Explanation should include functions, operation, and characteristics as well as

• identifying components used in power system wiring
• stating how conduit, nonmetallic sheathed, and metal sheathed cables are routed in residential installations
• identifying the proper termination for the cabling. 

Process/Skill Questions:

• How is 120 V derived in a normal single-phase three-wire system?
• How is 240 V derived in a normal single-phase three-wire system?
• How is a neutral derived in a 120-240 V three-wire system?