# 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 possible answer choices. Test questions come from the Vermont Commercial Driver’s 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

### 8. When checking power steering hoses during a pre-trip inspection, you should look for:

Explanation
When doing a pre-trip inspection on a vehicle with power steering, be sure to check the hoses, pumps, and fluid level. In particular, you should check the hoses for leaks.

### 9. If you identify a distracted driver on the road, you should:

Explanation
If you encounter a driver who seems distracted on the road, you should give them plenty of room and maintain a safe following distance.

### 10. The rods in S-cam brakes move the slack adjusters when air pressure is added to the brake chambers. This air pressure is added to the chambers when the driver:

Explanation
When pressing the brake pedal in a vehicle with S-cam brakes, air will enter the brake chambers. The added air pressure will push out the rods and move slack adjusters, twisting the brake camshafts.

### 11. When you must travel down a hill, when should you switch into a lower gear?

Explanation
You should always slow down and shift into a lower gear before starting down a hill. If you do not begin to drive down a hill at a low enough speed, you risk overusing your brakes, causing them to overheat and fade.

### 12. What tells you how much pressure is in your vehicle's air tanks?

Explanation
A vehicle that is equipped with air brakes must also be equipped with a supply pressure gauge. This gauge tells the driver how much air pressure is in each of the vehicle's air tanks.

### 13. Texting while driving is especially dangerous because:

Explanation
Texting while driving is particularly dangerous because it is both a mental and physical distraction to the driver. In addition to diverting a driver's mental attention away from the road, texting requires a person to remove at least one hand from the vehicle's controls.

### 14. You should test the low pressure warning signal by:

Explanation
It is essential that your low pressure warning light functions properly. After allowing the system to charge, you can test the warning signal by rapidly applying and releasing the brake pedal. This will release air from the braking system and the warning signal should come on when pressure drops to a dangerous level.

To obtain a CDL Doubles/Triples endorsement in Vermont, follow these steps:

1. Meet the eligibility requirements: You must have a valid Vermont CDL and be at least 21 years old.

2. Study the Vermont Commercial Driver’s License Manual: This manual contains all the information you need to pass the Doubles/Triples endorsement test.

3. Schedule an appointment to take the Doubles/Triples endorsement test at a Vermont DMV office.

4. Pay the required fee for the endorsement test.

5. Pass the Doubles/Triples endorsement test: The test will include questions about coupling and uncoupling double/triple trailers, checking air brakes, and other related topics.

6. Submit your application for a CDL Doubles/Triples endorsement to Vermont DMV: You must submit your application in person at a DMV office and provide proof of citizenship or legal presence, as well as proof of residency.

7. Pay the required fee for the CDL Doubles/Triples endorsement.

Once you have completed these steps, you will receive your CDL Doubles/Triples endorsement, which will allow you to legally operate double or triple trailers on Vermont roads.
To obtain a CDL Doubles/Triples license in Vermont, you must meet the following requirements:

1. Be at least 21 years old: You must be at least 21 years old to operate a commercial vehicle with a Doubles/Triples endorsement.

2. Hold a valid Vermont CDL: You must already hold a valid Vermont CDL or apply for one before obtaining the Doubles/Triples endorsement.

3. Pass the Doubles/Triples endorsement test: You must pass a written test that covers topics related to operating double or triple trailers, such as coupling and uncoupling, checking air brakes, and more.

4. Submit an application for the CDL Doubles/Triples endorsement: You must submit an application for the endorsement in person at a Vermont DMV office and provide proof of citizenship or legal presence, as well as proof of residency.

5. Pay the required fees: There are fees associated with both the Doubles/Triples endorsement test and the CDL Doubles/Triples endorsement application.

It's important to note that a CDL holder with a Doubles/Triples endorsement is subject to additional driving restrictions. For example, they may not operate double or triple trailers on certain roads or highways, and they may not drive under certain hazardous conditions.
Yes, you do need specific experience or training to obtain a CDL Doubles/Triples endorsement in Vermont.

