2. What are the maximum dimensions of a lighting fixture that may be supported only by the screw shell of the lampholder?

3. Flexible cords shall be so connected to devices and to fittings that _____ will not be transmitted to joints or terminals.

4. What is the maximum weight of a lighting fixture that is supported only by an outlet box?

5. To what portion of a lampholder must the grounded conductor be connected?The base

6. What is the smallest size fixture wire allowed?

7. What is the minimum wire size allowed for pendant conductors supplying mogul-base or medium-base screw-shell lampholders?

8. What is the minimum wire size allowed for pendant conductors supplying intermediate or candelabra-base lampholders?

9. When pendant conductors are longer than a certain length, they must be twisted together. What is this length?

10. Which of the following is an acceptable marking method for the grounding conductor on a grounding-type receptacle?

11. What type fixture wires are required when the wires are mounted on chains supporting a lighting fixture?

12. Flexible cords used for cord-connected showcase lighting must be of what type?

13. Normally, a lighting fixture must not be used as a raceway for circuit conductors except when:

14. Branch circuit conductors installed within 3 inches of a ballast, LED driver, power supply or transformer must have insulation with a temperature rating no lower than:

15. Electric-discharge lighting fixtures must be plainly marked with their electrical rating. This marking must include the voltage, frequency, and:

16. When can luminaires be used as a raceway?

17. Which type of lampholder is approved for installation in either a damp or a wet location?

18. Isolated ground receptacles shall be identified by:

19. What is the maximum incandescent-lamp wattage that may be used on medium base lampholders?

20. What is the minimum spacing required between recessed portions of a non-Type IC rated lighting fixture and combustible materials, other than at the points of support?

21. Incandescent lighting fixtures must be marked to indicate the maximum size lamp permitted. This marking is indicated in:

22. Which of the following is an approved insulating material for lampholders of the screwshell type?

23. Auxiliary lighting equipment, not installed as part of the lighting fixture, must be installed in what type of enclosure?

24. How must a branch circuit supplying a domestic water heater with a capacity of 120 gallons or less be sized?

25. If a 60 gallon water heater has a nameplate rating of 4500 watts and is fed by a 2-wire, 240- volt circuit, what is the minimum size NM cable conductors that can be used?

26. What is the maximum overcurrent protection that can be provided for the circuit in previous question?

27. What is the maximum size infrared heating lamp allowed to be used with medium-base, unswitched porcelain type lampholders?

28. Wall-mounted ovens and counter-mounted cooking units are permitted to be:

29. What is the maximum permitted weight of a ceiling fan mounted directly to an outlet box?

30. When the branch-circuit overcurrent device serves as a disconnecting means for a permanently connected appliance, what is the maximum volt-ampere rating allowed for the appliance?

31. What is the maximum horsepower allowed on permanently connected appliances that use the branch-circuit overcurrent protection means as a disconnect?

32. Where the appliance exceeds the maximum ratings specified in previous question, what is one requirement that will still allow the appliance to be disconnected by the branch-circuit overcurrent protection means?

33. Name another condition that permits permanently connected appliances to utilize the branch-circuit overcurrent protection device as a means of disconnecting the appliance.

34. If an external switch or circuit breaker is used for the disconnecting means for a permanently installed applianc containing a motor over 1/8 horsepower, where must the switch or circuit breaker (disconnecting means) be located?

35. What is the maximum overcurrent protection rating allowed on infrared heating lamps used on commercial or industrial applications?

36. Each electric appliance must be provided with a nameplate giving the identifying name and rating of the appliance in:

37. Under what condition must the frequency be given on the nameplate of an electric appliance?

38. Where electric space heating equipment is supplied by more than one power source, how must the disconnecting means be installed?

39. When the branch-circuit overcurrent protection device is used as the disconnecting means for fixed electric space heating with an integral electric motor, what is the maximum horsepower rating the motor can have?

40. When branch-circuit overcurrent protection is used for motor-driven electric space heating equipment with a motor rated over 1/8 horsepower, name one requirement for the installation to comply with the NEC.

41. What is the maximum overcurrent protection allowed for the protection of resistance-type electric space heating equipment?

42. Each unit of fixed electric space heating equipment must be provided with a nameplate giving the identifying name and the normal rating in:

43. What is the maximum distance (interval) that electric heating cable is to be secured during installation?

44. By definition, what are duct heaters?

45. What is the maximum wattage allowed per linear foot of heating cable embedded in concrete?

46. What is the minimum spacing between runs of concrete embedded heating cable?

47. On what basis must the branch-circuit conductors an overcurrent protective devices be calculated for an electrode-type boiler?

48. How must the ampacity of branch-circuit conductors and overcurrent protective devices be sized for outdoor electric deicing or snow-melting equipment?

49. On cord- and plug-connecting deicing equipment, the plug itself may be used as the disconnecting means provided:

50. What is the maximum wattage permitted for embedded deicing and snow-melting resistance-type heating units?