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

Why must polarity be observed when connecting polarized notification appliances on a 24 V DC NAC?

Polarity has no effect on DC notification appliances Reversed polarity can prevent the appliance from operating or can defeat supervision Reversed polarity increases candela output Polarity is required only on 120 V AC horns

Correct Answer:

Reversed polarity can prevent the appliance from operating or can defeat supervision

Access more questions from this quiz

Continue to SC Fire Alarm Practice Questions - South Carolina Fire Alarm Contractor Examination Exam for more practice questions and the full quiz experience.

Access More Questions