Residential Electrical Services Complete Questions And Answers With Verified Solutions

Which of that following locations at dwelling units require GFCI protection? - Answer-Receptacles within gaarages Which type of cable with a corrugated sheath has a maximum bend raduis of 7 times the cable diameter? - Answer-Type MC Which of the following circuits require a minimum of 20A of overcurrent protection? - AnswerResidential small appliance branch circuits According to the NEC, which of the following is required for the small appliance loads in each kitchen area? - Answer-Two 120V, 20A small appliance branch circuits According to NEC Section 220.53, loads for which of the following appliances shall be permissible to apply a demand factor of 75%? - Answer-Fixed appliances The NEC allows the load calculation for the ground neutral conductor supplying electric ranges and dryers to have a demand factor of ______. - Answer-70% Which of the following is required to carry the lighting load for the residence in the figure above? - Answer-Two 15A circuits How many square feet of livable space are in the home in figure above? - Answer-1,200 Which of the following is the minimum NEC lighting load requirement for the home in the figure above? - Answer-3,600VA Which of the following is an NEC-approved grounding electrode? - Answer-Metal underground water pipe in direct contact with the earth for 10 feetThe minimum clearance of service drop conductors over a residential driveway is reduced to 12 feet when the voltage is limited to ________. - Answer-300V to ground The section of the NEC that lists the requirements for installing service disconnecting means is ______. - Answer-NEC Section 230.70 Romex is a trade name for _____. - Answer-Type NM cable Cables routed through bored holes in framing members must maintain a distance from the nearest edge of not less than ______. - Answer-1-1/4 inches