doubles or triples.
8. Receive your CDL Doubles/Triples endorsement: If you pass the skills test, you will receive your CDL Doubles/Triples endorsement added to your Ohio CDL.
To get a CDL Doubles/Triples license, you must meet the following requirements:
1. Be at least 18 years old: You can apply for a Doubles/Triples endorsement, but you must be 21 years old to operate a commercial vehicle across state lines.
2. Hold a valid Ohio CDL: You must have a valid Ohio CDL before applying for a Doubles/Triples endorsement.
3. Pass the Doubles/Triples knowledge test: You must pass a knowledge test on the safe operation of double and triple trailers. The test covers topics such as coupling and uncoupling, inspecting doubles and triples, and driving techniques.
4. Pass the Doubles/Triples skills test: You must pass a driving skills test in a vehicle equipped with double or triple trailers. The skills test includes a pre-trip inspection, basic vehicle control, and on-road driving test.
5. Pay the required fee: The fee for a Doubles/Triples endorsement is $25 in Ohio.
6. Meet any additional state-specific requirements: Some states may have additional requirements for obtaining a Doubles/Triples endorsement, such as completing specialized training or obtaining additional endorsements.
It's important to note that operating double or triple trailers requires additional skills and knowledge compared to operating a standard commercial vehicle. Therefore, it's recommended to obtain specialized training and practice before taking the knowledge and skills tests to ensure safe operation of these vehicles.
1. Be at least 18 years old: You can apply for a Doubles/Triples endorsement, but you must be 21 years old to operate a commercial vehicle across state lines.
2. Hold a valid Ohio CDL: You must have a valid Ohio CDL before applying for a Doubles/Triples endorsement.
3. Pass the Doubles/Triples knowledge test: You must pass a knowledge test on the safe operation of double and triple trailers. The test covers topics such as coupling and uncoupling, inspecting doubles and triples, and driving techniques.
4. Pass the Doubles/Triples skills test: You must pass a driving skills test in a vehicle equipped with double or triple trailers. The skills test includes a pre-trip inspection, basic vehicle control, and on-road driving test.
5. Pay the required fee: The fee for a Doubles/Triples endorsement is $25 in Ohio.
6. Meet any additional state-specific requirements: Some states may have additional requirements for obtaining a Doubles/Triples endorsement, such as completing specialized training or obtaining additional endorsements.
It's important to note that operating double or triple trailers requires additional skills and knowledge compared to operating a standard commercial vehicle. Therefore, it's recommended to obtain specialized training and practice before taking the knowledge and skills tests to ensure safe operation of these vehicles.
Ohio does not require specific experience or training to obtain a CDL Doubles/Triples endorsement. However, it is highly recommended to seek specialized training to ensure safe operation of double and triple trailers.
Some training programs that can help you prepare for the Doubles/Triples endorsement include:
1. CDL training schools: These schools offer specialized training programs that cover the safe operation of double and triple trailers.
2. Company-sponsored training: Some trucking companies offer on-the-job training for their drivers that includes training for the Doubles/Triples endorsement.
3. Online courses: There are online courses available that cover the knowledge required for the Doubles/Triples endorsement.
It's important to note that operating double or triple trailers requires additional skills and knowledge compared to operating a standard commercial vehicle. Therefore, it's recommended to obtain specialized training and practice before taking the knowledge and skills tests to ensure safe operation of these vehicles.
Some training programs that can help you prepare for the Doubles/Triples endorsement include:
1. CDL training schools: These schools offer specialized training programs that cover the safe operation of double and triple trailers.
2. Company-sponsored training: Some trucking companies offer on-the-job training for their drivers that includes training for the Doubles/Triples endorsement.
3. Online courses: There are online courses available that cover the knowledge required for the Doubles/Triples endorsement.
It's important to note that operating double or triple trailers requires additional skills and knowledge compared to operating a standard commercial vehicle. Therefore, it's recommended to obtain specialized training and practice before taking the knowledge and skills tests to ensure safe operation of these vehicles.
Yes, there is an additional written test for the CDL Doubles/Triples endorsement.
To obtain the Doubles/Triples endorsement in Ohio, you must pass a knowledge test on the safe operation of double and triple trailers. The test covers topics such as coupling and uncoupling, inspecting doubles and triples, and driving techniques.
You must also pass the general knowledge test, which covers basic information on operating a commercial vehicle, before taking the Doubles/Triples endorsement test.
It's important to study and prepare for both tests in order to obtain your CDL Doubles/Triples endorsement. There are training programs and resources available to help you prepare for these exams.
