NC · CDL Class B

North Carolina Class B CDL Practice Questions and License Guide

This North Carolina Class B CDL practice page is built around the 100 questions currently saved in the bank. The mixed set covers general knowledge, air brakes, hazardous materials, tank vehicles, passenger transport, and school bus material. Combination-vehicle and doubles/triples modules are not included because those privileges are associated with Class A combination operation rather than the routine Class B path. The remaining specialty modules are conditional study coverage, not a claim that every Class B applicant must take every endorsement test. NCDMV ties required knowledge tests, endorsements, restrictions, and the skills test to the vehicle and operation you intend to drive. First-time Class B applicants also need to account for federal Entry-Level Driver Training rules. Use the questions to review the topics actually present in this bank, then use the guide below to separate the core Class B path from conditional endorsement, age, medical, training, and vehicle-specific requirements.

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Every test draws only from the North Carolina CDL Class B question bank.

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LICENSING GUIDE

What to know before you test

Use this overview together with the latest official guidance linked below.

Confirm that Class B matches the heavy single vehicle you plan to operate

North Carolina requires Commercial Class B for a single vehicle with a GVWR of 26,001 pounds or more, including such a vehicle towing another vehicle with a GVWR not exceeding 10,000 pounds. NCDMV requires CDL applicants to be at least 18 and to already possess a valid Class A, B, or C driver license that is not suspended, disqualified, or revoked. The exact knowledge tests and endorsements depend on the vehicle and operation, so air-brake, tank, hazardous-materials, passenger, and school-bus material in this bank is conditional study coverage rather than one required test package for every Class B applicant.

Prepare the CLP application, commerce certification, and medical status

NCDMV lists identity, Social Security number, residency or legal-presence evidence, and North Carolina liability-insurance proof among the documents used for a commercial learner permit application. CDL and CLP holders also self-certify the type of commercial operation they perform. Non-excepted interstate and non-excepted intrastate drivers must maintain certified medical status. Since June 28, 2025, North Carolina no longer accepts paper Medical Examiner Certificates directly from commercial drivers; the medical examiner must transmit the certificate electronically through the FMCSA National Registry system.

Move from knowledge testing and the CLP to the Class B skills test

NCDMV requires the applicable CDL knowledge tests to obtain the commercial learner permit. The North Carolina Commercial Driver License Manual states that 80 percent of the questions on each knowledge test must be answered correctly to pass. After the CLP is issued, the applicant must hold it for at least 14 days before taking the skills test. First-time Class B applicants subject to Entry-Level Driver Training must complete the required theory and behind-the-wheel training with a registered provider before the Class B skills test. The skills test uses a representative vehicle for the class sought.

Use specialty modules only when the endorsement or vehicle makes them relevant

This saved bank uses an editorial distribution of 38 general-knowledge questions, 13 air-brake questions, 13 hazardous-materials questions, and 12 questions each for tank vehicles, passenger vehicles, and school buses. That distribution is not NCDMV's official test blueprint. North Carolina requires additional knowledge tests or endorsements for operations such as hazardous materials, tank vehicles, passenger vehicles, and school buses, while air-brake equipment can affect testing and license restrictions. First-time H, P, or S endorsement applicants may have separate federal ELDT obligations. Study the specialty modules that match the vehicle, cargo, equipment, and privileges you actually need.

REQUIREMENTS OVERVIEW

North Carolina CDL Class B requirements

Requirements depend on the applicant and can change. Verify each item with the cited agency.

age

North Carolina Class B CDL applicants, including applicants age 18 through 20

NCDMV requires a CDL applicant to be at least 18 years old. Drivers must be at least 21 for operations in interstate commerce or for a hazardous materials endorsement.

documents

First-time North Carolina commercial learner permit and Class B CDL applicants

Applicants must possess a valid Class A, B, or C driver license that is not suspended, disqualified, or revoked. For the commercial learner permit, NCDMV lists proof of age and identity, Social Security number, North Carolina residency for U.S. citizens, legal presence for non-citizens, and liability-insurance coverage among the required documents.

tests

First-time North Carolina Class B CDL applicants and applicants seeking covered endorsements

Applicants must pass the knowledge tests required for the class, equipment, and endorsements, obtain a commercial learner permit, hold the permit for at least 14 days, complete applicable Entry-Level Driver Training before the Class B skills test, and pass the CDL skills test in a representative vehicle. First-time H, P, and S endorsement applicants have additional ELDT rules.

passing

North Carolina CDL applicants taking required commercial knowledge and skills tests

The North Carolina Commercial Driver License Manual states that 80 percent of the questions on each CDL knowledge test must be answered correctly to pass. Applicants must also pass the required CDL skills test before receiving the CDL.

applicability

North Carolina Class B applicants and Class B holders studying endorsement-specific material

Commercial Class B applies to a single vehicle with a GVWR of 26,001 pounds or more, including such a vehicle towing another vehicle whose GVWR does not exceed 10,000 pounds. Endorsements and restrictions depend on the vehicle, equipment, cargo, and operation, so the specialty modules in this mixed practice bank do not all apply to every Class B applicant.

OFFICIAL REFERENCES

Sources for this guide

Open the current source before relying on licensing details.

Official NCDMV: Commercial Driver LicenseCDL requirements; commercial learner permit; Class A definition; endorsements; restrictions; medical certificationOpen source ↗ North Carolina Commercial Driver License ManualSection 1 - Introduction: classes, knowledge tests, endorsements, restrictions, medical certification, CLP and skills-test rulesOpen source ↗ Entry-Level Driver Training (ELDT) | FMCSAFederal ELDT applicability for first-time Class B and covered endorsementsOpen source ↗