Idaho Limited Electrical Elevator Installer Practice Exam
Free Practice Exam
Test your knowledge with 10 questions from our pool of 20 free questions.
- 10 questions per attempt
- 30 minute time limit
- Unlimited attempts
- A new mix each time
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Full Practice Exam
Complete exam simulation matching the real PSI test format.
- 60 questions (same as real exam)
- 180 minute time limit
- 7 topic areas covered
- 315 questions in pool
- Detailed explanations
Texts preferred · 9am–9pm Central
Idaho Limited Electrical Elevator Installer Practice Exam Guide
What's on the exam
Questions per topic, out of 60This practice exam follows the official content outline for the Idaho Limited Electrical Elevator Installer exam: 2017 National Electrical Code, NFPA – Introduction, 2017 National Electrical Code, NFPA – Chapter 1, 2017 National Electrical Code, NFPA – Chapter 2, 2017 National Electrical Code, NFPA – Chapter 3, 2017 National Electrical Code, NFPA – Chapter 4, 2017 National Electrical Code, NFPA – Chapter 6, 2017 National Electrical Code, NFPA Calculations.
You have two ways to practice. The free practice exam gives you 10 questions per attempt, and you can retake it as often as you like. The full practice exam gives you 60 questions on a 3 hours clock, with a new draw from our question bank every attempt.
2017 National Electrical Code, NFPA – Introduction 4 items
Our study plan for this topic: Purpose and scope of the NEC (practical safeguarding vs. design specification); Installations covered and not covered under NEC scope (90.2); Code arrangement and chapter hierarchy (Chapters 1–9 and informative annexes); Authority having jurisdiction (AHJ) enforcement powers and special permission; Mandatory vs. permissive rules and explanatory material (shall/shall not vs. shall be permitted); Equipment examination, listing, and approval for safety (90.7); Wiring planning for future expansion and circuit limitations in enclosures (90.8); Units of measurement: SI and inch-pound dual system and compliance (90.9).
2017 National Electrical Code, NFPA – Chapter 1 10 items
Our study plan for this topic: Key NEC Article 100 definitions (approved, listed, labeled, identified, AHJ); Branch circuit types and definitions (general-purpose, individual, multiwire, appliance); Grounding and bonding terminology (grounded conductor, EGC, grounding electrode, bonding jumper types); Equipment approval, examination criteria, and listing requirements (Article 110.3); Working space and clearance requirements for electrical equipment (110.26 dimensions and conditions); Guarding of live parts and enclosure type selection (110.27, Table 110.28); Electrical connections, conductor materials, temperature limitations, and torque requirements (110.14); Arc-flash hazard warning markings and available fault current field marking requirements (110.16, 110.24).
2017 National Electrical Code, NFPA – Chapter 2 10 items
Our study plan for this topic: Grounding and bonding requirements for grounded and ungrounded AC systems (Article 250); Grounding electrode system types, installation, and sizing (Article 250, Part III); Equipment grounding conductor types, sizing, and identification (Article 250, Parts VI–VII); Bonding of services, piping systems, and structural metal (Article 250, Part V); Branch-circuit ratings, conductor ampacity, and overcurrent protection (Article 210); GFCI and AFCI protection requirements for branch circuits (Article 210); Branch-circuit, feeder, and service load calculations including demand factors (Article 220); Feeder conductor sizing, overcurrent protection, and identification (Article 215).
2017 National Electrical Code, NFPA – Chapter 3 10 items
Our study plan for this topic: Conductor ampacity tables and adjustment factors (Article 310); Conductor insulation types, temperature ratings, and permitted uses by location; Wiring methods installation requirements: securing, supporting, and bending (RMC, EMT, FMC, LFMC, LFNC, PVC); Underground installation requirements and minimum cover depths (Table 300.5); Box and conduit body fill calculations and sizing (Article 314); Cable tray systems: uses permitted, fill requirements, and ampacity (Article 392); Conductors in parallel: minimum size and installation requirements; Cabinets, cutout boxes, and enclosures: wire-bending space and conductor deflection (Article 312).
2017 National Electrical Code, NFPA – Chapter 4 10 items
Our study plan for this topic: Motor branch-circuit conductor sizing and ampacity requirements; Motor overload protection devices and trip current ratings; Motor branch-circuit short-circuit and ground-fault protective device ratings and settings; Motor controller ratings, types, and marking requirements; Motor disconnecting means types, location, and ampere rating requirements; Motor control circuit overcurrent protection and electrical arrangement; Transformer overcurrent protection and installation requirements by type; Switchboard, switchgear, and panelboard overcurrent protection, grounding, and marking.
