# 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..

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 Connecticut 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

### 1. What is Gross Combination Weight?

Explanation
Gross Combination Weight (GCW) is the total weight of a powered unit, its trailer(s), and the cargo being carried.

### 2. Maintaining a cushion of space between your vehicle and the vehicle ahead is:

Explanation
For safe driving, it is essential that you maintain cushions of space on all sides of your vehicle. This helps to ensure that you will have time to take appropriate action if a problem arises.

### 3. If feeling sleepy while driving, you should:

Explanation
If you begin to feel sleepy while driving, the only safe response is to stop driving and get some sleep. Attempting to fight off exhaustion is dangerous and a major cause of fatal crashes. Stimulants are not a safe solution because they may help keep you awake but will not make you more alert. Once stimulants wear off, you will be even more tired than you were originally.

### 4. Brakes can get out of adjustment quickly, especially:

Explanation
Brakes are particularly prone to getting out of adjustment if they are hot. Be sure to routinely check the adjustment of your brakes. For a vehicle to be safely controlled, all brakes must be properly functioning and adjusted.

### 5. During an applied leakage test, the maximum leakage rate for a triple combination vehicle is:

Explanation
It is important to know the maximum air loss rate that is safe for your specific vehicle. A triple combination should have a leakage rate no higher than 6 psi in a minute during an applied leakage test.

### 6. Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:

Explanation
If water and compressor oil are left to build up in an air brake system, the system can be damaged. Air storage tanks are equipped with drains to allow this accumulation to be removed. Manually controlled drains should be operated at the end of each day of driving.

### 7. Rollovers happen when:

Explanation
Rollovers occur when drivers turn or change lanes too quickly.

To obtain a CDL Doubles/Triples endorsement in Connecticut, you need to follow these steps:

1. Obtain a Connecticut Commercial Driver's License (CDL): To obtain a Connecticut CDL, you need to provide the required documents and pass the knowledge and skills test.

2. Meet the eligibility requirements: You must be at least 18 years old to operate within Connecticut and 21 years old to operate across state lines. You must also have a valid medical certificate.

3. Study the CDL Doubles/Triples endorsement manual: The manual contains all the information you need to know about driving doubles/triples vehicles.

4. Schedule an appointment at a DMV office: You can schedule an appointment online or by calling the DMV.

5. Pass the Doubles/Triples knowledge test: The test consists of 20 multiple-choice questions, and you must answer at least 16 correctly to pass.

6. Pass the Doubles/Triples skills test: The skills test evaluates your ability to handle double/triple trailers in different situations, such as turning, backing up, and parking.

7. Pay the endorsement fee: The fee for the Doubles/Triples endorsement is \$15.

Once you have passed both tests and paid the fee, your CDL will be updated with the Doubles/Triples endorsement, and you will be authorized to operate double/triple trailers in Connecticut and across state lines if you meet the age requirement.
To obtain a CDL Doubles/Triples license in Connecticut, you must meet the following requirements:

1. Be at least 18 years old to operate within the state of Connecticut and 21 years old to operate across state lines.

2. Have a valid Connecticut commercial driver's license (CDL).

3. Pass the Connecticut CDL Doubles/Triples knowledge test, which consists of 20 multiple-choice questions. You must answer at least 16 questions correctly to pass.

4. Pass the Connecticut CDL Doubles/Triples skills test, which evaluates your ability to handle double/triple trailers in different situations, such as turning, backing up, and parking.

5. Have a valid medical certificate.

6. Pay the required fee for the Doubles/Triples endorsement.

It is important to note that obtaining a Doubles/Triples endorsement requires additional knowledge and skills beyond those required for a standard CDL license. Therefore, it is recommended that you study the CDL Doubles/Triples endorsement manual thoroughly before taking the knowledge and skills tests.
Yes, you may need specific experience or training to obtain a CDL Doubles/Triples endorsement in Connecticut.

According to the Connecticut DMV, you must have a valid CDL and at least one year of experience driving a commercial vehicle with a Class A or B license before applying for the Doubles/Triples endorsement.

In addition to experience, it is highly recommended that you complete a specialized training program that covers the handling of double/triple trailers. Some truck driving schools and training facilities offer specific courses for Doubles/Triples endorsements, which can provide you with the necessary skills and knowledge to pass the endorsement tests.

It is important to note that operating double/triple trailers requires additional skills and knowledge beyond those required for a standard CDL license. Therefore, it is important to receive proper training and gain sufficient experience before attempting to obtain a Doubles/Triples endorsement.
Yes, to obtain a CDL Doubles/Triples endorsement in Connecticut, you will need to pass an additional written test.

The written test for the Doubles/Triples endorsement is a 20-question multiple-choice exam that covers topics specific to driving double/triple trailers, such as handling and braking, coupling and uncoupling, and inspecting the trailers. You must correctly answer at least 16 out of the 20 questions to pass the test.

It is important to study the Connecticut CDL Doubles/Triples endorsement manual thoroughly before taking the written test. The manual outlines all of the information and skills that you will need to know in order to pass the test and safely operate double/triple trailers.

In addition to the written test, you will also need to pass a skills test that evaluates your ability to handle double/triple trailers in various situations, such as turning, backing up, and parking. The skills test is typically conducted on a closed course or at a designated testing facility.
During the CDL Doubles/Triples endorsement skills test in Connecticut, you will need to demonstrate several specific skills and maneuvers related to driving double/triple trailers. These include:

1. Pre-trip inspection: You will need to demonstrate your ability to properly inspect both the tractor and the trailers for safety and operational issues.