First, you must hold a valid CDL before applying for the Doubles/Triples endorsement. To obtain a CDL, you must complete a CDL training program and pass the required knowledge and skills tests.

Secondly, to operate double or triple trailers, you must have experience driving commercial vehicles with single trailers. Vermont DMV requires that you have at least one year of experience driving commercial vehicles with a single trailer before applying for the Doubles/Triples endorsement.

Lastly, it is recommended that you receive specialized training on operating double or triple trailers before taking the endorsement test. This can be done through a certified CDL training school or through on-the-job training with an employer.

Therefore, while there is no specific training requirement for the Doubles/Triples endorsement in Vermont, it is recommended that you have experience and specialized training to pass the test and safely operate double or triple trailers on the road.
Yes, there is an additional written test that you must pass to obtain a CDL Doubles/Triples endorsement in Vermont. The test covers topics related to operating double or triple trailers, such as coupling and uncoupling, checking air brakes, weight distribution, and more.

The Doubles/Triples endorsement test is in addition to the general knowledge test that all CDL applicants must pass. If you are applying for the Doubles/Triples endorsement as part of your initial CDL application, you will need to pass both the general knowledge test and the Doubles/Triples endorsement test. If you are adding the endorsement to an existing CDL, you will only need to pass the Doubles/Triples endorsement test.

It's important to study and prepare for the Doubles/Triples endorsement test to ensure that you pass it on your first attempt. You can find study materials and practice tests online or through a certified CDL training school.
During the CDL Doubles/Triples endorsement test in Vermont, you will be required to demonstrate a number of specific skills and maneuvers to show that you can safely and efficiently operate double or triple trailers on the road. Some of the skills that you may be asked to demonstrate during the test include:

1. Coupling and uncoupling double or triple trailers
2. Inspecting double or triple trailers for safety and compliance
3. Checking air brakes and other safety features on double or triple trailers
4. Maneuvering double or triple trailers in a straight line, through curves, and around obstacles
5. Changing lanes with double or triple trailers
6. Turning with double or triple trailers
7. Backing up with double or triple trailers

It's important to note that the specific skills and maneuvers tested during the CDL Doubles/Triples endorsement may vary depending on the state and testing location. Therefore, it's recommended that you check with your local Vermont DMV office to find out the specific requirements for your area.

It's also important to practice these skills thoroughly before taking the test, either through on-the-job training with an employer or through a certified CDL training school. By practicing these skills and maneuvers, you'll increase your chances of passing the Doubles/Triples endorsement test and becoming a safe and competent commercial driver.
No, you cannot operate double or triple trailers without a CDL Doubles/Triples endorsement. In Vermont, operating a commercial vehicle that requires a CDL Doubles/Triples endorsement without one is a violation of state and federal law.

To operate double or triple trailers legally, you must hold a valid CDL with the Doubles/Triples endorsement. This endorsement demonstrates that you have the knowledge and skills necessary to safely operate these types of vehicles on the road.

If you are caught operating a commercial vehicle that requires a Doubles/Triples endorsement without one, you may face fines, penalties, and even the suspension or revocation of your CDL. Additionally, operating these vehicles without the proper training and certification can be extremely dangerous to yourself and others on the road.

Therefore, it's important to ensure that you obtain the proper endorsements and certifications before operating any commercial vehicle on the road.
In Vermont, you can add the CDL Doubles/Triples endorsement to your existing CDL license by passing the required knowledge and skills tests. You do not need to apply for a new license.

To add the Doubles/Triples endorsement to your CDL, you must first pass the written knowledge test for the endorsement. This test covers topics such as coupling and uncoupling double or triple trailers, inspecting double or triple trailers, and checking air brakes and other safety features on double or triple trailers.

Once you pass the written test, you will then need to pass a skills test that includes a pre-trip inspection of a double or triple trailer, basic control skills, and an on-road driving test with a double or triple trailer.

If you pass both the written knowledge test and the skills test, Vermont DMV will add the Doubles/Triples endorsement to your existing CDL license.

It's important to note that you may need to pay a fee to add the endorsement to your license, and that you will be subject to any additional medical certification requirements associated with operating vehicles with double or triple trailers.

