Licensed Electrical Contractor Study Guide 2026
Everything you need to pass the Licensed Electrical Contractor exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 Licensed Electrical Contractor Exam Format at a Glance
📚 Licensed Electrical Contractor Topics to Study (65)
✍️ Sample Licensed Electrical Contractor Questions & Answers
1. When calculating dryer load for a multifamily dwelling with 15 dryers, what demand factor applies per NEC Table 220.54?
For 15 dryers, NEC Table 220.54 specifies a demand factor of 47%.
2. What is the minimum required height for overhead service conductors crossing a commercial parking lot subject to truck traffic?
NEC 225.18 requires overhead conductors to maintain at least 18 feet of clearance over areas subject to truck traffic.
3. What is the minimum rating required for any branch circuit that supplies two or more outlets or receptacles per NEC 210.3?
NEC 210.3 establishes that branch circuit ratings shall not be less than the maximum load to be served, with 15 amperes being the minimum standard rating.
4. Per NEC 334.80, what is the maximum ambient temperature rating for standard Type NM cable?
NEC 334.80 states that Type NM cable is rated at 90°C but the ampacity must be based on the 60°C column per the conductor temperature limitation.
5. Which type of insurance is mandatory in most states for an electrical contracting business as soon as it hires its first employee?
Workers' compensation insurance is legally required in most states for businesses with employees. It covers medical expenses, lost wages, and rehabilitation costs for employees who are injured or become ill on the job. While other insurance types are essential, workers' compensation is the specific coverage directly tied to the act of employing staff.
6. For a dwelling unit with 240-volt electric range rated at 12 kW, what is the maximum demand load permitted per NEC Table 220.55 Column C?
NEC Table 220.55 Column C permits an 8 kW maximum demand for a single household range rated up to 12 kW.
🎯 Free Licensed Electrical Contractor Practice Tests
📖 Licensed Electrical Contractor Guides & Articles
- Licensed Electrical Contractor Practice Test PDF (Free Printable 2026)
- Electrical Contractor Exam Preparation: NEC Code, Business Law & Study Plan 2026
- How to Become a Licensed Electrical Contractor: Requirements by State 2026
- LEC Practice Test Video Answers
- How to Prepare for Becoming a Licensed Electrical Contractor: A Complete Guide