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NCCER ELECTRICAL LEVEL 1 MODULE
11- RESIDENTAL WIRING
The minimum number of small appliance circuits required by the NEC® in a kitchen area is _____. ** 2 When sizing residential electrical services, the laundry load is calculated as _____. 1,500VA When sizing the general lighting load for electric services, the first 3,000VA is rated at _____. ** 100% According to NEC Section 220.53, a demand factor of 75% may be applied to four or more _____. Fixed appliance loads The minimum service disconnect rating for a one-family dwelling is _____. 100A The general lighting load in a residence is 3,600VA at 120V. What is the amperage? 30A
A single-pole GFCI breaker is rated at _____. 120VAC Exposed noncurrent-carrying metal parts of fixed equipment must be grounded if the equipment operates with any terminal over _____. 150V to ground Which section of the NEC® requires that raceway fittings be identified for use with service masts? NEC Section 230. Service drop conductors must be located at a minimum height of _____. 10' above the ground or other accessible surface The clearance between a service conductor without an overall jacket and a porch or balcony must not be less than _____. 3' (900 mm) NEC Section 230.6 considers conductors to be outside the building when installed under at least _____. ** 2" (50 mm) of concrete Type NM cable is prohibited _____. In shallow chases of masonry, concrete, or adobe
If a dwelling has two kitchen areas, then the total small appliance branch circuits required would be ___. Four at 1,500 VA each A lighting load of 2,700VA at 120V has an amperage of _____. 22.5Amps(Divide VA/V) When used as grounding electrode, a grounding ring must be at least ____. 20' When a screw is used as a main bonding jumper, it must be colored ____. Green Per NEC Section 230.24(B), if 120v/240v service conductors pass over residential property and driveways or commercial property that is not subject to truck traffic, the conductors must be at least _______. 12'(3.7 m) above the ground A residence has conductors installed under a 1" (25mm) slab. According to NEC Section 230.6, these conductors are considered _______. Inside the house, and a disconnect is required at the meter base. The correct operation of a four-way switch requires at least _____.
Two three-way switches The cable that contains insulated circuit conductors enclosed in armor made of metal is _____. Metal Cad (Type MC) Cable A factory-assembled cable with two or more insulated conductors and non-metallic jacket is called ___. (Type NM and NMC cable) Nonmetallic-sheeted cable ____ are pieces of equipment that have been designed for a particular purpose. Appliances A ____ is used for truing an electrical circuit on and off. Switch The circuit that is routed to a switch box for controlling electric lights is known as ____. Switch leg A _____ is equipped with a conductor terminal to accept as a bounding jumper. Bounding bushing
Load center Raceway, cables, wires, boxes, and other equipment are installed during _______. Roughing in The term ____ is general cable's trade name for type NM cable, but its often used to refer to any nonmetallic-sheeted cable Romex® True or False? In a residential electric service, the service can be grounded to the underground gas piping system. ** False A duplex receptacle outlet must be installed in all hallways longer than _____. ** 10 feet Electric ranges, clothes dryers, and water heaters that operate at 240v require a(n) ___ circuit breaker. Double or 2-pole
