Question 8037 of 731 · Texas Journeyman Electrician Exam
The largest motor on a feeder has a 100 A branch-circuit breaker. The other motors have FLCs of 20 A and 10 A. What is the maximum standard feeder breaker size?
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 8037
- B: 125 A
Explanation
Section 430.62(A) gives 100 A plus 20 A plus 10 A, which is 130 A. The feeder device may not exceed this value, so the next lower standard size of 125 A is the maximum.
More questions: Motors, HVAC, Generators and Transformers
- 8038When may several motors be connected to a single branch circuit?
- 8039Which nameplate value is used to size branch-circuit conductors for a packaged air conditioning unit?
- 8040An air conditioning unit nameplate shows a maximum overcurrent protection (MOCP) of 40 A. What breaker is permitted?
- 8041Where must the disconnecting means for an outdoor air conditioning condenser be located?
- 8043A rooftop HVAC unit requires a service receptacle. What is the maximum distance from the equipment?
- 8044What other location rule applies to the HVAC service receptacle?