Question 11001 of 731 · Texas Journeyman Electrician Exam
Upon failure of the normal supply, emergency system power must be available within what time?
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 11001
- C: 10 seconds
Explanation
Emergency systems must have power available within the time required for the application, but not more than 10 seconds. These systems serve life safety loads such as egress lighting.
More questions: Emergency, Limited Energy and Communications
- 11002Upon failure of the normal supply, a legally required standby system must have power available within what time?
- 11003Which type of alternate power system has no NEC-specified maximum time for power to be restored?
- 11004How must emergency system wiring generally be installed in relation to other wiring?
- 11005What type of transfer equipment is required for an emergency system?
- 11009How must emergency lighting systems be designed with respect to lamp failure?
- 11010Where on-site emergency power sources are installed, a sign must be placed where?