Question 11012 of 1003 · California General Electrician Exam
For emergency systems, what is required of the overcurrent protective devices?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 11012
- B: They must be selectively coordinated
Explanation
Emergency system OCPDs must be selectively coordinated with all supply-side OCPDs. This means a fault opens only the device closest to it and keeps the rest of the emergency system energized.
More questions: Emergency, Limited Energy and Communications
- 11013In assembly occupancies for more than 1000 persons or buildings above 75 ft in height, emergency feeder circuit wiring must have what protection?
- 11014In NEC 2020 and 2023, which article covers fire-resistive cable systems?
- 11016Egress lighting required by a building code to illuminate exit paths during a power outage is part of which system?
- 11017A code-required system supplies sewage disposal pumps and smoke removal equipment during outages, with less urgency than egress lighting. Which system is this?
- 11018A portable generator is connected to a dwelling's premises wiring as an optional standby source. What is required?
- 11019In NEC 2020 and 2023, which article covers energy management systems?