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 two, three or four possible answer choices. Test questions come from the Utah Commercial Driver License Handbook. 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.
1. Before starting down a hill, you should:
Always downshift before beginning to drive downhill. Take the hill at a speed that does not require you to overuse your brakes.
2. After a tire has been changed, the driver should stop after a short distance to:
After a tire has been changed, you should stop a short while later to re-check the tightness of the lug nuts.
3. When it is difficult to see, such as at dawn or dusk, what is the best way to make your vehicle more visible?
In conditions of poor visibility (such as at dawn, at dusk, in rain, or in snow), you should turn on your low beam headlights to make your vehicle easier to see. Do not use your high beams when driving near other vehicles.
4. When driving on a long downhill slope, you should brake by:
When approaching a long downgrade, you should shift into a lower gear then use proper braking techniques. Using the brakes alone could cause them to overheat and fail. The braking power of the engine, which is maximized by being in a lower gear, will be the principal way of controlling your speed on a downgrade.
5. During a pre-trip inspection, belts in the engine compartment should be:
During a pre-trip inspection, belts in the engine compartment should be checked for tightness and excessive wear.
6. What can the “crack-the-whip” effect do?
The "crack-the-whip" effect can cause a trailer to turn over during a lane change. To avoid this phenomenon, drivers should make lane changes at slow, safe speeds.
7. When stopping in an emergency situation, you should:
If you need to make an emergency stop, you can use either the controlled braking method or the stab braking method. It's important to brake in a way that keeps your vehicle in a straight line but will still allow you to turn if necessary.
Frequently Asked Questions
1. Obtain a Utah Commercial Driver's License (CDL) by passing a written test, a skills test, and a medical examination.
2. Study the Utah CDL Handbook's section on Doubles/Triples.
3. Schedule an appointment to take the Doubles/Triples knowledge test at a Utah DMV office. You must pass this test with a score of at least 80%.
4. Once you have passed the knowledge test, you will need to take a skills test in a vehicle that has doubles/triples trailers attached. You can either use your own vehicle or rent one from a driving school or truck rental company.
5. Pass the doubles/triples skills test with a Utah DMV examiner.
6. Pay the required fee and submit your application for the CDL Doubles/Triples endorsement.
Note that you must be at least 21 years old to obtain this endorsement, since it allows you to operate vehicles with two or three trailers attached.
1. Be at least 21 years old. You must be at least 21 years old to operate vehicles with two or three trailers attached.
2. Hold a valid Utah CDL. You must already have a valid Utah Commercial Driver's License (CDL) before you can apply for the Doubles/Triples endorsement.
3. Pass the CDL Doubles/Triples knowledge test. You must pass a written test that covers the safe operation of double and triple trailers, as well as coupling and uncoupling procedures.
4. Pass the CDL Doubles/Triples skills test. You must pass a driving test in which you operate a vehicle with two or three trailers attached.
5. Pay the required fee. There is an additional fee to add the Doubles/Triples endorsement to your Utah CDL.
6. Meet any additional requirements set by your employer. Some employers may have additional requirements beyond those set by the state, such as certain driving experience or training.
It is important to note that obtaining a CDL Doubles/Triples license requires additional knowledge and skill beyond that required for a standard CDL license, so it is important to study and practice before taking the tests.
Also, some employers may require additional training or experience beyond what is required by the state in order to operate vehicles with doubles/triples trailers. It's important to check with your employer and ensure that you meet any additional requirements they may have.
In any case, it's always a good idea to seek out additional training and practice before attempting the Doubles/Triples skills test. You can do this through a driving school, trucking company training program, or by practicing with a vehicle that has doubles/triples trailers attached under the supervision of an experienced CDL holder.
You must also pass a skills test in which you operate a vehicle with two or three trailers attached, demonstrating your ability to safely maneuver the vehicle and its cargo. The skills test will include exercises such as straight line backing, offset backing, parallel parking, and coupling/uncoupling procedures.
It's important to note that the Doubles/Triples endorsement requires additional knowledge and skills beyond that required for a standard CDL license, so it's important to study and practice before taking the tests. You may want to consider taking a course or seeking additional training specific to doubles/triples operation.
1. Pre-trip inspection: You will be required to inspect the double or triple trailers and ensure that they are safe to operate.
2. Coupling and uncoupling: You will need to demonstrate your ability to properly couple and uncouple the double or triple trailers.
