Each of the following conditions is necessary for safe lighting except one. Which one is the exception?
A) Adequate bulb wattage
B) Appropriate filter color
C) Safe distance from working area
D) Black darkroom walls
D
Explanation: A) If the darkroom is light tight, black or dark walls are not necessary.
B) If the darkroom is light tight, black or dark walls are not necessary.
C) If the darkroom is light tight, black or dark walls are not necessary.
D) If the darkroom is light tight, black or dark walls are not necessary.
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