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 Mississippi Professional Driver’s Manual. Questions come from chapters covering: Driving Safely, Transporting Cargo 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. What should you do if the brake pedal does not build up pressure?
Explanation
If you lose pressure in a hydraulic brake system, one appropriate response is to shift down into a lower gear. This will help slow the vehicle.
2. When coupling, you should:
Explanation
When coupling air brake hoses, you should make sure the proper pairs of gland hands are connected. They are sometimes color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.
3. Roads are especially slippery right after it begins to rain because:
Explanation
Roads are often especially slippery when it first begins to rain. Rainwater forms a slick film when mixed with oil and grease on the road surface that has not yet washed away.
4. To prevent a trailer from rolling over, you should:
Explanation
To reduce the risk of a rollover when driving a combination vehicle, you should keep the weight of the cargo as low to the ground as possible and drive slowly around turns.
5. If the coolant temperature gauge goes above the highest safe temperature, you should:
Explanation
If the coolant temperature gauge goes above the highest safe temperature, you should stop driving as soon as possible and try to figure out what is wrong. There could be an issue in your vehicle that could lead to engine failure and possibly a fire.
6. When transporting cargo, drivers must check the securement of the cargo every:
Explanation
The securement of cargo must be checked before beginning a trip, within the first 50 miles of a trip, and then again every three hours or 150 miles.
7. When loading a trailer, the heaviest cargo should be placed:
Explanation
It is important that vehicles are not top-heavy, if at all possible. A top-heavy vehicle is at an increased risk of rollover. Place the heaviest pieces of cargo underneath lighter pieces of cargo.
Frequently Asked Questions
To obtain a CDL Doubles/Triples endorsement in Mississippi, you need to follow these steps:
1. Obtain a Mississippi Commercial Driver's License (CDL): To be eligible for a Doubles/Triples endorsement, you must hold a valid Mississippi CDL.
2. Meet the requirements: You must be at least 18 years old and meet the physical and medical requirements set by the Federal Motor Carrier Safety Administration (FMCSA).
3. Study the Mississippi CDL Driver's Manual: You must study the Doubles/Triples section of the Mississippi CDL Driver's Manual thoroughly. You can get a copy of the manual from the Department of Public Safety or download it from their website.
4. Practice driving with doubles/triples: You must practice driving with doubles/triples to gain experience and improve your skills.
5. Schedule an appointment for the written test: You need to schedule an appointment with your local Department of Public Safety office to take the written test for Doubles/Triples endorsement.
6. Pass the written test: The written test will cover everything you learned in the Doubles/Triples section of the Mississippi CDL Driver's Manual.
7. Pass the skills test: After passing the written test, you will need to take a skills test that includes a pre-trip inspection, basic control skills, and on-road driving.
8. Pay the fee: After passing both tests, you need to pay the fee for adding Doubles/Triples endorsement to your CDL.
Once you have completed all these steps, you will receive your CDL with Doubles/Triples endorsement from the Mississippi Department of Public Safety.
1. Obtain a Mississippi Commercial Driver's License (CDL): To be eligible for a Doubles/Triples endorsement, you must hold a valid Mississippi CDL.
2. Meet the requirements: You must be at least 18 years old and meet the physical and medical requirements set by the Federal Motor Carrier Safety Administration (FMCSA).
3. Study the Mississippi CDL Driver's Manual: You must study the Doubles/Triples section of the Mississippi CDL Driver's Manual thoroughly. You can get a copy of the manual from the Department of Public Safety or download it from their website.
4. Practice driving with doubles/triples: You must practice driving with doubles/triples to gain experience and improve your skills.
5. Schedule an appointment for the written test: You need to schedule an appointment with your local Department of Public Safety office to take the written test for Doubles/Triples endorsement.
6. Pass the written test: The written test will cover everything you learned in the Doubles/Triples section of the Mississippi CDL Driver's Manual.
7. Pass the skills test: After passing the written test, you will need to take a skills test that includes a pre-trip inspection, basic control skills, and on-road driving.
8. Pay the fee: After passing both tests, you need to pay the fee for adding Doubles/Triples endorsement to your CDL.
Once you have completed all these steps, you will receive your CDL with Doubles/Triples endorsement from the Mississippi Department of Public Safety.
