Electrical

Electrical Questions? Ask an Electrician Online.

Electrical

# 00680701

Customer Question
00680701
Submitted: 2 years ago.Category: Electrical
Customer reply replied 2 years ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer reply replied 2 years ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.Practical Exercise
When you feel confident that you have mastered the material in this practical exercise, complete
for this examination as soon as you complete it. Do not wait until another examination is ready.
Questions 1–20: Select the one best answer to each question.
1. Figure A-1 is a one-line diagram representing a service entrance. The black box with the letter C in
the center of it represents panel C. How is it possible for you to determine from this diagram if panel C
is a single-phase panel or a three-phase panel?
A. Because the conductors feeding panel C are installed in 2 ½-inch conduit.
B. The letter C is a standard code that identifies it as single-phase.
C. The four #3/0 conductors feeding it most probably identify it as three-phase, but looking at a
three-line diagram of the same system would tell me for sure if it’s single-phase or three-phase.
D. All time clocks are single-phase, so it must be single-phase since it has a time clock connected to
it.
17
EXAMINATION NUMBER:
00680701
Whichever method you use in submitting your exam
answers to the school, you must use the number above.
For the quickest test results, go to
http://www.takeexamsonline.com
2. Using the one-line diagram in Figure A-1, how many #12 wires would you install for the roof-top
receptacle circuit, and how did you determine this quantity?
A. I would install three #12 conductors to it because the line representing the circuit has three slash
marks (///) on it.
B. I would install three #12 conductors to it because the receptacle is rated at 120 volts.
C. I would install four #12 conductors to it because all roof-top receptacles have four #12 wires connected
to them.
D. I can’t determine how many #12 conductors to install to the rooftop receptacle circuit by looking at
this one-line diagram.
3. The one-line diagram in Figure A-1 shows that beside the conduit to panel C, the electrician must also
install an empty 2 ½-inch conduit to the meter socket. Based on what you’ve learned about service
entrance equipment, what will this conduit be used for?
A. Another panel that will be connected at a later time
B. Ancillary equipment conductors such as telephone and cable television
C. The service conductors from the utility company
D. A structural support for the meter socket
4. An electrician is given the panel schedule shown in Figure A-2. The electrician must collect all the
breakers needed for the listed branch circuits. A main breaker isn’t required at this time. By examining
the panel schedule, determine the pole and amperage combination for each of the breakers and
chose the correct list of breakers from the choices listed below.
A. 24 single-pole 20 amp, 21 single-pole 70 amp, 3 single-pole 225 amp breakers
B. 24 single-pole 20 amp, 7 three-pole 70 amp, 1 three-pole 225 amp breakers
C. 24 single-pole 20 amp, 12 single-pole 70 amp, 3 three-pole 70 amp, 1 three-pole 225 amp breakers
D. 8 three-pole 20 amp, 7 three-pole 70 amp, 1 three-pole 225 amp breakers
18 Examination
C
#12
METER SOCKET
2 1/2" EMPTY CONDUIT
INSTALL WITH GROUNDING
BUSHING 4 - #3/0 CU THHN CONDUCTORS
IN 2-1/2" CONDUIT
INTERMATIC NO. A367 TIME CLOCK
TO ROOF-TOP RECEPTACLE
3- #12 AWG IN 3/4" CONDUIT
FIGURE A-1—Use this diagram to answer Questions 1–3.
Examination 19
SALES AREA LIGHTING 3.7
ABC
11020E
SALES AREA LIGHTING 3.3 31020E
SALES AREA LIGHTING
SALES AREA LIGHTING
SALES AREA LIGHTING
SALES AREA LIGHTING
SALES AREA LIGHTING
SALES AREA LIGHTING
3.3 51020E
3.3 71020E
3.3 91020E
3.3 111020
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
8
8
10
4
4
4
4
4
4
4
4
4
4
4
4
20
20
20
20
20
20
70
70
70
70
70
70
70
70
70
70
70
70
E
E
E
E
T
T
T
X
X
X
X
X
X
X
X
X
X
X
X
LUMBER CANOPY LIGHTING
SPARE
SPARE
SPARE
RTU #1
RTU #2
RTU #3
RTU # *****
SPACE ONLY
SPACE ONLY
SPACE ONLY
SPACE ONLY
SPACE ONLY
SPACE ONLY
SPACE ONLY
SPACE ONLY
SPACE ONLY
SPACE ONLY
SPACE ONLY
SPACE ONLY
THESE SIX (6) SPACES
ARE RESERVED FOR SUB-FEED KIT
TOTAL CONN. LOAD 404.2 KVA, 486.2 AMPERE CODE BREAKER
WIRE SIZE
CIRCUIT #
ABC
10 20 E
10 20 E
10 20 E
10 20 E
10 20 E
10 20
8
10
4/0
4/0
4/0
4
4
4
4
4
4
4
4
4
20
20
20
20
20
20
225
225
225
70
70
70
70
70
70
70
70
70
E
E
E
T
T
T
T
X
X
X
X
X
X
X
X
X
X
X
X
ABC
2 SALES AREA LIGHTING
4 SALES AREA LIGHTING
SALES AREA LIGHTING
SALES AREA LIGHTING
SALES AREA LIGHTING
SALES AREA LIGHTING
SALES AREA LIGHTING
6
8
10
12
14
16
18
20
22
24
26
28
30
32
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
LUMBER CANOPY LIGHTING
SPARE
SPARE
Customer reply replied 2 years ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer reply replied 2 years ago
Customer reply replied 2 years ago
10/14/2015
Electrician: educatortech,
replied 2 years ago
Category: Electrical
Satisfied Customers: 5,240
Verified

Hello, my name is Greg.

I see this might be time sensitive.

