Arizona electrician exam: prep + the real requirements

25 questions · Arizona practice set. Pick an answer for each, then check. Explanations cite the rule each question tests.

1. 1. Metal underground water pipe used as an electrode must be in contact with earth for at least 10 ft and:

   Nothing moreMust be supplemented by another electrode, with the connection made within the first 5 ft of entry (non-industrial)Be plastic-linedCarry a fuse

2. 2. Direct-buried UF cable for a 120V, 20A GFCI-protected residential branch circuit requires a minimum cover of:

   6 in12 in18 in24 in

3. 3. NM cable must be secured at intervals not exceeding ___ and within ___ of every box:

   6 ft / 24 in4.5 ft / 12 in3 ft / 8 in10 ft / 36 in

4. 4. EMT must be supported at least every ___ and within ___ of each box or termination:

   10 ft / 3 ft6 ft / 12 in8 ft / 2 ft4.5 ft / 12 in

5. 5. Where 4 AWG or larger conductors enter an enclosure, the entry must be protected by:

   A locknutAn insulating bushing or insulated-throat fittingDuct sealA reducing washer

6. 6. An isolated-ground receptacle is identified by:

   A green faceAn orange triangle on its face; its EGC runs insulated back toward the source but the box/system still gets a normal EGCA red dotThe letters WR

7. 7. The minimum service disconnecting means rating for a one-family dwelling is:

   60A100A150A200A

8. 8. The general lighting load for a dwelling is calculated at:

   1 VA per sq ft3 VA per sq ft of floor area5 VA per sq ft10 VA

9. 9. A household electric clothes dryer is calculated at not less than:

   3,000 VA5,000 VA or the nameplate, whichever is larger7,500 VAThe breaker rating

10. 10. Motor running overload protection for a motor with a service factor of 1.15 is set at a maximum of:

    100% of nameplate FLA115%125% of nameplate full-load current175%

11. 11. Primary-only overcurrent protection for a 600V-class transformer rated more than 9A is set at a maximum of:

    100%125% of primary current (next size up allowed)250%300%

12. 12. Receptacles in dwelling units must generally be:

    Hospital gradeTamper-resistant (TR), with limited exceptions (e.g., above 5.5 ft, behind fixed appliances)GFCI type everywhere20A

13. 13. The equipotential bonding grid around a permanently installed pool uses solid copper not smaller than:

    #10#8#6#4

14. 14. On construction sites, GFCI protection is required for:

    NothingAll 125V, 15/20/30A receptacle outlets used by personnel for temporary power (or an assured equipment grounding conductor program where allowed)Only outdoor outletsCord reels

15. 15. Conductors of different systems (e.g., 120/240V and Class 2 low voltage) in the same enclosure are:

    Always permittedRestricted — Class 2/3 circuits are separated from power conductors except where specifically permitted with barriers/spacingRequiredOnly allowed underground

16. 16. In the NEC, the word 'shall' indicates:

    A recommendationA mandatory requirementAn explanatory noteA future requirement

17. 17. A branch circuit is defined as the circuit conductors between:

    The service point and the meterThe final overcurrent device protecting the circuit and the outlet(s)The transformer and the panelAny two panels

18. 18. The minimum width of working space in front of electrical equipment is:

    The width of the equipment or 30 in, whichever is greaterExactly 30 in always36 in alwaysThe door swing

19. 19. Service equipment in other than dwelling units must be legibly field-marked with:

    The electrician's license numberThe maximum available fault current and the date the calculation was performedThe utility's phone numberThe wire brand

20. 20. The grounded (neutral) conductor in sizes 6 AWG or smaller must be identified by:

    Green insulationA continuous white or gray outer finish (or three white/gray stripes)Black with white tape at terminationsBare copper

21. 21. Circuit breakers and switches must be installed so the center of the operating handle, at its highest position, is not more than:

    5 ft 6 in above the floor6 ft 7 in above the floor or working platform7 ftNo limit

22. 22. 'Listed' equipment is equipment:

    On the AHJ's preference listIncluded in a list published by a qualified testing laboratory (e.g., an NRTL) whose evaluation says it meets designated standardsMade in the USASold by a licensed distributor

23. 23. A 'wet location' includes:

    Only outdoor areas exposed to rainInstallations underground, in concrete slabs in direct contact with the earth, and locations subject to saturation — plus unprotected outdoor locationsBathrooms onlyAny basement

24. 24. The dwelling laundry area requires:

    No dedicated circuitAt least one 20A branch circuit for laundry receptacle(s), with no other outletsA 30A circuitTwo 15A circuits

25. 25. In dwelling habitable rooms, wall receptacles must be spaced so no point along the floor line (measured horizontally) is more than:

    4 ft from a receptacle6 ft from a receptacle (12 ft between receptacles)8 ft from a receptacle10 ft