Recent Master's exam question

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sparky723

sparky723

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Haskell,Tx
Where using overload relays with a motor; they

a) Shall be in the same raceway
b) Are permitted in the same raceway
c) Shall be run in seperate raceways
d) Shall be of the same color

This question has appeared 3x for me and I haven't found the verbatim answer. Please help. Exact code location would be GREAT!! Thanks, sparky723
 
its B

its B

B is the most correct answer the fun part is . Its incomplete answer. Why because you can run conductors in the same raceway as long as the conductors rated for the same voltage of the branch circuit conductors .

I did not recall the code article ???. Sorry my satellite is down .
 
How much heat will a thermo overload create in the gutter? This is a trick question and really doesn't belong on a test. It may be the one that makes a pass or fail score.
 
Auxillery Gutters: Article 366.12 uses not permitted, (1) to enclose overcurrent devices or similar equipment!!!!!

Can't use that approch.
 
kingpb said:
The answer is "B" based on 300.3(C)(1) and 300.3(C)(2)(c).
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What's that got to do with overload relays in raceway???

300.3(C) in its entirety is regarding conductors... it even says so in the title :grin:

...but somehow I'm getting the impression you are assuming the word "they" is referring to conductors. Would you be so kind as to clue us in on how you are making that stretch?
 
Smart $ said:
What's that got to do with overload relays in raceway???

300.3(C) in its entirety is regarding conductors... it even says so in the title :grin:

...but somehow I'm getting the impression you are assuming the word "they" is referring to conductors. Would you be so kind as to clue us in on how you are making that stretch?
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I see these sections this way also.
 
1. There is no direct reference in the NEC to the OP, this has been validated by many posters. Therefore, to the testing agency that posed the question, the answer must be inferred.

2. Article 300 is "Wiring Methods" not "Conductors". The OP question involves OL's in raceway, which would fall under Wiring Methods and therefore it is implied that it would fall under Article 300, especially since it does not seem to fall under another Article.

3. Practicality of installation says that you cannot physically put OL's in a raceway due to the inherent nature of their design. I therefore made the assumption that the question was really referring to the conductors connected to the OL's and then 300.3 makes sense especially since it applies to both 600V and below, and above 600V.

Optional reason for "B"
When writing specifications the word "shall" inherently implies that you must do it that way. However, motors can have OL built in, in which case you would not have external OL, and shall does not apply. The only answer where shall is not used is "B".

If my answer isn't correct, I don't care, it was a stupid test question anyway:D
 
This question is not as bad as 3 of the questions in the Calif exam. They were all three typos in the answers and so was NO correct answer. I knew about the incorrect questions from a class I took so I passed. This was around 3 years ago and I hope they corrected them by now. The worst part is that THEY KNEW about the wrong answers on the test but did nothing about it. WHen I inquired about why I was told that the State approved the questions and only the State could remove them.
 
kingpb said:
1. There is no direct reference in the NEC to the OP, this has been validated by many posters. Therefore, to the testing agency that posed the question, the answer must be inferred.

2. Article 300 is "Wiring Methods" not "Conductors". The OP question involves OL's in raceway, which would fall under Wiring Methods and therefore it is implied that it would fall under Article 300, especially since it does not seem to fall under another Article.

3. Practicality of installation says that you cannot physically put OL's in a raceway due to the inherent nature of their design. I therefore made the assumption that the question was really referring to the conductors connected to the OL's and then 300.3 makes sense especially since it applies to both 600V and below, and above 600V.

Optional reason for "B"
When writing specifications the word "shall" inherently implies that you must do it that way. However, motors can have OL built in, in which case you would not have external OL, and shall does not apply. The only answer where shall is not used is "B".

If my answer isn't correct, I don't care, it was a stupid test question anyway:D
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For that bit of deductive reasoning, I nominate you for Mike Holt Forum's NEC Sleuth of the Year award... :grin:
 
I thought from the beginning that this was a miss worded question. It only makes sense if they are talking about the over load conductors.
 
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