Knowledge Test Class A #2

FREE District of Columbia CDL Practice Test 2024 - DMV Practice Test

The gross domestic product (GDP) of Washington, D.C. is $99 billion per year, despite its small size of 68 square miles. More than 2,100 times the size of the state. Without commercial drivers to transport goods and products in and out of the district, such a big GDP would be impossible to achieve — which is where you come..

The gross domestic product (GDP) of Washington, D.C. is $99 billion per year, despite its small size of 68 square miles. More than 2,100 times the size of the state. Without commercial drivers to transport goods and products in and out of the district, such a big GDP would be impossible to achieve — which is where you come in. This practice quiz will assist you in obtaining or renewing your commercial driver's license (CDL) by providing realistic practice for the CDL written exam. These 50 multiple-choice questions include key knowledge from the Commercial Driver License Manual in Washington, D.C., as well as federal and local laws. Right-of-way rules, braking and shifting tactics, driving in adverse weather and road conditions, handling emergency situations, and more will all be put to the test. To ensure that you can correctly answer future questions, use the suggestion supplied with each question and read the explanations attentively. Return and practice until you are confident in your understanding of the material.

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1 . Off-ramps:

Should be used only if following another vehicle. The combination of slopes and curves can make freeway on- and off-ramps dangerous for trucks. Remember that posted speed limits on ramps may be safe to be driven by cars but too fast to be driven by large or heavily-loaded vehicles.

2 . Move over laws require a driver approaching a stopped emergency vehicle to:

Increase their speed. If an emergency vehicle using its flashing lights is stopped on the side of a multilane road, move over laws require drivers to vacate the lane directly next to the vehicle, if possible. If a driver cannot move over safely, they must slow down and proceed with caution.

3 . When checking its automatic transmission fluid, the vehicle:

Should be lifted with a jack. Your vehicle's engine may need to be running in order for you to check the level of its automatic transmission fluid.

4 . When a vehicle is started, warning lights and buzzers:

Should not come on. After an engine is started, the warning lights and buzzers for oil, coolant, charging circuits, and the Anti-Lock Braking System (ABS) should go out right away.

5 . When checking your vehicle's lights before driving:

The check can be done by looking at a reflection from a shiny surface. To check your vehicle's lights before a trip, you should set the parking brake, turn off the engine, remove the key from the ignition, and take the key with you. Turn on your low beam headlights and four-way flashers. Get out of the vehicle to make sure the lights are working properly.

6 . While driving, if it is discovered a vehicle's ABS is not working, the driver should:

Use their parking brake to stop. If an Anti-Lock Braking System (ABS) is not working, the vehicle's basic braking functions are still intact. The driver should continue to drive and brake in a normal fashion.

7 . An item that is 40 feet long placed on a flatbed trailer should be secured by at least ____ tie-down(s).

Four Cargo on a flatbed trailer should be secured by at least one tie-down for every 10 feet of the cargo's length. Cargo should be secured by a minimum of two tie-downs, regardless of size.

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2024 District Of Columbia | Frequently Asked Questions

To secure a CDL Doubles/Triples endorsement in the District of Columbia, you must first have a valid commercial driver's license (CDL). Then, you must pass the Doubles/Triples Knowledge Test. Once you pass this test, the endorsement will be added to your CDL. Please note that specific training may be required depending on your employer.
To obtain a CDL Doubles/Triples license in the District of Columbia, you need a valid CDL. You must then pass the Doubles/Triples Knowledge Test. Some employers may require specific training. It's also important to have a good driving record, as serious traffic violations could disqualify you from obtaining this endorsement.
While the District of Columbia doesn't specifically require specialized training for a CDL Doubles/Triples endorsement, you must pass the Doubles/Triples Knowledge Test. However, many employers prefer drivers with specific training or experience driving these types of vehicles. It's recommended to seek out training programs to increase your knowledge and skills.
Yes, to obtain a CDL Doubles/Triples endorsement in the District of Columbia, you must pass the Doubles/Triples Knowledge Test at the Department of Motor Vehicles (DMV). This test evaluates your understanding of the special skills and knowledge needed to safely operate these types of vehicles.
The CDL Doubles/Triples endorsement test primarily focuses on knowledge rather than specific maneuvers. You'll need to understand safety procedures, coupling and uncoupling, inspecting doubles and triples, and checking air brake systems. However, actual driving skills for these vehicles are typically evaluated by employers during training or probation periods rather than during the endorsement test.
No, it is not permissible to operate double or triple trailers without a valid CDL Doubles/Triples endorsement in the District of Columbia. Driving these types of vehicles requires specific knowledge and skills, which are validated through the endorsement. Operating without the appropriate endorsement can result in fines, license suspension, or even legal action.
You can add the CDL Doubles/Triples endorsement to your existing CDL. You don't need to initiate a new application for a CDL. However, you must pass the Doubles/Triples knowledge test. After passing the test, the endorsement can be added to your current CDL. Always check with your local DMV for specific procedures and requirements.
Yes, there are certain limitations for drivers holding a CDL Doubles/Triples endorsement. They must only drive the specific types of vehicles for which they're endorsed. They're also required to adhere to safety regulations regarding weight, length, and cargo securement. Additionally, these drivers must comply with all federal and state regulations, including hours of service rules.
In the District of Columbia, a double trailer cannot exceed 61 feet in length and a triple trailer cannot exceed 75 feet. The maximum weight per axle is 20,000 pounds, and the total gross weight, including all trailers and the power unit, cannot exceed 80,000 pounds. Violating these limits can result in fines or penalties.
Yes, there are specific safety guidelines. Drivers must ensure their trailers are correctly coupled and the weight is properly distributed. They should make wider turns, maintain a safe following distance, and check all mirrors frequently. Additionally, drivers must follow all federal and state regulations related to hours of service, vehicle inspections, and hazardous materials if applicable.

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