To obtain the Doubles/Triples endorsement in Ohio, you must pass a knowledge test on the safe operation of double and triple trailers. The test covers topics such as coupling and uncoupling, inspecting doubles and triples, and driving techniques.
You must also pass the general knowledge test, which covers basic information on operating a commercial vehicle, before taking the Doubles/Triples endorsement test.
It's important to study and prepare for both tests in order to obtain your CDL Doubles/Triples endorsement. There are training programs and resources available to help you prepare for these exams.
During the CDL Doubles/Triples endorsement test in Ohio, you will be required to demonstrate specific skills and maneuvers related to the safe operation of double and triple trailers.
Here are some of the skills and maneuvers you may be asked to perform during the Doubles/Triples endorsement test:
1. Coupling and uncoupling: You will be asked to demonstrate how to properly couple and uncouple double or triple trailers.
2. Inspection: You will be asked to inspect double or triple trailers for safety issues and identify any problems.
3. Turning: You will be asked to make turns with double or triple trailers, which requires different techniques than turning with a single commercial vehicle.
4. Parking: You will be asked to park a double or triple trailer combination in a specific location.
5. Backing up: You will be asked to back up a double or triple trailer combination in a straight line and around corners.
You should practice these maneuvers and skills before taking the Doubles/Triples endorsement test. It's important to remember that operating double or triple trailers requires additional skills and knowledge compared to operating a standard commercial vehicle, so practice is key for safe operation.
Here are some of the skills and maneuvers you may be asked to perform during the Doubles/Triples endorsement test:
1. Coupling and uncoupling: You will be asked to demonstrate how to properly couple and uncouple double or triple trailers.
2. Inspection: You will be asked to inspect double or triple trailers for safety issues and identify any problems.
3. Turning: You will be asked to make turns with double or triple trailers, which requires different techniques than turning with a single commercial vehicle.
4. Parking: You will be asked to park a double or triple trailer combination in a specific location.
5. Backing up: You will be asked to back up a double or triple trailer combination in a straight line and around corners.
You should practice these maneuvers and skills before taking the Doubles/Triples endorsement test. It's important to remember that operating double or triple trailers requires additional skills and knowledge compared to operating a standard commercial vehicle, so practice is key for safe operation.
No, you cannot legally operate double or triple trailers without a CDL Doubles/Triples endorsement.
In Ohio, the Doubles/Triples endorsement is required for drivers who operate commercial motor vehicles that have two or three trailers attached to them. This endorsement is an additional requirement beyond the standard CDL license.
If you are caught operating a double or triple trailer without the proper endorsement, you may be fined and have your commercial driving privileges suspended. It's important to obtain the proper endorsements and follow all rules and regulations related to commercial driving in order to operate safely and legally on the roads.
In Ohio, the Doubles/Triples endorsement is required for drivers who operate commercial motor vehicles that have two or three trailers attached to them. This endorsement is an additional requirement beyond the standard CDL license.
If you are caught operating a double or triple trailer without the proper endorsement, you may be fined and have your commercial driving privileges suspended. It's important to obtain the proper endorsements and follow all rules and regulations related to commercial driving in order to operate safely and legally on the roads.
You can add the CDL Doubles/Triples endorsement to your existing CDL license by taking and passing the appropriate written and skills tests.
In Ohio, to obtain the Doubles/Triples endorsement, you must first pass the written test for this endorsement. Once you have passed the written test, you will need to take a skills test that includes demonstrating your ability to properly couple and uncouple double or triple trailers, inspect them for safety issues, make turns with them, park them in a specific location, and back them up around corners and in a straight line.
Once you have successfully passed both the written and skills tests, the Doubles/Triples endorsement will be added to your existing CDL license.
It's important to note that obtaining any additional endorsements for your CDL license may require additional fees and training. It's always a good idea to check with your local DMV or commercial driving school for specific requirements related to adding endorsements to your CDL license.
In Ohio, to obtain the Doubles/Triples endorsement, you must first pass the written test for this endorsement. Once you have passed the written test, you will need to take a skills test that includes demonstrating your ability to properly couple and uncouple double or triple trailers, inspect them for safety issues, make turns with them, park them in a specific location, and back them up around corners and in a straight line.
Once you have successfully passed both the written and skills tests, the Doubles/Triples endorsement will be added to your existing CDL license.
It's important to note that obtaining any additional endorsements for your CDL license may require additional fees and training. It's always a good idea to check with your local DMV or commercial driving school for specific requirements related to adding endorsements to your CDL license.
Yes, drivers with a CDL Doubles/Triples endorsement are subject to certain restrictions and limitations.