To obtain a CDL Doubles/Triples endorsement in Mississippi, you must meet the following requirements:
1. Age: You must be at least 18 years old to drive within Mississippi and 21 years old to drive interstate.
2. CDL: You must possess a valid Mississippi CDL.
3. Medical requirements: You must meet the medical requirements set by the Federal Motor Carrier Safety Administration (FMCSA).
4. Experience: You must have a valid Mississippi CDL for at least two years.
5. Clean driving record: You must have a clean driving record and not have any disqualifying offenses.
6. Pass written test: You must pass a written test covering the knowledge required to operate Doubles/Triples vehicles.
7. Pass skills test: You must pass a skills test, which includes a pre-trip inspection, basic control skills, and on-road driving.
It's important to note that you will also need to provide identification documents, proof of residency, and pay the required fees when applying for a CDL Doubles/Triples endorsement in Mississippi.
1. Age: You must be at least 18 years old to drive within Mississippi and 21 years old to drive interstate.
2. CDL: You must possess a valid Mississippi CDL.
3. Medical requirements: You must meet the medical requirements set by the Federal Motor Carrier Safety Administration (FMCSA).
4. Experience: You must have a valid Mississippi CDL for at least two years.
5. Clean driving record: You must have a clean driving record and not have any disqualifying offenses.
6. Pass written test: You must pass a written test covering the knowledge required to operate Doubles/Triples vehicles.
7. Pass skills test: You must pass a skills test, which includes a pre-trip inspection, basic control skills, and on-road driving.
It's important to note that you will also need to provide identification documents, proof of residency, and pay the required fees when applying for a CDL Doubles/Triples endorsement in Mississippi.
Yes, you will need specific training or experience to obtain a CDL Doubles/Triples endorsement in Mississippi. The FMCSA requires that you complete a specific training program or have experience driving Doubles/Triples vehicles before you can obtain this endorsement.
The training program must include at least 32 hours of classroom and practical training, covering topics like:
- Inspecting Doubles/Triples vehicles
- Coupling and uncoupling Doubles/Triples vehicles
- Driving Doubles/Triples vehicles safely
- Special driving techniques and considerations for Doubles/Triples vehicles
You can complete this training through a truck driving school or a company that provides CDL training. Alternatively, you can gain the required experience by working as a driver for at least one year while holding a valid CDL.
In addition to the training or experience requirements, you must also pass the written and skills tests mentioned earlier to obtain a CDL Doubles/Triples endorsement in Mississippi.
The training program must include at least 32 hours of classroom and practical training, covering topics like:
- Inspecting Doubles/Triples vehicles
- Coupling and uncoupling Doubles/Triples vehicles
- Driving Doubles/Triples vehicles safely
- Special driving techniques and considerations for Doubles/Triples vehicles
You can complete this training through a truck driving school or a company that provides CDL training. Alternatively, you can gain the required experience by working as a driver for at least one year while holding a valid CDL.
In addition to the training or experience requirements, you must also pass the written and skills tests mentioned earlier to obtain a CDL Doubles/Triples endorsement in Mississippi.
Yes, in addition to the general CDL written test, you will need to take and pass a written test specific to the Doubles/Triples endorsement in Mississippi. The written exam will test your knowledge of the following topics:
- Inspecting Doubles/Triples vehicles
- Coupling and uncoupling Doubles/Triples vehicles
- Driving Doubles/Triples vehicles safely
- Special driving techniques and considerations for Doubles/Triples vehicles
The exam will consist of multiple-choice questions, and you will need to score at least 80% to pass. You can prepare for the exam by studying the Mississippi CDL manual and taking practice tests.
It's important to note that the written test is just one part of obtaining a CDL Doubles/Triples endorsement in Mississippi. You will also need to pass a skills test that includes a pre-trip inspection, basic control skills, and on-road driving in a Doubles/Triples vehicle.
- Inspecting Doubles/Triples vehicles
- Coupling and uncoupling Doubles/Triples vehicles
- Driving Doubles/Triples vehicles safely
- Special driving techniques and considerations for Doubles/Triples vehicles
The exam will consist of multiple-choice questions, and you will need to score at least 80% to pass. You can prepare for the exam by studying the Mississippi CDL manual and taking practice tests.
It's important to note that the written test is just one part of obtaining a CDL Doubles/Triples endorsement in Mississippi. You will also need to pass a skills test that includes a pre-trip inspection, basic control skills, and on-road driving in a Doubles/Triples vehicle.
