No hanging luminaire parts can be located within a zone measured 8 ft vertically from the top of the bathtub rim and 8 ft vertically from the top of the shower stall threshold. Which description matches this zone?

• A. 3 5
• B. 3 8
• C. 8 8
• D. 5 8

Answer: (C)

The concept tested is how luminaire placement zones around a bathtub/shower are described by two vertical measurements—one from the top of the bathtub rim and one from the top of the shower threshold. Since the given zone is 8 ft vertically from the top of the bathtub rim and 8 ft vertically from the top of the shower threshold, both measurements are 8 ft. That means the zone is described by the pair 8 and 8, which matches the description for this scenario. The other options mix different distances, which would describe zones where one reference point has a different height, not the same 8 ft for both.