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06-29-2009, 03:20 PM
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#161
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Senior Member
Join Date: Oct 2008
Location: SE Wisconsin
Posts: 244
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1. 51/64 inches at 10 feet
2. A
3. 4
4. 26 cases and 17 bottles
5. 0.000000000023%
6. 5
7. Yes
8. 6 (extra credit: 1)
9. 8
10. 0 (Trick question, they already are)
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06-29-2009, 03:28 PM
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#162
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Senior Member
Join Date: Oct 2008
Location: SE Wisconsin
Posts: 244
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Oops. Forgot to ask one. (kinda like Dennis. Miss his avatar from that other place tho)
What is the maximum size time delay fuse you could use for short circuit/ground fault protection for a 50 Hp, 480 V, 3 phase 3 wire motor?
A. 100 amperes
2. 110 amperes
3. 125 amperes
4. 150 amperes
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06-29-2009, 05:09 PM
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#163
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Wish I was in the water
Join Date: Aug 2007
Location: St. Cloud, Fl
Posts: 581
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Quote:
Originally Posted by ralpha494
Oops. Forgot to ask one. (kinda like Dennis. Miss his avatar from that other place tho)
What is the maximum size time delay fuse you could use for short circuit/ground fault protection for a 50 Hp, 480 V, 3 phase 3 wire motor?
A. 100 amperes
2. 110 amperes
3. 125 amperes
4. 150 amperes
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3. 125 amp fuse calculation comes to 113 amps and 240.6 has standard ratings, so 125A fuse. allowed to go up one for branch circuit, if it is the feeder you down to the 110A fuse.
__________________
If you're gonna be stupid, you better be tough. 
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06-29-2009, 05:16 PM
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#164
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Wish I was in the water
Join Date: Aug 2007
Location: St. Cloud, Fl
Posts: 581
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A switchboard shall have a minimum clearance of _____ft. from a combustible ceiling, unless a noncombustible shield is provided between the switchboard and the ceiling.
A. 3
B. 4
C. 5
D. 6
__________________
If you're gonna be stupid, you better be tough.
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06-29-2009, 05:21 PM
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#165
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Senior Member
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,847
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Quote:
Originally Posted by Greg
A switchboard shall have a minimum clearance of _____ft. from a combustible ceiling, unless a noncombustible shield is provided between the switchboard and the ceiling.
A. 3
B. 4
C. 5
D. 6
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I will go with "A" from art.408.18(A). The question is not worded quite right. It should say "For other than totally enclosed switchboard....
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06-29-2009, 05:31 PM
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#166
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Wish I was in the water
Join Date: Aug 2007
Location: St. Cloud, Fl
Posts: 581
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you are correct on both accounts
__________________
If you're gonna be stupid, you better be tough.
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06-29-2009, 07:46 PM
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#167
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Senior Member
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,847
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Simplify this equation (x-a)^2 * (x-b)^2 * (x-c)^2 *....(x-z)^2
No Nec article required. 
If you solve it send me a pm with the answer. Let's see how many mathematicians we have out there.
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06-30-2009, 06:03 AM
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#168
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Senior Member
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,847
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We have a winner --- Ray Cyr
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06-30-2009, 08:41 AM
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#169
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Senior Member
Join Date: Oct 2008
Location: SE Wisconsin
Posts: 244
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Nice avatar, Dennis. Thanx. If only we could find somebody with a penguin slapping another penguin into the water.
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06-30-2009, 04:59 PM
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#170
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Senior Member
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,847
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Quote:
Originally Posted by ralpha494
Nice avatar, Dennis. Thanx. If only we could find somebody with a penguin slapping another penguin into the water.
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I really like that one. It is one of my favorites. Ralph also got the answer correct.
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07-02-2009, 07:17 AM
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#171
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Senior Member
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,847
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A closet is 4' wide by 2' deep with a 12" shelf on the back wall. Door is centered in the space and is 24" wide. What is the longest length fluorescent strip one can install over the door or on the ceiling?
A: 12"
B: 18"
C: 24"
D: 36"
E: 48"
F: None of the above
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07-02-2009, 02:24 PM
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#172
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Registered Member
Join Date: Nov 2007
Posts: 2,575
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F fffffffffffffffffffff
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07-02-2009, 03:14 PM
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#173
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Senior Member
Join Date: Oct 2008
Location: SE Wisconsin
Posts: 244
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I'm going to say E depending on style of luminaire, cuz some are longer than 48", in which case D. Final answer. 410.16 (C)(2) and Law of two pieces of matter cannot occupy the same space at the same time.
Is this another trick question like which is longer a full stick of EMT, IMC, rigid aluminum, or rigid steel?
