Combination #1
Combination Vehicles Practice Test | North Carolina 2024 #1 Page 4 of 4
Train for FREE online with our North Carolina CDL combination vehicle test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a NC combination license in 2024, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that DMV requirements for issuing a combination license may vary from state to state.
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19 . The trailer hand valve should be used:
To test the lights on the trailer.
The trailer hand valve, also called the trolley valve or Johnson bar, is used to work the trailer brakes. It should be used only to test the brakes.
20 . To test the trailer service brakes, you should:
Move the vehicle forward slowly and apply the brakes with the hand control.
To test the trailer service brakes, you should first ensure that the braking system has a normal air pressure level, then release the parking brake. You should then move the vehicle forward slowly and apply the brakes with the hand control. If the trailer service brakes are working properly, you will feel the brakes activate.
21 . The service air line is attached to the:
Steering wheel.
The service air line carries air and is controlled by either the foot brake or trailer hand brake. The service air line is attached to relay valves, which allow the trailer brakes to be applied quickly.
22 . Driving a combination vehicle ____ than driving a single vehicle.
Is safer in inclement weather
Driving a combination vehicle usually requires more skill than driving a single vehicle. Combination vehicles are generally longer and heavier than single commercial vehicles.
23 . If an air supply control is in its "emergency" position:
Tractor protection controls in older vehicles may be operated by levers instead of knobs. If an air supply control is set in its "emergency" position, the air supply will be stopped and the trailer emergency brakes will be applied.
24 . Before a trip, you can make sure air flows to all trailers by:
Before a trip, ensure that air in the air brake system reaches all trailers. Do this by waiting for air pressure to build, then sending air to both the emergency and service lines and opening the shut-off valves on the rear of the last trailer. If air escapes from the shut-off valves in the rear of the combination, the air is being supplied to the entire vehicle.
25 . When connecting a converter dolly to a second trailer, the trailer height should be ____ the center of the fifth wheel.
When connecting a converter dolly to a second or third trailer, the trailer height should correct. It should be slightly lower than the center of the fifth wheel.
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2024 North Carolina | Frequently Asked Questions
A CDL Class A license in North Carolina allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 or more pounds, given the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is over 10,000 pounds. This category typically includes tractor-trailers and truck and trailer combinations.
A Class A CDL (Commercial Driver's License) in North Carolina allows the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the GVWR of the vehicle(s) being towed exceeds 10,000 pounds. This typically includes tractor-trailers, truck and trailer combinations, tank vehicles, and livestock carriers.
To obtain a Class A CDL in North Carolina, you must be at least 18 years old (21 for interstate driving), have a valid North Carolina driver's license, pass a vision test, and obtain a commercial learner's permit by passing written knowledge tests. You'll also need to pass a skills test which includes a pre-trip vehicle inspection, a basic controls test, and a road test.
In North Carolina, you must be at least 18 years old to qualify for a Class A CDL license for intrastate driving (within the state). However, you need to be at least 21 years old if you plan to drive commercially across state lines (interstate driving) or carry hazardous materials.
Specific endorsements aren't required for a Class A CDL license, but they can provide additional driving privileges. For example, endorsements are available for double/triple trailers, tanker vehicles, passenger vehicles, and hazardous materials. Each endorsement requires passing a separate knowledge test and, in some cases, a skills test.
The Class A CDL skills test in North Carolina encompasses three main components: a pre-trip vehicle inspection to assess your ability to determine whether your vehicle is safe for the road, a basic controls test to evaluate your basic maneuvering skills, and a road test to validate your on-road driving ability, including left and right turns, intersections, railway crossings, and various types of roadways.
Yes, Class A CDL license holders in North Carolina may face limitations. These can include restrictions based on medical conditions, such as hearing or vision impairments, or restrictions to operating only automatic transmission vehicles. Additionally, drivers under the age of 21 are restricted to intrastate driving (within North Carolina) only.
In North Carolina, the written Class A CDL test is primarily administered in English, following federal regulations. However, accommodations may be made for applicants with limited English proficiency. It's recommended to contact the North Carolina Division of Motor Vehicles directly to inquire about any available language assistance or resources.
Yes, you can request accommodations for the Class A CDL written test in North Carolina if you have a disability. The North Carolina DMV complies with the Americans with Disabilities Act and offers reasonable accommodations to help individuals with disabilities. You should contact your local DMV office in advance to discuss your needs and arrange appropriate accommodations.
Yes, you can retake the Class A CDL written test in North Carolina if you fail on your first attempt. However, you must wait at least one day before attempting the test again. If you fail three times, you'll need to wait at least 60 days before retesting. Remember, each attempt may require a new testing fee.
