Which activity is specifically associated with monthly maintenance to reduce electrical hazard?

• A. Recalibration
• B. Lubricate moving parts
• C. Check power cords for fraying or wear
• D. Update firmware

Answer: (C)

Maintenance to reduce electrical hazard focuses on keeping the power supply safe. Checking power cords for fraying or wear is the best fit because damaged insulation or exposed conductors can lead to electric shock, short circuits, or fires. Regular monthly checks catch wear before it becomes dangerous, and any damaged cord should be removed from service and replaced by a qualified technician. Always unplug the device before inspection. Recalibration ensures accuracy of output, lubrication reduces mechanical friction, and firmware updates address software issues; none directly targets electrical safety like inspecting cords does.