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

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A 24.0 V NAC supplies a 0.90 A alarm load. The outgoing and return conductors together measure 6.40 ohms. What voltage remains at the last appliance, assuming the load is treated as being at the end of the run?

5.76 V 18.24 V 24.00 V 30.00 V

Correct Answer:

18.24 V

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