When a galvanized eye-bolt is to be used as the point of attachment for an electrical service, the NEC requires the eye-bolt to be installed NOT less than _____ above finished grade.

The Journeyman Electrician exam covers: grounding and bonding, overcurrent protection, wiring methods and installation, boxes and fittings, services and equipment, motors, special occupancies, load calculations, lighting, appliances, box and raceway fill, hazardous locations, trade knowledge and electrical theory.