10 Questions
What is the key factor for successful clearing of ground fault currents?
Electrical continuity
Which of the following is NOT listed in NEC Section 250.92(A) as required items to be bonded together?
Grounding rods
In ensuring continuity at service equipment, which of the following methods is permitted according to NEC Section 250.92(8)?
Connections utilizing threaded couplings or listed threaded hubs on enclosures if made up wrench-tight
What is the purpose of the equipment grounding conductor in an electrical system?
To interconnect and bond the noncurrent-carrying metal parts of equipment to the system grounded conductor or grounding electrode conductor
What is the recommended method for splicing wire-type grounding electrode conductors?
Using irreversible compression-type connectors
When is it necessary to ground appliances like refrigerators, air conditioners, and washing machines?
When operating these appliances in wet or damp locations
What type of receptacles must be used in residential, commercial, or industrial applications?
Grounding type
When using metallic boxes, where should the equipment grounding conductors be attached?
To the grounding terminal on the receptacle
In nonmetallic boxes with Type NM cable, where should the equipment grounding conductor be connected?
To the grounding terminal on the receptacle
Which of the following is a permitted form for equipment grounding conductors as stated by NEC?
Liquid tight flexible metal conduit
Test your knowledge on grounding in electrical wiring systems, including different types of cables, cable trays, and bonding jumpers as per NEC regulations. Learn about providing electrical continuity to ensure safe operation and successful clearing of ground fault current.
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