Residential Electrical Services || Questions with complete solutions.

an example of a location in a dwelling where a receptacle must have gfci protection is a correct answers garage Which type of cable with a corrugated sheath has a maximum bend raduis of 7 times the cable diameter? correct answers Type MC Which of the following circuits require a minimum of 20A of overcurrent protection? correct answers Residential small appliance branch circuits According to the NEC, which of the small appliance loads in each kitchen area of a dwelling must be served by at least correct answers 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%? correct answers Fixed appliances The NEC allows the load calculation for the ground neutral conductor supplying electric ranges and dryers to have a demand factor of ______. correct answers 70% Which of the following is required to carry the lighting load for the residence in the figure above? correct answers Two 15A circuits How many square feet of livable space are in the home in figure above? correct answers 1,200 Which of the following is the minimum NEC lighting load requirement for the home in the figure above? correct answers 3,600VA Which of the following is an NEC-approved grounding electrode? correct answers Metal underground water pipe in direct contact with the earth for 10 feet The minimum clearance of service drop conductors over a residential driveway is reduced to 12 feet when the voltage is limited to ________. correct answers 300V to ground The section of the NEC that lists the requirements for installing service disconnecting means is ______. correct answers NEC Section 230.70 Romex is a trade name for _____. correct answers Type NM cable Cables routed through bored holes in framing members must maintain a distance from the nearest edge of not less than ______. correct answers 1-1/4 inches Which of the following must be supported at intervals of 6 feet or less? correct answers Type MC cable Which of the following will detect a current imbalance as low as 4 miliamps? correct answers A GFCI sensor