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teeg123

Member
Location
Maine
Occupation
Journeyman Electrician
so, I was able to review my last test and found a few question that just are giving me issues I'll try to keep this clean and easy to follow and as always I do appreciate the assistance?

1)
60-amp branch circuit supplying fluorescent lights requires what size conductor?
14awg/12awg/10awg/8awg
ok so in 210.23(E)branch circuits over 50 amp shall supply only nonlighting loads. Where it doesn't mention copper or aluminum I go to copper in 310.16 and see #6.
I go to article 410 and don't find anything referencing a situation like this. What am I missing.
2)Smallest service disconnect for a 1 family with 1 or 2 circuits? option was 100amp,60amp,40amp, and 50amp
for this I go to 230.79 1 family dwelling 230.79(A) one circuit is 15amps. (B) is two circuit and 30amps (C) one family at 100amps (D) is all others not less than 60
I answered it with the 100 amp and that was wrong. would it be (D) since it's not a one or two circuit being defined?
3)1000 amp run in 3 parallel runs of 500 copper what is the max size concrete encased GEC? the option is 4awg,1awg,2/0awg and 3/0awg, but I used table 250.66 over 350 through 600 and it should be 1/0.
4) 5 motors on a crane each motor must by what % of the load 1/3, ¼, 1/5, 1/2, this I actually found but now I can't seem to locate it again I believe its 1/3.
I have a few more but I don't want to abuse you folks good nature.
 
type Z 4/0 conductor in a raceway before derating has an ampacity of which of the following?
197Amp
260Amp
346Amp
411Amp
I went to 310.16 90° 4/0 and see 260 which was wrong? even if I go to 310.18 type Z 4/0 is 332. 310.19 shows 411 for type Z 4/0 aluminum but that's for conductors in free air.
 
30-amp Ac needs what size minimum branch circuit?
where an AC is considered as continuous would you use the 125% making it 30*125%=37.5 making it an 8awg?
 
teeg123 said:
30-amp Ac needs what size minimum branch circuit?
where an AC is considered as continuous would you use the 125% making it 30*125%=37.5 making it an 8awg?
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The minimum circuit ampacity (MCA) is listed on the nameplate of the unit. The nameplate contains all of the relevant information for sizing the conductors and the maximum OCPD. You do not add 25%.
 
infinity said:
The minimum circuit ampacity (MCA) is listed on the nameplate of the unit. The nameplate contains all of the relevant information for sizing the conductors and the maximum OCPD. You do not add 25%.
Click to expand...
but they do not give you any other information on the state test, but what I have given here so didn't know if I was missing something.

I know the question are not the best, but I didn't write them nor can I correct them lolol another good example

just like question #1 in this post?
 
teeg123 said:
but they do not give you any other information on the state test, but what I have given here so didn't know if I was missing something.
Click to expand...
The question is unanswerable. There is nothing that is a "30 amp AC unit".
If I may ask where are you getting these sample test questions?
 
infinity said:
The question is unanswerable. There is nothing that is a "30 amp AC unit".
If I may ask where are you getting these sample test questions?
Click to expand...
unfortunately, this question came from Prov the 3rd party testing company for the state of Maine. When I reviewed my last test, I wrote them down to go over at home.
Once again I do appreciate all the help and information everyone has given.
 
teeg123 said:
unfortunately, this question came from Prov the 3rd party testing company for the state of Maine. When I reviewed my last test, I wrote them down to go over at home.
Once again I do appreciate all the help and information everyone has given.
Click to expand...
I think we all HOPE you are paraphrasing the questions because the virtually all have holes in them, except perhaps the concrete encased electrode question.
 
Even the concrete encased electrode question seems poorly written, as you can run as large of a wire you want - there is no maximum limit. The minimum size would be #4 because code says the biggest you ever need is #4 and 250.66 would indicate much larger than 4 so 4 it is.
 
suemarkp said:
Even the concrete encased electrode question seems poorly written, as you can run as large of a wire you want - there is no maximum limit. The minimum size would be #4 because code says the biggest you ever need is #4 and 250.66 would indicate much larger than 4 so 4 it is.
Click to expand...
Yes poorly formed question. If it wanted to use the word maximum then is should ask for maximum "required".
 
well, I'm retaking the test, so I'll do my best to retain that information. During my review of the test, they only give you an allotted amount of time to review so I did my best.
thanks again to everyone
 
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