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26111-11 Residential Electrical Services

1. A grounding electrode conductor must be ________.

Question 1 of 35

2. When a noncombustible wall finish is used, an outlet box may be recessed ________.

Question 2 of 35

3. Which type of cable with a corrugated sheath has a maximum bend radius of 7 times the cable diameter?

Question 3 of 35

4. The minimum clearance of service drop conductors over a residential driveway is reduced to 12 feet when the voltage is limited to ________.

Question 4 of 35

5. Which of the following is the minimum NEC® lighting load requirement for the home in the figure above?

Question 5 of 35

6. Which of the following must be supported at intervals of 6 feet or less?

Question 6 of 35

7. To control a device from three locations, a four-way switch must be used with which of the following?

Question 7 of 35

8. When used as an outside service-entrance conductor, which of the following must be secured every 30 inches?

Question 8 of 35

9. According to NEC Section 220.53 , loads for which of the following appliances shall be permissible to apply a demand factor of 75%?

Question 9 of 35

10. Listed FMC may be used as an equipment grounding conductor if the circuit conductors are protected by overcurrent devices rated at ________.

Question 10 of 35

11. The section of the NEC® that lists the requirements for installing service disconnecting means is ________.

Question 11 of 35

12. Which of the following circuits require a minimum of 20A of overcurrent protection?

Question 12 of 35

13. To control stairway lighting, a wall switch is required at each level when how many risers separate floor levels?

Question 13 of 35

14. The NEC® allows the load calculation for the grounded neutral conductor supplying electric ranges and dryers to have a demand factor of ________.

Question 14 of 35

15. Conductors used for electric heating units must be sized for what percentage of the heater's nameplate rating?

Question 15 of 35

16. Which section of the NEC® covers the installation of pools and spas?

Question 16 of 35

17. An electric heat pump is a type of HVAC system that ________.

Question 17 of 35

18. In a residential pool area, receptacles ________.

Question 18 of 35

19. Traveler conductors are used to connect two ________.

Question 19 of 35

20. A feeder is used to connect ________.

Question 20 of 35

21. Any outlet that supplies power to a hot tub shall be ________.

Question 21 of 35

22. How many square feet of livable space are in the home in the figure above?

Question 22 of 35

23. Romex® is a trade name for ________.

Question 23 of 35

24. Which section of the NEC® covers equipment grounding and equipment grounding conductors?

Question 24 of 35

25. Which of the following is an NEC®-approved grounding electrode?

Question 25 of 35

26. Which of the following will detect a current imbalance as low as 4 milliamps?

Question 26 of 35

27. One of the advantages of electric heat is that ________.

Question 27 of 35

28. The conductors that extend from the panelboard to various outlets are called ________.

Question 28 of 35

29. Power to the entire residence is shut off at the main service disconnect located ________.

Question 29 of 35

30. Exposed noncurrent-carrying metal parts of fixed equipment must be grounded if the equipment operates with any terminal over ________.

Question 30 of 35

31. Which of the following locations at dwelling units require GFCI protection?

Question 31 of 35

32. According to the NEC®, which of the following is required for the small appliance loads in each kitchen area?

Question 32 of 35

33. Which of the following is required to carry the lighting load for the residence in the figure above?

Question 33 of 35

34. A GFCI sensor will trip when the ________.

Question 34 of 35

35. Cables routed through bored holes in framing members must maintain a distance from the nearest edge of not less than ________.

Question 35 of 35


 

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