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Question 1 of 40
1. Question
What is the total demand for 11x 5,200 watt dryers using the standard method?
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Question 2 of 40
2. Question
Place the following articles in the correct order from top to bottom.

Overcurrent Protection

Solar Photovoltaic Systems

EMT (Electrical Metallic Tubing)

Mobile Homes
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Question 3 of 40
3. Question
Rod and pipe grounding electrodes shall be at least _____ ft. in length.
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Question 4 of 40
4. Question
Dry type transformers installed indoors and rated 112 1/2 KVA or less shall have a separation of how many inches from combustible material?
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Question 5 of 40
5. Question
Given a scenario where you’re working with rigid metal conduit (RMC), and your conductor size is 12 AWG THWN, how many of these conductors can you fit in a 1/2 inch RMC?
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Question 6 of 40
6. Question
How many Va’s per linear ft. would you calculate for show window lighting?
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Question 7 of 40
7. Question
How many 12 AWG THHN conductors can be installed in a 1/2″ EMT conduit?CorrectIncorrect 
Question 8 of 40
8. Question
How many 12 AWG THHN conductors can be installed in a 3/4 inch EMT conduit?
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Question 9 of 40
9. Question
How many more #4 THWN conductors can you fit inside of a piece of 2.5 inch PVC SCHED 80 pipe that already contains 10x #4 THWN conductors?
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Question 10 of 40
10. Question
How many more #10 THWN conductors can you fit inside of a piece of 1.5 inch PVC SCHED 80 pipe that already contains 6x #10 THWN conductors?
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Question 11 of 40
11. Question
A singlephase transformer has a primary voltage of 240 volts and a primary current of 10 amperes. The transformer’s turns ratio is 4:1. What is the secondary voltage and secondary current of this transformer?
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Question 12 of 40
12. Question
What is the total demand for 9x 4,800 watt dryers using the standard method?
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Question 13 of 40
13. Question
A singlephase transformer with a primary voltage of 240V and a secondary voltage of 120V has a rated primary current of 20A. Calculate the rated secondary current of the transformer.
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Question 14 of 40
14. Question
Bonded neutral generators must provide GFCI protection for all _______________?
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Question 15 of 40
15. Question
How many 4/0 AWG XHHW conductors can be accommodated in a 4″ PVC Schedule 80 conduit?
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Question 16 of 40
16. Question
What is the minimum size copper equipment grounding conductor required for a 200 amp feeder, supplying a detached garage located 50 feet from the main service panel?
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Question 17 of 40
17. Question
What is the secondary voltage of a transformer that has a 4:1 turn ratio and a primary voltage of 480?
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Question 18 of 40
18. Question
How many Vas would you calculate for a single family dwelling in Dallas Texas that has the following appliances:
A 4,200 Va water heater, a 1,000 Va disposal, and a 1,100 Va dishwasher?
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Question 19 of 40
19. Question
Please match the correct articles.
Sort elements
 Code Wide Definitions
 NM (Romex)
 Pools and Spas
 Branch Circuits

Article 100

Article 334

Article 680

Article 210
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Question 20 of 40
20. Question
For a singlephase 240V residential service, what is the minimum size of the grounding electrode conductor (GEC) for a service with 3/0 AWG copper ungrounded conductors?
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Question 21 of 40
21. Question
What is the maximum recommended voltage drop for any 1 circuit?
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Question 22 of 40
22. Question
What is the proper formula for voltage drop?
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Question 23 of 40
23. Question
What is the voltage drop maximum recommendation for an entire system including branch circuits and feeders?
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Question 24 of 40
24. Question
What is the Voltage drop of a 200 amp circuit using 4/0 copper conductors that is 225 ft long on a 120/240 system?
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Question 25 of 40
25. Question
When a branch circuit is servicing sensitive electronic equipment, what is the maximum voltage drop % allowed?
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Question 26 of 40
26. Question
How many 10 AWG THWN2 conductors can be accommodated in a 1″ Intermediate Metal Conduit (IMC)?
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Question 27 of 40
27. Question
Which one of these is the correct way to figure 3 phase voltage for calculation purposes? (This example is the last step before figuring a service calculation.)
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Question 28 of 40
28. Question
How many Va’s do you calculate for each receptacle yoke in a commercial building other than banks and offices?
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Question 29 of 40
29. Question
How many Va’s would you calculate “before demand factors” for a 3 unit apartment building where each unit is 2,000 sq. ft.?
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Question 30 of 40
30. Question
What is the amp draw on a 240v circuit with 20 ohms of resistance?
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Question 31 of 40
31. Question
How many #8 THWN conductors can you fit inside of a piece of 2.5 inch PVC SCHED 80 pipe that already contains 10x #4 THWN conductors?
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Question 32 of 40
32. Question
How many 4 AWG THHN conductors can be installed in a run of 1inch Rigid Metal Conduit (RMC)?
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Question 33 of 40
33. Question
What is the amperage of a 120v circuit, that has a total wattage of 1,200?
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Question 34 of 40
34. Question
What is the current in amperes in a 120v circuit, with 10 ohms of resistance? Remember: EIRCorrectIncorrect 
Question 35 of 40
35. Question
How many 6 AWG THHN conductors can be fitted in a run of 2″ Rigid Metal Conduit (RMC)?
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Question 36 of 40
36. Question
How many 8 AWG THHN conductors can be accommodated in a 11/2″ Electrical Metallic Tubing (EMT)?
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Question 37 of 40
37. Question
What is the resistance of a 120v circuit that has a 5 amp draw on it?
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Question 38 of 40
38. Question
How many RHH 6 AWG conductors can fit into a 1inch PVC Schedule 40 conduit?
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Question 39 of 40
39. Question
How many 2 AWG THW conductors can be fitted in a 21/2″ EMT (Electrical Metallic Tubing)?CorrectIncorrect 
Question 40 of 40
40. Question
What is the resistance on a 120v circuit, with 10 amps of current?
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