question on 210.11 c 1-3

[patsfan51]

hello,
i am preparing to take my mass. exam. I have some test questions and looking to see if i came about the answer correctly.
Q: Min. number of 20A circuits required for a single dwelling with a 2000 sqft floor area?
A: my answer is 4 -- 2 per section c-1; 1 per section c-2; 1 per section c-3

Is this correct? Is there another way to go about this answer--> 2000 sqft x 3va?

thanks in advance

 

[celtic]

Q: Min. number of 20A circuits required for a single dwelling with a 2000 sqft floor area?
A: my answer is 4 --
2 per section c-1;
1 per section c-2;
1 per section c-3

Your answer only covers:
Kitchen
Bath
Laundry

What about the rest of the house?

Is there another way to go about this answer--> 2000 sqft x 3va?

You're onto something...where did the 3va come from?

 

[augie47]

Your answer only covers:
Kitchen
Bath
Laundry

What about the rest of the house?



You're onto something...where did the 3va come from?

What else in the house would require a 20 amp circuit ?
(assuming kitchen = kitchen & dining, etc)

 

[celtic]

What else in the house would require a 20 amp circuit ?
(assuming kitchen = kitchen & dining, etc)

We'll have to let the OP tell us.

 

[patsfan51]

as far as rest of house, that is where i am getting confused.
the answer options for the question are:
1) 2
2) 3
3) 4
4) 5

i know its not option 1 or 2 since 210.11 C says 4 are required.
I am just need a push to find the extra one to make 5 if that is the case.

as far as 2000 sqft x 3 va --> 6000va / 120v --> 50A/20A (#of cir) --> 3 circuits. this can not be the case because of 210.11 C or I am missing something here as well.
thanks for your help

 

[celtic]

as far as rest of house, that is where i am getting confused.

That was exactly what I figured :smile:

Thanks for not letting the cat out of the bag augie

the answer options for the question are:
1) 2
2) 3
3) 4
4) 5

i know its not option 1 or 2 since 210.11 C says 4 are required.
I am just need a push to find the extra one to make 5 if that is the case.

as far as 2000 sqft x 3 va --> 6000va / 120v --> 50A/20A (#of cir) --> 3 circuits. this can not be the case because of 210.11 C or I am missing something here as well.
thanks for your help

As augie started to say...
What else in the house would require a 20 amp circuit ?

The answer is: nothing.

You were right with the original "guess" of 4.

If the question asked:
Min. number of circuits required for a single dwelling with a 2000 sqft floor area?

You would start with the 4 you originally arrived at, then 2000 sq.ft x 3 va = 6000
...and work it down from there.

BUT...

Your question asked for min REQUIRED 20A ckts.

So yea, I messed with your head a bit.
But now you will remember :smile:
Min number of ckts vs. min number of 20A ckts.

 

[patsfan51]

Thanks for your help celtic and augie. This forum should be a great resource while prepping for the exam. I think i will be hanging around here for awhile.

 

[celtic]

Thanks for your help celtic and augie. This forum should be a great resource while prepping for the exam. I think i will be hanging around here for awhile.

You're welcome....and I think your decision is a good choice :smile:

 

[jumper]

Messed with my head too.

 

[celtic]

Messed with my head too.

LOL

I think I got a bunch of people with that

For me, it's silly "lessons" like that, that seem to stick with me.
I can just see patsfan51 taking the test...a similar question being asked...and he instantly sees "Murdock" :smile:

 

[jumper]

LOL

I think I got a bunch of people with that

For me, it's silly "lessons" like that, that seem to stick with me.
I can just see patsfan51 taking the test...a similar question being asked...and he instantly sees "Murdock" :smile:

Jumper is going to see Murdock also when he takes his test. Jumper will see him twice if there is a traffic light question.

 

[augie47]

Thanks for not letting the cat out of the bag augie

sorry celtic, sometimes your avitar prevents me from knowing that your answer might be a "training session"

I'll try to remember not to question your judgement....

 

[celtic]

Jumper is going to see Murdock also when he takes his test. Jumper will see him twice if there is a traffic light question.

LMAO .....Good luck Jumper!

 

[jumper]

sorry celtic, sometimes your avitar prevents me from knowing that your answer might be a "training session"

I'll try to remember not to question your judgement....

I could be wrong, but I think that is what is what he is trying to do. Nice trap.

 

[augie47]

I could be wrong, but I think that is what is what he is trying to do. Nice trap.

agree thus the apology

 

[celtic]

sorry celtic, sometimes your avitar prevents me from knowing that your answer might be a "training session"

I'll try to remember not to question your judgement....

Thanks Augie....


I think the general consensus when asked a question by a new user [no offense patsfan] is to ask them for the answer they got - and how/why? - before we all chime in with "correct answers".


....although questioning my judgment is not completely out of line as sometimes I am out of line :grin:

 

[celtic]

I could be wrong, but I think that is what is what he is trying to do. Nice trap.

I was hard up for a chess game....that question just screamed TRAP to me.

 

[jumper]

I was hard up for a chess game....that question just screamed TRAP to me.

pawn to king four.

 

[celtic]

pawn to king four.

PWNED



LMAO :grin:

 

[patsfan51]

yes i think i shall remember that one now.
now to change the question a little since this played with me trying to figure out the answer---

When to use 220.5 (B) -- fraction of an ampere less than .5, such fractions shall be permitted to be dropped.

Do I only drop the fraction when doing load calculations?

Do I keep the fraction when finding number of circuits? ex. min number of 15amp lighting circuits in 2000sqft dwelling? my answer comes to 3.3 circuits. I round this up to four circuits.

Yes?