2. Coupling and uncoupling: You will need to properly couple and uncouple the trailers, including connecting air lines, electrical cables, safety chains, and landing gear.

3. Straight line backing: You will need to back up the tractor-trailer combination in a straight line for a specified distance.

4. Off-set backing: You will need to back up the tractor-trailer combination through a series of cones or markers, simulating a real-world situation where you need to maneuver around an obstacle.

5. Parallel parking: You will need to park the tractor-trailer combination in a designated parking spot parallel to the curb or other vehicle.

6. Coupling and uncoupling of doubles/triples: You will need to demonstrate your ability to safely couple and uncouple double/triple trailers.

7. Driving on the road: You will need to safely navigate through traffic while driving double/triple trailers, including making turns, changing lanes, and merging onto highways.

It is important to note that these skills and maneuvers require additional skill and knowledge beyond those required for a standard CDL license. Therefore, it is important to receive proper training and gain sufficient experience before attempting to obtain a Doubles/Triples endorsement or taking the skills test.
No, you cannot legally operate double/triple trailers without a CDL Doubles/Triples endorsement in Connecticut.

In Connecticut, any combination of vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more requires a CDL. This includes double/triple trailers.

To legally drive double/triple trailers, you must first obtain a CDL, and then pass the additional written test and skills test to obtain the Doubles/Triples endorsement.

Driving without the proper CDL and endorsements can result in fines, penalties, and even the suspension or revocation of your commercial driving privileges. It is important to ensure that you have all of the necessary endorsements and training before operating any commercial vehicle on Connecticut roads.

To add the Doubles/Triples endorsement, you will need to pass the written test specific to this endorsement, and then pass the skills test in a vehicle with double/triple trailers.

You can either schedule an appointment at a Connecticut DMV branch office or through a third-party tester authorized by the DMV. You will need to provide identification documents, your current CDL license, and pay the applicable fee.

Once you have successfully passed both tests, your CDL license will be updated to include the Doubles/Triples endorsement.

It is important to note that obtaining a Doubles/Triples endorsement requires additional training and experience beyond that required for a standard CDL license. It is recommended that you receive proper training before attempting to obtain this endorsement.
Yes, there are several restrictions and limitations for drivers with a CDL Doubles/Triples endorsement in Connecticut:

1. Length Limitations: Drivers with a Doubles/Triples endorsement are restricted to operating trailers up to a maximum length of 28 feet each.

2. Weight Limitations: Drivers with a Doubles/Triples endorsement are restricted to operating combination vehicles with a maximum gross vehicle weight rating (GVWR) of 80,000 pounds.

3. Endorsement Limitations: A Doubles/Triples endorsement does not allow you to operate vehicles with other types of endorsements, such as hazardous materials or passenger endorsements, unless you also have those endorsements on your CDL license.

4. Training Requirements: Before operating double/triple trailers, drivers must complete additional training beyond the standard CDL training requirements.

5. Insurance Requirements: Some insurance companies may require additional coverage for drivers with a Doubles/Triples endorsement, so it is important to check with your insurance provider before operating these vehicles.

It is important to abide by these restrictions and limitations to ensure the safety of yourself and other drivers on the road. Violating these restrictions can lead to fines, penalties, and even the suspension or revocation of your commercial driving privileges.
In Connecticut, drivers with a CDL Doubles/Triples endorsement are subject to weight and length limitations when operating double or triple trailers.

The maximum weight limit for combination vehicles, including double or triple trailers, is 80,000 pounds. This is the same as the weight limit for standard commercial vehicles with a CDL license.

The maximum length limit for double trailers is 28 feet per trailer, for a total maximum combined length of 68 feet, including the truck and all trailers. For triple trailers, the maximum length of each trailer is also limited to 28 feet, with a total maximum combined length of 99 feet, including the truck and all trailers.

It's important to note that these weight and length limits are subject to change based on state and federal regulations. As a commercial driver, it's important to stay up-to-date on any changes to these regulations to ensure you are in compliance with the law.
Yes, there are specific safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in Connecticut. Here are some of the most important ones:

1. Proper Loading: Double/triple trailers must be loaded evenly and properly balanced to prevent them from tipping over or becoming unstable while in motion.

2. Increased Stopping Distance: Due to their size and weight, double/triple trailers require significantly more stopping distance than standard commercial vehicles. Drivers should maintain a safe following distance and reduce speed when approaching intersections or other potential hazards.

3. Wide Turns: Double/triple trailers have a longer wheelbase, which makes turning more difficult. Drivers should use caution when turning to avoid striking other vehicles or objects.

4. Mirror Setup: Drivers of double/triple trailers must have properly adjusted mirrors that provide a clear view of all areas around the vehicle.

5. Additional Training: Drivers with a CDL Doubles/Triples endorsement must complete additional training beyond the standard CDL training requirements to ensure they understand the specific safety considerations and regulations for operating these vehicles.

6. Weather Conditions: Drivers must be aware of weather conditions when operating double/triple trailers, especially during high winds or heavy rain, which can increase the risk of instability or accidents.

It is important to follow these safety considerations and regulations to reduce the risk of accidents and ensure the safety of yourself and other drivers on the road.