3. Straight line backing: You will be required to back up the vehicle in a straight line for a specified distance.
4. Offset backing: You will need to back up the vehicle into a space that is offset to your left or right.
5. Parallel parking: You will need to park the vehicle in a parallel parking space.
6. Alley docking: You will be required to back up the vehicle into an alley dock.
During these exercises, you must demonstrate your ability to safely maneuver the vehicle and its cargo, while keeping it under control and avoiding hazards. It's important to practice these maneuvers before taking the test and ensure that you are comfortable operating a vehicle with two or three trailers attached.
Without the proper endorsement, you may be subject to fines and penalties, and your license may be suspended or revoked. Additionally, operating a commercial vehicle with double or triple trailers without the proper training and endorsement can be dangerous and put yourself and other drivers on the road at risk.
It's important to obtain the proper training and endorsements before operating any commercial motor vehicle to ensure that you are operating safely and legally.
To add the Doubles/Triples endorsement to your CDL in Utah, you will need to:
1. Pass the Utah CDL Doubles/Triples Knowledge Test: This test covers the rules and regulations related to operating commercial motor vehicles with double or triple trailers.
2. Pass the Utah CDL Doubles/Triples Skills Test: This test will evaluate your ability to safely and efficiently operate a commercial motor vehicle with double or triple trailers.
Once you have passed both tests, you can apply for the endorsement through the Utah Department of Public Safety Driver License Division. You will need to pay a fee for the endorsement, which is in addition to any fees associated with your CDL license.
It's important to note that adding an endorsement to your CDL license may require additional training and practice, so it's recommended that you seek out proper training before attempting to pass the skills test.
In Utah, some of the restrictions and limitations for drivers with a CDL Doubles/Triples endorsement include:
1. Length and Weight Restrictions: There are specific length and weight restrictions for commercial vehicles with double or triple trailers. Drivers with a Doubles/Triples endorsement must adhere to these restrictions.
2. Specialized Driving Skills: Operating a commercial vehicle with double or triple trailers requires specialized driving skills. Drivers with a Doubles/Triples endorsement must demonstrate their ability to operate these vehicles safely and efficiently.
3. Speed Restrictions: Drivers with a Doubles/Triples endorsement are subject to speed restrictions when operating commercial vehicles with double or triple trailers.
4. Endorsement-Specific Requirements: Drivers with a Doubles/Triples endorsement may be subject to additional requirements or regulations specific to their endorsement.
It is important for drivers with a CDL Doubles/Triples endorsement in Utah to be aware of these restrictions and limitations, as violating them can result in fines, penalties, and even the loss of their CDL license.
The maximum weight limit for double or triple trailers with a CDL Doubles/Triples endorsement in Utah is 129,000 pounds. However, this weight limit can vary depending on the type of vehicle, axle spacing, and other factors.
The maximum length limit for double or triple trailers with a CDL Doubles/Triples endorsement in Utah is 80 feet, which includes the length of the tractor.
It's important to note that these weight and length limits are subject to change based on state and federal regulations, so it's important to stay up-to-date on any changes or updates to these regulations. Additionally, drivers with a CDL Doubles/Triples endorsement must adhere to all other regulations and restrictions related to their endorsement to ensure safe operation of their vehicle.
Some of the safety considerations and regulations for driving double/triple trailers with a CDL Doubles/Triples endorsement in Utah include:
1. Specialized Training: Drivers with a CDL Doubles/Triples endorsement must complete specialized training to learn how to operate vehicles with double or triple trailers safely.
2. Pre-Trip Inspections: Drivers must perform pre-trip inspections before operating their vehicles to ensure that all equipment is in good working condition.
3. Weight Distribution: Proper weight distribution is essential when transporting cargo with double or triple trailers. Drivers must ensure that their cargo is evenly distributed to prevent tipping or jackknifing.
4. Speed Limits: Speed limits are often lower for vehicles with double or triple trailers. Drivers must adhere to these speed limits to ensure safe operation of their vehicles.
5. Braking Systems: Double or triple trailers require specialized braking systems to ensure safe operation. Drivers must ensure that their braking systems are working properly before operating their vehicles.
6. Following Distance: Drivers must maintain a safe following distance when operating vehicles with double or triple trailers, as these vehicles require more time and distance to stop.
7. Turning and Maneuvering: Vehicles with double or triple trailers require more space to turn and maneuver than standard commercial vehicles. Drivers must be aware of their vehicle's turning radius and maneuverability to avoid accidents.
It's important for drivers with a CDL Doubles/Triples endorsement in Utah to be aware of these safety considerations and regulations, as violating them can result in fines, penalties, and even the loss of their CDL license.