What is a GFCI and where should it be used backstage?

• A. A type of fuse that protects circuits
• B. A device that reduces voltage to safe levels
• C. Ground Fault Circuit Interrupter; used on outlets in damp or temporary electrical installations to prevent shock
• D. A device that switches off power automatically after 30 seconds

Answer: (C)

A GFCI is a Ground Fault Circuit Interrupter that protects people from electric shock by quickly cutting power when it detects an imbalance between the hot and neutral conductors, indicating current leakage to ground. It should be used on outlets in damp or temporary electrical installations backstage because moisture and portable setups increase the risk of shock, and the rapid shutdown helps prevent injury. It’s not a fuse that protects circuits, not a device that reduces voltage, and not a timer-style switch that turns off after a set period; those functions don’t provide the ground-fault protection needed in wet or temporary backstage environments.