To obtain a CDL Doubles/Triples endorsement in Mississippi, you will need to pass a skills test that includes the following maneuvers:
1. Pre-Trip Inspection: You will need to demonstrate your ability to inspect the Doubles/Triples vehicle thoroughly and identify any potential safety hazards.
2. Basic Control Skills: You will need to perform several maneuvers that demonstrate your ability to control the Doubles/Triples vehicle, including straight line backing, offset backing, and parallel parking.
3. On-Road Driving: You will need to demonstrate your ability to drive the Doubles/Triples vehicle safely on public roads while obeying traffic laws and regulations. The examiner will evaluate your ability to make turns, change lanes, merge onto highways, and navigate through intersections.
It's important to note that the skills test for the Doubles/Triples endorsement is more challenging than the basic CDL skills test because of the added weight and length of the vehicle. To pass the test, you must demonstrate a high level of skill and confidence in your ability to operate a Doubles/Triples vehicle safely.
1. Pre-Trip Inspection: You will need to demonstrate your ability to inspect the Doubles/Triples vehicle thoroughly and identify any potential safety hazards.
2. Basic Control Skills: You will need to perform several maneuvers that demonstrate your ability to control the Doubles/Triples vehicle, including straight line backing, offset backing, and parallel parking.
3. On-Road Driving: You will need to demonstrate your ability to drive the Doubles/Triples vehicle safely on public roads while obeying traffic laws and regulations. The examiner will evaluate your ability to make turns, change lanes, merge onto highways, and navigate through intersections.
It's important to note that the skills test for the Doubles/Triples endorsement is more challenging than the basic CDL skills test because of the added weight and length of the vehicle. To pass the test, you must demonstrate a high level of skill and confidence in your ability to operate a Doubles/Triples vehicle safely.
No, you cannot operate double/triple trailers without a CDL Doubles/Triples endorsement. In Mississippi, any driver who wants to operate a combination of vehicles consisting of a truck and two or more trailers must have a CDL Doubles/Triples endorsement on their commercial driver's license.
Without this endorsement, you will be restricted to operating single-unit vehicles such as straight trucks or buses with a GVWR (Gross Vehicle Weight Rating) of 26,001 pounds or more.
Federal regulations require drivers to obtain the proper endorsements for the type of vehicle they operate. Driving without the required endorsement can result in fines, penalties, and even the suspension or revocation of your commercial driver's license.
Without this endorsement, you will be restricted to operating single-unit vehicles such as straight trucks or buses with a GVWR (Gross Vehicle Weight Rating) of 26,001 pounds or more.
Federal regulations require drivers to obtain the proper endorsements for the type of vehicle they operate. Driving without the required endorsement can result in fines, penalties, and even the suspension or revocation of your commercial driver's license.
Yes, you can add the CDL Doubles/Triples endorsement to your existing CDL license. In Mississippi, you will need to pass the Doubles/Triples endorsement knowledge test and skills test, which includes a pre-trip inspection, basic control skills, and on-road driving test.
To add the endorsement to your CDL license, you will need to visit a Mississippi Department of Public Safety (DPS) driver's license station and provide the necessary documentation, such as your current CDL license, proof of citizenship or legal presence in the United States, and any required medical documentation.
You will also need to pay the appropriate fees for adding the endorsement to your CDL license. Once you have passed the required tests and provided all necessary documentation and fees, the CDL Doubles/Triples endorsement will be added to your CDL license.
To add the endorsement to your CDL license, you will need to visit a Mississippi Department of Public Safety (DPS) driver's license station and provide the necessary documentation, such as your current CDL license, proof of citizenship or legal presence in the United States, and any required medical documentation.
You will also need to pay the appropriate fees for adding the endorsement to your CDL license. Once you have passed the required tests and provided all necessary documentation and fees, the CDL Doubles/Triples endorsement will be added to your CDL license.
Yes, there are some restrictions and limitations for drivers with a CDL Doubles/Triples endorsement in Mississippi.
Firstly, drivers with a CDL Doubles/Triples endorsement are only authorized to operate a combination of vehicles consisting of a truck and two or more trailers. They are not allowed to operate other types of commercial vehicles, such as passenger buses or tank vehicles, unless they have the appropriate endorsements for those vehicles.
Secondly, drivers with a CDL Doubles/Triples endorsement must follow the specific weight and length restrictions for double/triple trailers established by the state or federal regulations. For example, in Mississippi, the maximum length for a combined vehicle with two trailers is 65 feet, and the maximum weight is 80,000 pounds.
