On electrical drawings, what does the symbol 'GFCI' inside a circle represent?
Correct Answer
D) Ground fault circuit interrupter outlet
GFCI in a circle on electrical drawings represents a ground fault circuit interrupter outlet. These outlets are required in wet locations like bathrooms, kitchens, and outdoor areas for safety.
Why This Is the Correct Answer
GFCI inside a circle on electrical drawings is the standard symbol for a ground fault circuit interrupter outlet. This symbol indicates a special type of electrical outlet that monitors electrical current flow and automatically shuts off power when it detects a ground fault, preventing electrical shock. GFCIs are mandatory safety devices in wet locations and are clearly marked on electrical plans to ensure proper installation by electricians.
Why the Other Options Are Wrong
Option B: General frequency control indicator
Generator field circuit isolator is a component related to generator systems, not standard outlet symbols. While generators may have isolators, the GFCI symbol specifically indicates a safety outlet for general electrical use, not generator equipment.
Option C: Generator field circuit isolator
Gas flow control inlet relates to plumbing or gas systems, not electrical systems. The GFCI symbol specifically appears on electrical drawings and has nothing to do with gas flow control components.
Memory Technique
Remember 'GFCI = Ground Fault Circuit Interrupter' by thinking 'Get Free from Electrical Injury' - these outlets protect you from electrical shock in wet locations.
Reference Hint
Florida Building Code - Electrical Chapter, Section on GFCI requirements and electrical symbols/legends section of construction drawings
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