300+ Free NC CDL General Knowledge Practice Questions
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Key Facts: NC CDL General Knowledge Exam
80%
Federal CDL knowledge passing threshold
49 CFR 383.135 / FMCSA States page
30+
Federal minimum basic knowledge-test items
FMCSA States page / 49 CFR 383.133
180 days
North Carolina CLP validity
NCDMV Commercial Driver License page
1 renewal
North Carolina CLP renewal allowance
NCDMV Commercial Driver License page
14 days
Minimum CLP holding period before skills test
NCDMV Commercial Driver License page
18 / 21
NC minimum age: CDL/CLP; interstate or hazmat
NCDMV Commercial Driver License page
North Carolina CDL applicants must study the N.C. Commercial Driver License Manual and pass required CDL knowledge tests at an NCDMV driver license office before receiving a CLP. NCDMV lists age 18 as the minimum for CDL/CLP applicants and age 21 for interstate operation or hazardous materials. A North Carolina CLP is valid for 180 days, can be renewed once for another 180 days, and must be held at least 14 days before the skills test. Federal rules require at least 80 percent on CDL knowledge tests.
Sample NC CDL General Knowledge Practice Questions
Try these sample questions to test your NC CDL General Knowledge exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 300+ question experience with AI tutoring.
1Before a North Carolina applicant can receive a commercial learner permit, what testing must they pass?
2What is the minimum age to apply for a North Carolina CDL or CLP for intrastate operation?
3When is a North Carolina CDL applicant generally required to be at least 21 years old?
4After getting a North Carolina commercial learner permit, how long must the applicant hold it before taking the CDL skills test?
5How long is a North Carolina commercial learner permit valid according to NCDMV?
6Which agency administers North Carolina CDL licensing and testing?
7Under FMCSA standards, what score is required to pass a CDL knowledge test?
8What does FMCSA say each basic CDL knowledge test must cover?
9What is the federal minimum number of items for a basic CDL knowledge test?
10A North Carolina CDL applicant is preparing for the knowledge test. Which manual should be the primary study source?
About the NC CDL General Knowledge Exam
The North Carolina CDL General Knowledge test is the base knowledge examination for commercial learner permit and commercial driver license applicants in North Carolina. NCDMV requires CDL applicants to pass the appropriate knowledge tests before CLP issuance, and FMCSA requires basic knowledge testing to cover safe operation regulations, vehicle inspection, basic control, shifting, seeing, communication, speed and space management, night and adverse-weather driving, emergencies, skid recovery, cargo control, railroad crossings, mountain driving, driver wellness, fatigue, alcohol and drug rules, and other general CMV safety topics.
Assessment
FMCSA requires each basic CDL knowledge test to contain at least 30 items and cover the general knowledge areas in 49 CFR 383.111(a). North Carolina administers CDL knowledge tests through NCDMV driver license offices using the N.C. Commercial Driver License Manual as the official preparation source.
Time Limit
No separate official North Carolina General Knowledge time limit was found in the reviewed NCDMV sources.
Passing Score
80% minimum on CDL knowledge tests
Exam Fee
Varies by North Carolina commercial license, permit, endorsement, and transaction; see the official NCDMV Licenses & Fees page. (North Carolina Division of Motor Vehicles (NCDMV))
NC CDL General Knowledge Exam Content Outline
North Carolina CDL Basics
CDL/CLP eligibility, required documents, knowledge testing, 180-day CLP validity, one renewal, 14-day skills-test wait, medical certification, ELDT, CDL classes, endorsements, restrictions, and NCDMV procedures.
Vehicle Inspection
Seven-step inspection, approach check, engine compartment, in-cab checks, brakes, steering, suspension, tires, wheels, lights, mirrors, emergency equipment, cargo securement, and inspection reports.
Basic Control, Shifting, Speed, and Space
Starting, stopping, steering, backing, turning, off-tracking, manual shifting, stopping distance, following distance, traffic gaps, clearances, and route planning.
Seeing, Communication, and Adverse Conditions
Visual search, mirror use, signaling, warning devices, four-way flashers, night driving, fog, rain, hydroplaning, slippery roads, wind, low visibility, and hot-weather checks.
Hazards, Emergencies, Skids, Rail Crossings, and Mountains
Hazard perception, emergency braking, controlled and stab braking, ABS, blowouts, vehicle fires, crash procedures, skids, railroad crossings, downgrades, brake fade, escape ramps, and upgrades.
Cargo, Wellness, Fatigue, Alcohol, and Drugs
Cargo inspection, securement, blocking and bracing, weight balance, driver responsibility, fatigue signs, sleep, illness, BAC standard, alcohol prohibitions, drug rules, implied consent, and the FMCSA Clearinghouse.
How to Pass the NC CDL General Knowledge Exam
What You Need to Know
- Passing score: 80% minimum on CDL knowledge tests
- Assessment: FMCSA requires each basic CDL knowledge test to contain at least 30 items and cover the general knowledge areas in 49 CFR 383.111(a). North Carolina administers CDL knowledge tests through NCDMV driver license offices using the N.C. Commercial Driver License Manual as the official preparation source.
- Time limit: No separate official North Carolina General Knowledge time limit was found in the reviewed NCDMV sources.
- Exam fee: Varies by North Carolina commercial license, permit, endorsement, and transaction; see the official NCDMV Licenses & Fees page.
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
NC CDL General Knowledge Study Tips from Top Performers
Frequently Asked Questions
Who must take the North Carolina CDL General Knowledge test?
North Carolina CDL and CLP applicants take the required CDL knowledge tests for the license class and endorsements they seek. The General Knowledge material is the base CMV safety content, and additional tests may apply for air brakes, combination vehicles, or endorsements.
What score do I need to pass?
FMCSA and 49 CFR 383.135 require at least 80 percent correct on CDL knowledge tests. North Carolina administers the tests through NCDMV driver license offices.
How long is a North Carolina CLP valid?
NCDMV states that a commercial learner permit is valid for 180 days and is eligible for one renewal that is also valid for 180 days.
How long must I hold my CLP before the skills test?
NCDMV states that after obtaining a commercial learner permit, applicants must hold it for at least 14 days before taking the CDL road skills test.
Do I need ELDT in North Carolina?
FMCSA Entry-Level Driver Training applies nationwide to first-time Class A or Class B applicants, Class B-to-Class A upgrades, and first-time school bus, passenger, or hazardous materials endorsement applicants. NCDMV points applicants to schools listed on the federal Training Provider Registry.