Knowledge Test Class B #1
Class B Driving Test | North Carolina 2025 #1 Page 6 of 7
Train for FREE online with our North Carolina class B license 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 CDL class B permit in 2025, 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 CDL class B requirements may vary from state to state.
50
40
20
36 . Distracted driving:
Can be avoided by not engaging in complex conversations while driving.
To reduce the risk of distraction, do not engage in complex or emotionally intense conversations while driving. Pre-programming radio stations before your trip and avoiding eating, drinking, or smoking while at the wheel can also help you avoid becoming distracted while driving. Remember that mental distractions that take your attention away from the task of driving can be just as dangerous as physical distractions.
37 . While operating a CMV:
You are always required to wear a safety belt.
A safety belt is your best defense in the event of a collision. You must always wear a safety belt while operating a CMV.
38 . Do not operate a vehicle if any brake drums have cracks that are larger than ____ of the width of the friction area.
Before beginning a trip, it is important to check the brake drums during your walk-around inspection. It is unsafe to drive if any brake drum has a crack more than one half of the width of the friction area.
39 . When stopping:
The amount of force required on the brake pedal will be the same each time you slow or stop.
Press the brake pedal down smoothly and gradually every time you slow or stop. The amount of brake pressure you need to apply depends on the speed of your vehicle and how quickly you need to stop.
40 . To receive a hazardous materials endorsement, an applicant will be required to supply:
Their employment history for the previous five years.
To obtain a hazardous materials endorsement, you will be required to submit your fingerprints and undergo a TSA background check.
41 . If approaching a railroad crossing while driving a placarded vehicle, you should always:
Change lanes while on the tracks.
If approaching a railroad crossing while driving a transit bus, school bus, or placarded vehicle, special procedures apply. Before crossing, stop your vehicle within 50 feet of, but not less than 15 feet from, the nearest rail. Activate your four-way flashers while crossing. Do not stop, change gears, or change lanes while any part of your vehicle is proceeding across the tracks.
42 . Why are multi-speed axles and auxiliary transmissions used?
On many vehicles, multi-speed rear axles and auxiliary transmissions are used to provide extra gears.
Search the best driving school in your neighbourhood
2025 North Carolina | Frequently Asked Questions
To secure a Doubles/Triples endorsement in North Carolina, you must first have a Commercial Driver's License (CDL). Next, you'll need to pass the Doubles and Triples Endorsement Test, which covers coupling and uncoupling, inspecting doubles and triples, and handling. The written test can be taken at your local DMV. Study materials are available online or at the DMV.
To obtain a CDL Doubles/Triples license, you must first have a Commercial Driver's License (CDL). Then, study for and pass the Doubles/Triples Endorsement Test, which covers topics such as coupling and uncoupling, inspecting doubles and triples, and handling. You can take the test at your local DMV. The DMV provides study materials.
While North Carolina does not explicitly require specialized experience or training for a CDL Doubles/Triples endorsement, it is highly recommended. The endorsement test covers specific knowledge areas, such as coupling and uncoupling, inspecting doubles and triples, and handling. Many applicants find that training programs or courses help them prepare for the test and handle these types of vehicles safely.
Yes, to acquire a CDL Doubles/Triples endorsement in North Carolina, you must pass a specific Doubles/Triples Endorsement written examination. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and the proper procedures to handle these types of vehicles. It's an additional test to the standard CDL written exam.
In North Carolina, the CDL Doubles/Triples endorsement does not require a specific skills or maneuvers test. However, the written test covers areas like coupling and uncoupling, inspecting doubles and triples, and handling. It's important to understand these concepts thoroughly. Still, you won't need to physically demonstrate these skills for the endorsement.
No, it's not permissible. In North Carolina, like in all states, a CDL Doubles/Triples endorsement is required to legally operate double or triple trailers. Driving these types of vehicles without the proper endorsement can lead to severe penalties, including fines and potential suspension of your commercial driver's license.
You can add the Doubles/Triples endorsement to your existing Commercial Driver's License (CDL) in North Carolina. You don't need to start a new application for a CDL. However, you must pass the Doubles/Triples endorsement written test and pay the required fee to add this endorsement to your current CDL.
Yes, there are certain limitations for drivers with a CDL Doubles/Triples endorsement in North Carolina. Drivers must comply with the state's weight and length restrictions for double and triple trailers. Also, they can only operate vehicles that their specific CDL class allows. Additionally, all federal regulations regarding hours of service and medical fitness apply.
In North Carolina, a double trailer cannot exceed 28.5 feet in length for each trailer and the maximum gross vehicle weight is 80,000 pounds. However, the weight can vary based on the number of axles and axle spacing. For triples, it's usually limited to hauling within 100 air miles of the driver's work reporting location and they cannot exceed 105 feet in total length.
Yes, safety regulations for driving double/triple trailers in North Carolina include conducting pre and post-trip vehicle inspections, maintaining safe following distances, understanding high wind conditions, and proper coupling/uncoupling procedures. Additionally, drivers must comply with all federal regulations such as hours of service and vehicle maintenance. It's crucial to have a valid CDL Doubles/Triples endorsement to operate these vehicles.