Therefore, it's recommended that you study and practice thoroughly before taking the tests to ensure that you have the knowledge and skills necessary to pass and safely operate commercial vehicles with double or triple trailers.
Yes, there are some restrictions and limitations for drivers with a CDL Doubles/Triples endorsement in Vermont. These restrictions are designed to ensure the safety of the driver, the vehicle, and other drivers on the road.

Here are some common restrictions and limitations that apply to CDL drivers with Doubles/Triples endorsement:

1. Weight restrictions: Drivers with a Doubles/Triples endorsement may be subject to weight restrictions for their vehicle or combination of vehicles. This is determined by the Gross Vehicle Weight Rating (GVWR) of the vehicles.

2. Length restrictions: Drivers with a Doubles/Triples endorsement may be subject to length restrictions for their vehicle or combination of vehicles. This is determined by the overall length of the combination.

3. Route restrictions: Some roads and highways may have restrictions on the types of vehicles that can use them, including those with double or triple trailers. It's important for drivers to plan their routes accordingly and follow all posted signage.

4. Speed limitations: The maximum speed limit for vehicles with double or triple trailers is 65 miles per hour on most highways in Vermont.

5. Additional endorsements: Depending on the type of cargo being transported, drivers may need additional endorsements such as Hazmat, Tanker, or Passenger endorsements.

It's important for CDL drivers with Doubles/Triples endorsement to be aware of these restrictions and limitations and to adhere to them at all times. Failure to do so can result in fines, penalties, and even suspension or revocation of the CDL license.
In Vermont, the maximum weight and length limits for double/triple trailers with a CDL Doubles/Triples endorsement are determined by federal and state laws. These limits are in place to ensure the safety of the driver, the vehicle, and other drivers on the road.

Here are the maximum weight and length limits for double/triple trailers with a CDL Doubles/Triples endorsement in Vermont:

1. Maximum weight limit: The maximum weight limit for double/triple trailers is 80,000 pounds. This includes the weight of both the truck and the trailers.

2. Maximum length limit: The maximum length limit for double/triple trailers is 28 feet per trailer. This means that a combination of two trailers cannot exceed 56 feet in total length.

It's important to note that these limits may be further restricted by local ordinances, bridge weight limitations, or other factors. Drivers with a CDL Doubles/Triples endorsement should always check for any restrictions or limitations before starting their trip and follow all posted signage.

It's also important to properly distribute the weight of cargo within the trailers to ensure that the vehicle remains stable and balanced while in motion. Overloading or improper loading can lead to accidents or damage to the vehicle or cargo.
Yes, there are specific safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in Vermont. These regulations are in place to ensure the safety of the driver, the vehicle, and other drivers on the road.

Here are some of the safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement:

1. Vehicle inspection: Drivers with a CDL Doubles/Triples endorsement must conduct a thorough inspection of their vehicle before beginning their trip. This includes checking the brakes, tires, lights, and other components to ensure that they are in good working order.

2. Proper weight distribution: The weight of the cargo must be properly distributed within the trailers to ensure that the vehicle remains stable and balanced while in motion. Overloading or improper loading can lead to accidents or damage to the vehicle or cargo.

3. Slow down and increase following distance: Drivers with double/triple trailers should slow down and increase their following distance to allow for increased stopping distance due to the additional weight and length of their vehicle.

4. Use proper turning techniques: When turning with double/triple trailers, drivers should use proper techniques such as swinging wide and turning slowly to avoid jackknifing or tipping over.

5. Stay alert: Drivers with double/triple trailers should be alert at all times, watching for potential hazards on the road such as potholes, construction zones, or other obstacles that could cause an accident.

6. Adhere to posted signage: Drivers must adhere to all posted signage related to weight limits, length limits, and other restrictions on roads and highways.

Failure to adhere to these regulations can result in fines, penalties, and even suspension or revocation of the CDL license. It's important for drivers with a CDL Doubles/Triples endorsement to stay up-to-date on all safety regulations and best practices for driving their vehicles.