NEC Code Practice Test (60 Questions with Code Explanations) 

Thanks for making this test vid btw... I didn't mean to sound un-grateful for the effort put into making and sharing this sample test.

To start, for clarification I understand these practice questions are based on the 2014 edition of the NEC. Any corrections I am applying here are only based on those books, and not on newer editions of the NEC. Please like to keep this collected information to the top, hoping to help anyone else who was further confused by this sample test. I appreciated the test not only for its intended purpose, but also for the extra work I had to put in to figure out these corrections. It helped me navigate the code alot faster than just answering the questions I think. 34. Reference is Article 250.21(B)(2), not the one mentioned. 38. The article number referenced is correct, 680.7, its specifically 680.7(A) and the quoted article is not that article. Additoinally, the question was worded terribly, and does not mention that it talking about the length of cord. The way the question is worded, its asking the length of of the equipment, not its wiring. 40. Quoted article has nothing to do with the question and answer. The actual article reference is 312.8(1). 41. The quoted article was close(numbers mixed up), but not correct. The correct article is 250.34(A). 48. The quoted article is incorrect. The actual article reference is 210.23(A)(1). 50. The quoted article was close, but not exactly correct to provide the answer. Specifically, it is article 680.26(B)(7) Exc. No. 2. 51. Quoted article is completely correct, though there are two paragraphs to the article, and only the paragraph that doesn't explain the answer was quoted. 52. Quoted article is correct, though specifically the answer is in 240.21(B)(1). 56. The question should have specifically stated that it meant for multiple separately derived systems. Based on the question asked, the answer would be 8 AWG. Specifically for separately derived systems, yes it is 3/0 AWG. 57. The article quoted is close, but does not answer the question. The specific reference article is actually 250.53(G). 59. The word "not" was excluded from the question. It is an important difference to say "rated not less than" vs. "rated less than".

Q10 explanation should be.. Article 100. Definition of Continuous Load. A load where the maximum current is expected to continue for 3 hours or more.

Concise and to the point. Appreciate it.

Love this video learning more than normal

56 under what conditions? This is for "multiple separate derived systems" which would likely be stated in a real test question.

Where I am sure question 37 is used in most exams across the US, it is a terrible question. It is taken completely out of context and here is why that is a problem: 408.54 states "for the purposes of this section". 230.90(A) uses the language "Single pole circuit breakers grouped in accordance with 230.71(B) shall be considered as one protective device." Perhaps there needs to be more context to avoid confusion of where this rule applies.

thanks for making this video ! . it helped me discover and practice my own way of navigating the NEC book.

Ok, so Answer 3 about Article 680.10 is coming from 2011 code and 2014 code book cycles. The information was revised in the 2017 and moved to article 680.11 Underground Wiring code cycle and the verbiage dose not reflect the 2011 or 2014 code cycles. in the 2020 code cycle it has been revised and new sections have been added.

question 40 answer is in article 312.8 (a)(1) 2020 nec

Question 8 is asking about disposal, the code reference is 422.16 (B) (1) not (2)

did not find the answer of question #1 in table 511.3.C

Any other videos on RU-vid with 2020 questions

Question#41 references article 445.20 not 230.54(a) overhead service locations

Where to download the test to practice ?

question #1 where it says 6 in the 511.3 ? i do not see it

Question#50 answer is in 680.26 (B)(7) Fixed Metal parts

The theory of this Practice Exam is well-founded. And some of the answers even match the questions. But not all of them. Some are completely unrelated. Nor can those taking this exam even verify whether the answers are correct. I feel as though everyone who saw this video is now dumber for having experienced this. I award you no points, and may God have mercy on your soul.

I think the thought was there but if your going to give reference numbers to questions at-least get them right

Im worried this test will cause me to second guess some of the items I know are right... Is there an edited make of this vid with the right answers? Although personally I'd say the people smart enough to catch the errors are probably ready for their exams. Just my 2¢

The code reference for Q36 is 440.62-C

Good video

Could someone mention if these answers are conditioned for this current year's exam? 2022... thanks

How many questions you can miss on each of these test.

This video might have been useful a few code cycles ago but only three questions in and two code references have been change already. Would love to an updated test with 2017 NEC questions. Thanks

i need Electrical QA QC Engineer Material

36, explanation is needed. 440.62 (C)

Question 40? There’s no reference in the code sited

We need other videos

Question#48 answer is in 210.23 (A)(1)

Q.34 is 250.21(B)(2)

Muy buena la información para surrallar el libro de codigo

Can a handyman come and fix your electrical problem in Hayward California for Alameda County in California

no wonder i failed 2017 using 2020. testing centers get with the times

Tanks

👍

Question 43 you said the grid supports the wire,, that’s backwards

Note this is from the 2017 NEC

There is so much wrong with this video. The answer is circled in the question following an explanation that’s missing the answer that was circled. Needs revising!

How did you get 6 for the first question all I see is 4… This is a 2023 NEC

First Question Wrong Answer! 2017Nec Requiers 4 cycles of air per hr. Or Positive air presure. Table 511.3(c)

Simply brilliant.

necesito ayuda yo no hablo muy bien el ingles e tomado 2 veces el exxamen y me quedado corto la 1era ves por 9 puntos y la 2da ves x 5 puntos alguien k ya a pasado el examen que me pueda dar unos tips para poder pasarlo se lo agradeceria muchas gracias y bendiciones

for #30 look at 400.12

Right off the bat . The answer to question #1 is NOT "6" , (511.3(C)) It states "4 or more air changes per hour) !!! Nowhere does it say "6" ... And "4" is among your answers to chose from. As well as "6". So, WHY is the answer "6" and NOT "4" ??? 🤔

This was solid. thank you!

I don't mean to be critical but there are quite a few verbal mistakes being said in this video. Question 37 you said 508 when it's 408 and then earlier you said question number 8 on question number 9. Then there was some repeat glitch on a question. Now I have to call into question the entire video and I don't have the brain power for that! lol

Thenks miss for you help

Number one is 4 not six.

42 doesn't quite make sense...

Definitely giving wrong answers.

Idk what y’all are talk about every question I’ve seen matches in my book haven’t made it all the way through this video though

annoying presentation....do you really need to read the answers or the code selection. And like comments below, code references are wrong on occasions but I found the correct code link....I finished the video but not thinking I will use again...

Question number 37 you said 508 and it’s 408

Yall gotta get these explanations right

Question 40s answer had nothing to do with the question,,

52 is not correct...taps may over 25 feet without overcurrent protection provided they comply with B1-B5...

👍🏽

Al lot of these gave the wrong article. But I got an 80% and I’ve only been studying for 2 weeks

A lot of the explanations are wrong

too many "no explanation needed"s...there are plenty of code examples to better explain them.

Man.... I'm over stressed the hell out and I haven't got passed the first dammmm question..... lol. THE ANSWER shows 4 in ther code but she says 6.... wtf.... never mind... i'm done with this shiiit

Awful. Wrong or missing code refrences everywhere

You stole every single question off electricianexamspracticetest.com (absolutely identical) I will be contacting them and letting them know to hit you with a copyright infringement violation.

Definitely disappointed, way too many errors

Q41 ummm i think the explanation is wrong. apples and oranges ya know.

#8 is wrong, it says 3ft to 6.5 ft

680.11 no 680.10 you fail

This is mindless reading of someone's test that has a F on it.

ESPAÑOL!!!

A large number of mistakes on the explanations. Do a better job if you’re going to make a video to teach people about code. Maybe review it before you send it.

To me, question 41about portable generators and the answer given are two different subject matters. If you can not verify your answers, get off U Tube.