Do you still need this answered?

educatortech
Category: Electrical
Satisfied Customers: 5,240
5,240 Satisfied Customers

educatortech is online now

A new question is answered every 9 seconds

• Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
• Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

## What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

## Meet the Experts:

Mike

Master Electrician

1,425 satisfied customers

Licensed Master Electrician - OnQ Certified Data Voice Audio Video Installer

Jason

Service Technician

3,940 satisfied customers

Over 20 years of experience in all types of installations, troubleshooting, and repairs.

Mike G.

Master Electrician

7,603 satisfied customers

Proven Professional 48 years Experience

Kevin

3,715 satisfied customers

30 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC Technician License

AssuredElectrical

Master Electrician

3,264 satisfied customers

electrifier

Master Electrician

1,458 satisfied customers

Electrical contractor and electrical inspector for over 24 years with phone and networking expertise

Rich

Master Electrician

1,115 satisfied customers

Over 35 years residential, commercial, industrial wiring, install, troubleshoot, service, maintain

< Previous | Next >

Related Electrical Questions
The Master Electrician Grounding between meter base and main
This is for Mike the Master Electrician Grounding between meter base and main circuit panel via metal conduit requires grounding pipe as well as neutral / and panel bonds. If using PVC, no need to gro… read more
Mike G.
Master Electrician
7,603 satisfied customers
Can I add a 90 elbow to the main conduit so that I can raise
can I add a 90 elbow to the main conduit so that I can raise that conduit the conduit is running vertical and i need some height under the conduit … read more
Kevin
Diploma
3,715 satisfied customers
I have a dedicated 10 amp romex line in conduit, going to a
I have a dedicated 10 amp romex line in conduit, going to a direct wired garbage disposer under my kitchen sink. I want to connect this line up to a single gang outlet box to make exchanging the dispo… read more
Sam I
Electrician
B.S.
374 satisfied customers
I am running 3 circuits inside of pvc conduit. 220v 30a
I am running 3 circuits inside of pvc conduit.220v 30a water heater 220v 15a ac 120v 20a receptaclecan I use 1 shared 10awg ground wire for all circuits?… read more
Mike G.
Master Electrician
7,603 satisfied customers
Need help determining wire size, wire type, and conduit size
Need help determining wire size, wire type, and conduit size for 200amp panel with a 200 amp subpanel. Here is a list of my questions: http://mnjustin.com/diagram.jpg… read more
Mike G.
Master Electrician
7,603 satisfied customers
How much to install 100' of electrical line in a conduit if
how much to install 100' of electrical line in a conduit if the trench is already dug. Include the cost of wiring and adding a 50 Amp Circuit Breaker … read more
Kevin
Diploma
3,715 satisfied customers
What size wire is needed to run underground in conduit to a
What size wire is needed to run underground in conduit to a garage about 60 feet from the main connection at the power pole? This would be connected to a subpanel in the garage. … read more
Kevin
Diploma
3,715 satisfied customers
Do you need to remove existing conduit and or conductors if
Do you need to remove existing conduit and or conductors if they are being abandoned and not being used? … read more
Mike G.
Master Electrician
7,603 satisfied customers
Can I use the conduit that leads into the panel box by
Can I use the conduit that leads into the panel box by adding a second pair of wires to be connected to another circuit breaker? Easier to do than setting up another separate conduit attachment? I kno… read more
Kevin
Diploma
3,715 satisfied customers
Can we use 2" BX armor conduit thru an attic instead of emt
can we use 2" BX armor conduit thru an attic instead of emt conduit for 1/0 gauge svc lines? 15' in length … read more
George Smith
274 satisfied customers
I need to install about 200 ft of conduits on a warehouse
Hi Kevin... I need to install about 200 ft of conduits on a warehouse ceiling. The conduit needs to be suspended about 3 feet from the roof because of the large beams. Currently there are two rows of … read more
Kevin
Diploma
3,715 satisfied customers
What minimum trade size IMC Intermediate Metal Conduit is
What minimum trade size IMC Intermediate Metal Conduit is required for qty 35(6AWG type THHN wires)? … read more
Mike G.
Master Electrician
7,603 satisfied customers
Can you run electrical conduit in same trench as water
Can you run electrical conduit in same trench as water lines? … read more
Electrical Contractor
564 satisfied customers
My question involves a 1" conduit 20' with 7 pairs of #14
my question involves a 1" conduit 20' with 7 pairs of #14 sis/xhhw rated Insulted (14 conductors) terminated at 120 v shunt trip units 7 breakers to fire alarm relays. … read more
Steve
Chief Engineer
9 satisfied customers
I have a quad outlet in metal conduit that I want to put a
I have a quad outlet in metal conduit that I want to put a plug on so I can plug it in to a wall outlet. It has a green wire, yellow wire and white wire. Can you tell me which goes to which on the plu… read more
Kevin
Diploma
3,715 satisfied customers
I have a black, and wire in mtl. conduit. It appears that
I have a black, white and green wire in mtl. conduit. It appears that the green wire is the hot wire. Do I hook this to the side of the plug with the brass screws. Which wire is likely to be the groun… read more
Kevin
Diploma
3,715 satisfied customers
The house inside conduit has 5 red black and a bare copper,
the house inside conduit has 5 red black white green and a bare copper, I know to connect the colors together. what is the common wire and I think it gets wired to the bare ground but not for sure. I … read more
Kevin
Diploma
3,715 satisfied customers
Cost to run 15000 linear foot of fiber in conduit, 3 months,
cost to run 15000 linear foot of fiber in conduit JA: I'll do all I can to help. How long have you been dealing with this? Customer: 3 months JA: Do you plan on doing the work yourself? Customer: yes … read more
Andy B
Technical
5 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less