Code Hunter

Code Hunter — Multifamily and High-Rises — Installations and Inspections (2020 NEC)

Code Quiz
Code Quiz

To play this game, you need a sharp eye, a quick mind, and a 2020 National Electrical Code book. The 2020 NEC can be accessed for free at
(Fill-in-the-blank questions are looking for the exact word(s) or value(s) used in the NEC.)

1. A multifamily dwelling is a building that contains _________or more dwelling units.


2. All nonlocking, 15- and 20A, 125V through 250V receptacles located in __________ specified in 210.52 and 550.13 must be listed as tamper-resistant.


3. If an exit enclosure (stair tower) is required to be separated from the building, only electrical wiring methods serving equipment permitted by the __________ is permitted within the exit enclosure.


4. Branch circuits for common areas of a multifamily dwelling shall not be supplied from equipment that supplies an individual __________ or tenant space.


5. For elevators, if more than one driving machine’s disconnecting means is supplied from the same __________, the overcurrent devices in the disconnecting means must be selectively coordinated with any supply side overcurrent devices.circuit


6. In multifamily dwellings, Type NM Cable is permitted in buildings that are permitted to be type(s) __________ construction.


7. Unless otherwise permitted, wiring for __________ loads shall be kept independent from all other wiring and equipment.


8. The voltage at the load terminals of a fire pump controller shall not drop more than __________ percent below the voltage rating of the connected motor when operating at 115 percent of the full-load current of the motor.


9. Openings around electrical penetrations into or through fire-resistance-rated __________ shall be firestopped using approved methods.


10. Equipment intended to interrupt current at fault levels shall have a(n) __________ rating, at nominal voltage, that is at least equal to the available fault current at the line terminals of the equipment.


11. True or False? Equipment enclosures for overcurrent devices utilizing tested series combinations must be marked to indicate that identified replacement components are required.


Christel Hunter and Randy Hunter
Christel Hunter is vice president of standards for Cerro Wire. Chris serves as President for the Southern Nevada Chapter of IAEI. Chris also serves on NEC CMP-6 and CMP-13, NFPA 921, NFPA 70B, NFPA 73 and UL STPs 62, 83, 719 and 4703. Chris is a Professional Safety and Health Officer, Certified Standards Professional, Master Electrician, and LEED Accredited Professional. Randy Hunter is an instructor and consultant specializing in electrical code and installations, and co-owner of Hunter Technical Services. He holds ten inspections certifications from IAEI and ICC. He has been a master electrician since 1988.