2017 National Electrical Code, NFPA – Chapter 6 15 items
Our study plan for this topic: Disconnecting means requirements for elevators, escalators, and platform lifts; Wiring methods in hoistways, machine rooms, and on elevator cars; Conductor insulation types and minimum sizes for traveling cables and hoistway wiring; Grounding and bonding requirements for electric elevators and escalators; GFCI protection requirements for receptacles in pits, hoistways, and machine rooms; Voltage limitations for power, lighting, and heating circuits; Overcurrent protection for elevator motors and feeder selective coordination; Emergency and standby power system connections for elevators.
2017 National Electrical Code, NFPA Calculations 1 item
Our study plan for this topic: Motor branch-circuit conductor ampacity calculations (Article 430, 125% rule); Motor branch-circuit short-circuit and ground-fault protective device sizing using Table 430.52; Full-load current determination from NEC Tables 430.247–430.250; Feeder conductor ampacity for multiple motors (Article 430.24 summation method); Elevator feeder and branch-circuit conductor sizing using Article 620.13 and Table 430.22(E); Feeder demand factors for elevator installations (Table 620.14); Motor overload protection sizing percentages (Article 430.32); Conduit fill calculations using Chapter 9 Tables 1, 4, and 5.
Sample 1 — 2017 National Electrical Code, NFPA – Chapter 6
Question: On escalators and moving walks, where must the disconnecting means for the main power supply conductors be installed?
- A. In the nearest electrical equipment room
- B. Within sight of the driving machine
- C. In the space where the controller is located
- D. At the upper landing, outside the wellway
Correct Answer: C
Per NEC 2017, Section 620.51(C)(3), on escalators and moving walks the disconnecting means shall be installed in the space where the controller is located. (Within-sight-of-the-motor-controller rules apply to elevators without generator field control and to platform lifts/stairway chairlifts.)
Reference: NEC 2017 Section 620.51(C)(3)
Sample 2 — 2017 National Electrical Code, NFPA – Chapter 1
Question: You are installing a new panelboard in a residential garage. The homeowner has stacked storage boxes in front of the planned installation location. What is the minimum working space width required in front of the panelboard?
- A. 24 inches (610 mm)
- B. 30 inches (762 mm)
- C. 36 inches (914 mm)
- D. 42 inches (1067 mm)
Correct Answer: B
Per NEC 110.26(A)(2), the width of the working space in front of electrical equipment shall not be less than 30 inches (762 mm). Additionally, per NEC 110.26(B), working space required by this section shall not be used for storage. The homeowner's boxes would need to be removed.
Reference: NEC 2017 Section 110.26(A) and (B)
Sample 3 — 2017 National Electrical Code, NFPA – Chapter 2
Question: Circuits exceeding 277 volts to ground and not exceeding 600 volts between conductors are permitted to supply the auxiliary equipment of electric-discharge lamps in permanently installed luminaires used to illuminate outdoor areas such as parking lots, provided the luminaires are mounted on poles or similar structures at a height of not less than:
- A. 15 ft
- B. 22 ft
- C. 20 ft
- D. 18 ft
Correct Answer: B
NEC 2017, 210.6(D)(1)(a) permits such circuits where the luminaires are mounted not less than 6.7 m (22 ft) on poles or similar structures for outdoor area illumination; 5.5 m (18 ft) applies to other structures such as tunnels under 210.6(D)(1)(b).
Reference: NEC 2017 Section 210.6(D)(1)(a)
Treat your first attempt as a checkup, not a verdict. After every attempt, the results page breaks your score down by outline topic, so you can see which topics need work. Compare your score with the real exam's passing score, a minimum score of 70, and keep practicing until you pass consistently.
- Answer what you know first. Go through every question once, answer the ones you know, and bookmark the rest. Our practice exams let you bookmark and come back.
- Come back to your bookmarks. Work them out on your second pass.
- Watch your pace. The real exam works out to about 3 minutes per question.
- Look up every miss. After each attempt, find each missed question's reference in your book and read the section.
| Questions | 60 questions |
| Time limit | 3 hours |
| Passing score | a minimum score of 70 |
| Books in the exam room | Open book |
| Exam fee | $75 |
- Your score is shown on screen at the end of the exam and a score report is provided, with a diagnostic report of strengths and weaknesses if you fail.
- If you do not pass, you may retake the exam as many times as needed, paying an examination fee for each attempt.
Source: Examination Scheduling Procedures / Examination Guide (Idaho PSI Candidate Bulletin), Effective 7/9/2026. Check the bulletin before test day: fees and rules can change.