In Ohio, drivers with a Doubles/Triples endorsement are allowed to operate commercial motor vehicles that have two or three trailers attached, but there are some restrictions that apply. These include:
1. You can only operate the specific type of combination vehicle for which you have been licensed.
2. You cannot tow more than one set of doubles or triples.
3. The maximum length of the trailers you can tow is 28.5 feet each.
4. The maximum overall length of the vehicle combination, including the power unit, is 75 feet.
It's important to note that these restrictions and limitations may vary depending on the state and the type of commercial vehicle you are driving. It's always a good idea to check with your local DMV or commercial driving school for specific information on restrictions and limitations that apply to drivers with a Doubles/Triples endorsement in your area.
In Ohio, drivers with a Doubles/Triples endorsement are allowed to operate commercial motor vehicles that have two or three trailers attached, but there are some restrictions that apply. These include:
1. You can only operate the specific type of combination vehicle for which you have been licensed.
2. You cannot tow more than one set of doubles or triples.
3. The maximum length of the trailers you can tow is 28.5 feet each.
4. The maximum overall length of the vehicle combination, including the power unit, is 75 feet.
It's important to note that these restrictions and limitations may vary depending on the state and the type of commercial vehicle you are driving. It's always a good idea to check with your local DMV or commercial driving school for specific information on restrictions and limitations that apply to drivers with a Doubles/Triples endorsement in your area.
The maximum weight and length limits for double/triple trailers with a CDL Doubles/Triples endorsement depend on the state you are in. In Ohio, the maximum weight and length limits for double/triple trailers with a CDL Doubles/Triples endorsement are as follows:
1. Maximum weight: The maximum gross vehicle weight (GVW) allowed for a combination of two or three trailers is 90,000 pounds. This includes the weight of the power unit, the trailers, and the cargo.
2. Maximum length: The maximum length allowed for a combination of two or three trailers is 65 feet, including the power unit. The maximum length for each individual trailer is 28.5 feet.
It's important to note that these weight and length limits may vary depending on the state you are in and the type of commercial vehicle you are driving. It's always a good idea to check with your local DMV or commercial driving school for specific information on weight and length limits that apply to drivers with a Doubles/Triples endorsement in your area.
1. Maximum weight: The maximum gross vehicle weight (GVW) allowed for a combination of two or three trailers is 90,000 pounds. This includes the weight of the power unit, the trailers, and the cargo.
2. Maximum length: The maximum length allowed for a combination of two or three trailers is 65 feet, including the power unit. The maximum length for each individual trailer is 28.5 feet.
It's important to note that these weight and length limits may vary depending on the state you are in and the type of commercial vehicle you are driving. It's always a good idea to check with your local DMV or commercial driving school for specific information on weight and length limits that apply to drivers with a Doubles/Triples endorsement in your area.
Yes, there are specific safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement. Some of these considerations and regulations include:
1. Proper weight distribution: It's important to properly distribute the weight of the cargo among the trailers to ensure stability and prevent swaying.
2. Increased stopping distance: Due to the increased weight and length of the combination vehicle, it takes longer to stop. Drivers should maintain a safe following distance and reduce speed when necessary.
3. Wide turns: The length of the combination vehicle may require wider turns than a single trailer. Drivers should be aware of their surroundings and use caution when turning.
4. Brake system requirements: Combination vehicles with double/triple trailers are required to have a working brake system on all trailers.
5. Proper coupling and uncoupling procedures: Drivers should be trained on proper coupling and uncoupling procedures to ensure that the trailers are securely attached.
6. Height restrictions: Double/triple trailers may have height restrictions due to overpasses or other obstacles on the road.
It is important for drivers with a Doubles/Triples endorsement to be aware of these safety considerations and regulations, as well as any other state or federal regulations that may apply to their specific situation.
1. Proper weight distribution: It's important to properly distribute the weight of the cargo among the trailers to ensure stability and prevent swaying.
2. Increased stopping distance: Due to the increased weight and length of the combination vehicle, it takes longer to stop. Drivers should maintain a safe following distance and reduce speed when necessary.
3. Wide turns: The length of the combination vehicle may require wider turns than a single trailer. Drivers should be aware of their surroundings and use caution when turning.
4. Brake system requirements: Combination vehicles with double/triple trailers are required to have a working brake system on all trailers.
5. Proper coupling and uncoupling procedures: Drivers should be trained on proper coupling and uncoupling procedures to ensure that the trailers are securely attached.
6. Height restrictions: Double/triple trailers may have height restrictions due to overpasses or other obstacles on the road.
It is important for drivers with a Doubles/Triples endorsement to be aware of these safety considerations and regulations, as well as any other state or federal regulations that may apply to their specific situation.
