SC Fire Alarm Practice Questions - South Carolina Fire Alarm Contractor Examination Exam

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A conventional four-wire smoke detector requires which additional supervision feature that a two-wire detector does not?

An end-of-line power supervision relay (or equivalent) to supervise the detector power circuit A 177-candela strobe in the same box A Class X pathway to each detector A 120 V AC connection at the detector

Correct Answer:

An end-of-line power supervision relay (or equivalent) to supervise the detector power circuit

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