Question 5014 of 731 · Texas Journeyman Electrician Exam
Which of the following is NOT permitted to be used as a grounding electrode?
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 5014
- B: Metal underground gas piping
Explanation
Metal underground gas piping systems are specifically prohibited as grounding electrodes. The other items are recognized electrodes. See 250.52(B).
More questions: Grounding and Bonding
- 5015The portion of a grounding electrode conductor that is the sole connection to one or more ground rods is not required to be larger than
- 5016The portion of a GEC that is the sole connection to a concrete-encased electrode is not required to be larger than
- 5017The portion of a GEC that is the sole connection to a ground ring is not required to be larger than
- 5018A service has 2/0 AWG copper ungrounded conductors. What is the minimum copper GEC to a metal water pipe electrode?
- 5019A service has 4/0 AWG copper ungrounded conductors. What is the minimum copper GEC to the building steel electrode?
- 5020A service has 500 kcmil copper ungrounded conductors. What is the minimum copper GEC to a water pipe electrode?