Finally, drivers with a CDL Doubles/Triples endorsement must also follow specific rules related to turning, backing up, and maneuvering their vehicles. They must use caution when turning or changing lanes and must be aware of the added length and weight of their vehicle combination when maneuvering in tight spaces.
It's important to note that violating any of these restrictions or regulations can result in fines, penalties or even the suspension or revocation of your CDL license.
Firstly, drivers with a CDL Doubles/Triples endorsement are only authorized to operate a combination of vehicles consisting of a truck and two or more trailers. They are not allowed to operate other types of commercial vehicles, such as passenger buses or tank vehicles, unless they have the appropriate endorsements for those vehicles.
Secondly, drivers with a CDL Doubles/Triples endorsement must follow the specific weight and length restrictions for double/triple trailers established by the state or federal regulations. For example, in Mississippi, the maximum length for a combined vehicle with two trailers is 65 feet, and the maximum weight is 80,000 pounds.
Finally, drivers with a CDL Doubles/Triples endorsement must also follow specific rules related to turning, backing up, and maneuvering their vehicles. They must use caution when turning or changing lanes and must be aware of the added length and weight of their vehicle combination when maneuvering in tight spaces.
It's important to note that violating any of these restrictions or regulations can result in fines, penalties or even the suspension or revocation of your CDL license.
In Mississippi, drivers with a CDL Doubles/Triples endorsement must follow specific weight and length restrictions for double/triple trailers as established by state and federal regulations.
The maximum weight limit for a double/triple trailer combination is 80,000 pounds. This includes the weight of the vehicle, cargo, and trailers.
The maximum length limit for a double/triple trailer combination is 65 feet. This includes the length of the truck, both trailers, and any connecting devices.
It's important to note that these weight and length limits may vary in different states or jurisdictions, so it's important to check the specific regulations in your area before operating a double/triple trailer combination.
The maximum weight limit for a double/triple trailer combination is 80,000 pounds. This includes the weight of the vehicle, cargo, and trailers.
The maximum length limit for a double/triple trailer combination is 65 feet. This includes the length of the truck, both trailers, and any connecting devices.
It's important to note that these weight and length limits may vary in different states or jurisdictions, so it's important to check the specific regulations in your area before operating a double/triple trailer combination.
Yes, there are specific safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in Mississippi.
Firstly, drivers with this endorsement must have proper training and knowledge of how to operate a vehicle with multiple trailers. They must also be aware of the added length and weight of their vehicle combination and how it affects their ability to maneuver, turn, and stop.
Secondly, drivers must follow specific rules related to turning, backing up, and maneuvering their vehicles. They must use caution when turning or changing lanes and must be aware of the added length and weight of their vehicle combination when maneuvering in tight spaces.
Thirdly, drivers with a CDL Doubles/Triples endorsement must follow specific safety regulations related to the securement of cargo on their vehicles. They must ensure that all cargo is properly secured to prevent it from shifting or falling off the vehicle during transport.
Finally, drivers with this endorsement must follow specific rules related to the inspection and maintenance of their vehicles. They must perform regular inspections to ensure that all components are in good working order and that there are no defects or issues that could cause an accident.
It's important to note that violating any of these safety considerations or regulations can result in fines, penalties or even the suspension or revocation of your CDL license.
Firstly, drivers with this endorsement must have proper training and knowledge of how to operate a vehicle with multiple trailers. They must also be aware of the added length and weight of their vehicle combination and how it affects their ability to maneuver, turn, and stop.
Secondly, drivers must follow specific rules related to turning, backing up, and maneuvering their vehicles. They must use caution when turning or changing lanes and must be aware of the added length and weight of their vehicle combination when maneuvering in tight spaces.
Thirdly, drivers with a CDL Doubles/Triples endorsement must follow specific safety regulations related to the securement of cargo on their vehicles. They must ensure that all cargo is properly secured to prevent it from shifting or falling off the vehicle during transport.
Finally, drivers with this endorsement must follow specific rules related to the inspection and maintenance of their vehicles. They must perform regular inspections to ensure that all components are in good working order and that there are no defects or issues that could cause an accident.
It's important to note that violating any of these safety considerations or regulations can result in fines, penalties or even the suspension or revocation of your CDL license.
