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1. Which of the following outdoor 15 or 20 ampere, 125-volt, single-phase receptacles at a dwelling unit are not required to be GFCI protected? A receptacle installed:

on the wall at a height of 7 ft above the ground level

on a second-floor balcony

on a dedicated branch circuit to supply snow-melting equipment at the roof.

in an open carport.

Question 1 of 25

2. What is the minimum clearance that must be maintained between electrical metallic tubing (EMT) and the surface of the roof decking when it is installed under metal-corrugated sheet roof decking?

1-1/2 inch

1-1/4 inch

1-1/6 inch

1-1/3 inch

Question 2 of 25

3. For a branch-circuit where lighting outlets or general-use receptacles are also supplied, what is the maximum percentage of the rating that may not be exceeded by a cord-and- attachment-plug-connected room air- conditioner?

70%

60%

50%

40%

Question 3 of 25

4. In each attached garage and in each detached garage with electric power, at least one receptacle outlet shall be installed in each vehicle bay and not more than ______.

3'6"

6'6"

5'6"

4'6"

Question 4 of 25

5. Which of the following are not permitted for use as a grounding electrode?

Concrete encased 4 awg 20' in length.

Metal underground gas pipe 10' in length

Ground Ring 20' in length

Metal underground water pipe 10' in length

Question 5 of 25

6. Where a branch circuit supplies continuous loads or any combination of continuous and non-continuous, the rating of the over-current device shall not be less than the noncontinuous load plus _______ of the continuous load.

125 percent

120 percent

130 percent

135 percent

Question 6 of 25

7. For a one-family dwelling, the feeder disconnecting means shall have a rating of not less than _________ amperes, 3-wire.

200

100

80

90

Question 7 of 25

8. A mogul-based lamp holder installed on a 30-ampere branch circuit shall have a rating of at least ____ watts.

250

660

300

750

Question 8 of 25

9. The load for household electric clothes dryers in a dwelling unit(s) shall be ________ watts (volts-amperes) or the nameplate rating, whichever is larger for each dryer served.

1000

4000

6000

5000

Question 9 of 25

10. If each unit in a 12 unit condo had an 8kW electric range, applying the optional method of calculation for multifamily dwellings, what would the calculated demand load be on the ungrounded service entrance conductors for the electric ranges?

31.48kW

39.36kW

49.2kW

96kW

Question 10 of 25

11. An insulated grounded conductor larger then _______ shall be permitted to be marked with white tape at the time of installation.

8 AWG

6 AWG

2 AWG

4 AWG

Question 11 of 25

12. An electrode encased by at least 2" of concrete shall be permitted to be 20' of base copper conductor not smaller than _________ AWG.

4

8

6

10

Question 12 of 25

13. Fixtures wires shall not be smaller than ________ AWG.

12

16

14

18

Question 13 of 25

14. The lighting demand factor in hospitals for the _________ VA is 20%.

Remainder over 50,000VA

Remainder over 30,0000

First 50,000VA

First 30,000VA

Question 14 of 25

15. If a panel is straight rated 480v what type of rating(s) are the breakers required to have?

277/480V and 480V

480V

277/480V

Question 15 of 25

16. Raceways must not be used to support Class 2 or 3 cables.

False

True

Question 16 of 25

17. In walls or ceilings with a surface of non-combustible material, boxes shall be installed so that the front edge of the box will not be set back of the finished surface more than ____ inch.

1/5

1/3

1/4

1/2

Question 17 of 25

18. When using rod and pipe electrodes, where rock bottom is encountered, he electrode shall be driven at an oblique angle not to exceed ________ from the vertical.

30 degrees

35 degrees

40 degrees

45 degrees

Question 18 of 25

19. What is the minimum vertical clearance from final grade for open overhead service conductors up to 1000 volts over public driveways?

20 feet

18 feet

17 feet

15 feet

Question 19 of 25

20. Where more than one, rod and pipe or plate, electrode are used each electrode of one grounding system shall not be less than _______ from any electrode of another grounding system.

8 feet

7 feet

6 feet

5 feet

Question 20 of 25

21. A required 125-volt, 15- and 20-ampere receptacles in dwelling units shall be installed in any wall space _______ feet or more in width.

3

5

4

2

Question 21 of 25

22. Snap switches must not be ganged or grouped in enclosures with other receptacles, snap switches, or similar devices, unless they are placed so that voltage is _______volts or less between adjacent devices, or unless placed in enclosures with securely installed, identified barriers between adjacent devices.

300

301

299

298

Question 22 of 25

23. For 1000 volts, nominal or less what is the minimum size copper conductor for spans up to 50'?

6AWG

4AWG

8AWG

10AWG

Question 23 of 25

24. Where conduits enter a switchboard or floor -standing panelboard at the bottom, the conduit including their end fittings, shall not rise more than _____ inches above the bottom of the enclosure.

5

2

4

3

Question 24 of 25

25. Appliance receptacle outlets installed in a dwelling unit for specific appliances shall be installed within ____ ft of the intended location of the appliance.

4

8

6

3

Question 25 of 25

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