Millwright Level 1 Practice Exam

What would be best suited for protection when working with electric power in a wet space?

1. Insulated gloves

2. GFCI

3. Rubber boots

4. Safety mat

The correct answer is: GFCI

Using a Ground Fault Circuit Interrupter (GFCI) is particularly effective for protecting against electric shock when working in wet environments. A GFCI detects any imbalance in the electrical current and quickly shuts off the power supply, minimizing the risk of serious injury or fatality that can occur from electrical faults. In wet spaces, where water can increase the risk of electric shock, GFCIs become essential safety devices. They are designed to trip the circuit when they sense ground faults, which is critical in these hazardous conditions. While insulated gloves, rubber boots, and safety mats can provide some level of protection, they do not effectively eliminate the electrical hazard. Insulated gloves can protect the hands, but if the circuit is not interrupted, the risk remains. Rubber boots might help resist electrical flow, but again, they do not prevent the danger of a fault occurring. Safety mats can provide insulation against static electricity or minor shocks, but they do not actively monitor the circuit for faults. Therefore, utilizing a GFCI is the recommended approach when working with electric power in a wet space to ensure comprehensive safety.