Free Practice Test
Mississippi Master Electrician (Commercial Electrical Contractor)
Try 10 questions weighted like the real PSI Master Electrician exam — services and branch circuits, conductors, grounding, raceways, special occupancies, motors, overcurrent protection and OSHA safety — on the 2020 NEC. You get a score for each area and a cited explanation for every answer.
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Topic Breakdown
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Codebook Explanations
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The Mississippi Master Electrician trade exam is 80 questions in 3 hours, open book, and you need 70%. It qualifies a company for the State Board of Contractors’ commercial Electrical classification, alongside a separate Law and Business Management exam.
Related reading

Mississippi Master Electrician Exam Day: Scheduling, Books, Timing and Retakes
What to expect at PSI's Mississippi Master Electrician exam: registering after the Board makes you eligible, the Jackson test center and out-of-state sites, which books and tabs are allowed, 80 questions in 3 hours, scores and unlimited retakes for 6 months.

What's on the Mississippi Master Electrician Exam? PSI's 14 Areas and 80 Questions
PSI's Mississippi Master Electrician exam for the commercial Electrical classification: 80 open-book questions in 3 hours on the 2020 NEC, 70% to pass. The 14 content areas, where each sits in the code, and how to study them.

Mississippi Electrical Contractor License: Master Electrician Exam, Requirements and Fees
How to get Mississippi's commercial Electrical classification from the State Board of Contractors: the qualifying party, the $400 application, $50,000 net worth, the 80-question Master Electrician exam (or NASCLA), Law and Business Management, annual renewal and exam waivers.