The________ is used to ensure that the site lighting is turned off during the daylight hours.
A) underground cable
B) contactor
C) pressure switch
D) photocell
Correct Answer:
Verified
Q8: How are dimmers used to control lighting?
Q9: The light in fluorescent lamps is produced
Q10: The amount of light, or_ , needed
Q11: The Edison-type lamp uses a(n) _enclosed in
Q12: By dividing the _rating of a lamp
Q14: The _lamp has, by far, the shortest
Q15: What factors affect light distribution?
Q16: A contactor is similar to a_ in
Q17: A_ is used to deactivate the lighting
Q18: What is the role of color perception
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