A. EMT
B. IMC
C. Rigid aluminum
D. Rigid steel
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07-02-2009, 04:46 PM
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#174
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Licensed Pro
Join Date: Jan 2007
Location: Rahway, NJ
Posts: 3,891
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Quote:
Originally Posted by ralpha494
I'm going to say E depending on style of luminaire, cuz some are longer than 48", in which case D. Final answer. 410.16 (C)(2) and Law of two pieces of matter cannot occupy the same space at the same time.
Is this another trick question like which is longer a full stick of EMT, IMC, rigid aluminum, or rigid steel?
A. EMT
B. IMC
C. Rigid aluminum
D. Rigid steel
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That's a crazy question and I think it was on my exam actually.
Is the answer D, Rigid?
--------------------------
Residential appliance outlets shall be installed within _______ inches of the intended location for the appliance.
A) 12"
B) 24"
C) 48"
D) 72"
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07-02-2009, 05:13 PM
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#175
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Senior Member
Join Date: Oct 2008
Location: SE Wisconsin
Posts: 244
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Quote:
Originally Posted by ralpha494
I'm going to say E depending on style of luminaire, cuz some are longer than 48", in which case D. Final answer. 410.16 (C)(2) and Law of two pieces of matter cannot occupy the same space at the same time.
Is this another trick question like which is longer a full stick of EMT, IMC, rigid aluminum, or rigid steel?
A. EMT
B. IMC
C. Rigid aluminum
D. Rigid steel
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The answer is not D for my question.
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07-02-2009, 05:19 PM
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#176
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Senior Member
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,847
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Quote:
Originally Posted by LawnGuyLandSparky
F fffffffffffffffffffff
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What is your reasoning? I am curious
If the closet is 4' wide and 2 feet deep then we must allow 12" minimum for a shelf. Even tho there are no shelves installed to the left or right of the door we must assume an 12" shelf. Thus 12" for each shelf is 24" leaving us with 24". Now we have to allow 6" for a fluorescent light on each side. That is another 12", thus we have 12" left over.
"A" is the correct choice. Art. 410.2 and 410.16
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07-02-2009, 05:24 PM
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#177
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Senior Member
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,847
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Quote:
Originally Posted by Magnettica
Residential appliance outlets shall be installed within _______ inches of the intended location for the appliance.
A) 12"
B) 24"
C) 48"
D) 72"
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D is the answer. Art. 210.50(C)
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07-02-2009, 05:26 PM
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#178
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Senior Member
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,847
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Quote:
Originally Posted by ralpha494
Is this another trick question like which is longer a full stick of EMT, IMC, rigid aluminum, or rigid steel?
A. EMT
B. IMC
C. Rigid aluminum
D. Rigid steel
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No it's not a trick question and I will say "A" for your question.
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07-02-2009, 05:45 PM
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#179
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Senior Member
Join Date: Oct 2008
Location: SE Wisconsin
Posts: 244
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It was a trick question. I didn't even notice 410.2. Jumped at 410.16, thinking I found it.
I don't buy the 6" on each side of the luminaire tho. IMHO, if there isn't a shelf on the side you don't have to stay away from it. So I'm saying a 24" would be legal. (Unless the inspector wouldn't budge.) I change my answer to C.
Do I have any life lines left?
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07-02-2009, 05:55 PM
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#180
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Senior Member
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,847
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Quote:
Originally Posted by ralpha494
It was a trick question. I didn't even notice 410.2. Jumped at 410.16, thinking I found it.
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No, it was tricky to find perhaps but not a trick question.
Quote:
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I don't buy the 6" on each side of the luminaire tho. IMHO, if there isn't a shelf on the side you don't have to stay away from it.
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Here is the definition which I know you have read. Where does it say the shelf must be in place. Suppose no shelf is installed at the back of the closet. Are you saying that I can install a light back there? I don't think so.
Quote:
410.2 Definitions.
Closet Storage Space. The volume bounded by the sides and back closet walls and planes extending from the closet floor vertically to a height of 1.8 m (6 ft) or to the highest clothes-hanging rod and parallel to the walls at a horizontal distance of 600 mm (24 in.) from the sides and back of the closet walls, respectively, and continuing vertically to the closet ceiling parallel to the walls at a horizontal distance of 300 mm (12 in.) or the width of the shelf, whichever is greater; for a closet that permits access to both sides of a hanging rod, this space includes the volume below the highest rod extending 300 mm (12 in.) on either side of the rod on a plane horizontal to the floor extending the entire length of the rod. See Figure 410.2.
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Quote:
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Do I have any life lines left?
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Nope, you changed your mind too many times.
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