Boxes are generally required in branch-circuit wiring at ? points. a. conductor splice points b. junction or pull points c. receptacle outlet and switch points d. all of the above

• A. Conductor splice points
• B. Junction or pull points
• C. Receptacle outlet and switch points
• D. All of the above

Answer: (D)

Electrical boxes are needed to enclose and protect conductors wherever they are joined, pulled, or terminated in branch-circuit wiring. At conductor splice points, a box protects the splice and prevents exposure of live conductors. At junction or pull points, a box keeps the wiring contained and provides access for future servicing. At receptacle outlet and switch points, a box provides a mounting enclosure for the device and contains the terminations. Since these are all locations where wiring is spliced, pulled, or terminated, a box is generally required at each of these points. All of the above.