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Examen
Lighting Exam With 100% Correct Answers 2025
fluorescent fixtures can be used as raceways and ballasts are a source of heat, what is the minimum rating of conductors used when the fluorescent fixtures are mounted ? correct answers600V/90degrees (c) 
 
Which HID lamp has the quickest re-strike time ? correct answersHigh Pressure Sodium 
 
The ANSI code designation for high pressure sodium is ? correct answersS 
 
Due to current dropping to zero twice in a complete AC cycle and fluctuations of light : rotating machinery may seem to be stoppe...