Idaho Low Voltage Practice study guide
Idaho Low Voltage Practice · Work through your exam, one topic at a time.
The Idaho Low Voltage Practice exam is a study resource for candidates preparing for Idaho's limited electrical (low voltage) licensing pathway. In Idaho, electrical work is regulated at the state level by the Idaho Division of Occupational and Professional Licenses, and low voltage work such as communications, alarm, control and signaling circuits falls under a limited license rather than a full journeyman or master electrician license. The Idaho Low Voltage Practice study guide has 10 sections and about 3,002 words.
01National Electrical Code (NEC) general requirements and definitions
This domain covers NEC Article 90, Article 100, and Article 110. It asks whether an installation is code-minimum, whether equipment is approved and listed, and whether the installer followed listing instructions.
305 words, about 2 min02Wiring methods and materials
Wiring-methods questions test Chapter 3 plus Article 725/800 cable requirements. You must choose a method suitable for the location, support and protect it, and transition correctly at boxes and equipment.
309 words, about 2 min03Low voltage and communications circuits
Low-voltage and communications circuits are covered by Article 725 (Class 1/2/3), Article 760 (fire alarm), Article 770 (optical fiber), Article 800 (communications), Article 820 (CATV), Article 830 (network-powered broadband), and Article 840 (premises-powered broadband). The exam tests circuit class, power source, cable substitution, separation, and grounding.
331 words, about 2 min04Grounding and bonding
Grounding and bonding questions test Article 250 plus the communications grounding articles (800.100, 810.21, 820.93, 830.93). Know the difference: grounding connects to earth; bonding connects metal parts to create an equipotential path.
313 words, about 2 min05Overcurrent protection and conductor sizing
Overcurrent and conductor-sizing questions test Article 240, Article 310, and the small-conductor rules. You must select an overcurrent device that protects the conductor after ampacity adjustment and correction, while respecting terminal ratings.
290 words, about 1 min06Boxes, enclosures, and raceways
Boxes, enclosures, and raceways are tested through Article 314 and Chapter 9. You need to size boxes for conductors and devices, size pull boxes for conductors, and fill raceways without exceeding permitted percentages.
321 words, about 2 min07Special occupancies and special equipment
Special occupancies and equipment questions cover Articles 500-516 (hazardous locations), 517 (health care), 518-520 (assembly), 525, 547, 550, 590, 680 (pools), 690 (solar), 695 (fire pumps), 700 (emergency), 705 (interconnected), and low-voltage Articles 725, 760, 770. The exam tests location classification and listed equipment.
294 words, about 1 min08Idaho electrical contractor and license law
Idaho law questions test the licensing framework in Idaho Code Title 54, Chapter 10 and rules administered by the Idaho Division of Occupational and Professional Licenses (DOPL). Know who may contract, who may perform work, and when local permits and inspections apply.
280 words, about 1 min09Safety, tools, and job-site practices
Safety, tools, and job-site practice questions test NFPA 70E, OSHA electrical safety, lockout/tagout, PPE, meter selection, and common job-site hazards. The exam expects you to choose the safe procedure, not just the fast one.
275 words, about 1 min10Electrical theory and calculations
Electrical-theory questions test Ohm law, series and parallel circuits, power, AC impedance, and low-voltage voltage drop. You need to calculate with consistent units and recognize when a nominal rating is not the actual operating point.
284 words, about 1 min