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Residential Wiring Final Exam Review Of Engineering
(Graded A+) With 100% Guaranteed Solution
A(n) _______ is the circuit conductors between the final overcurrent device and the outlets. open circuit branch circuit feeder circuit service conductor branch circuit The circuit conductors between the service equipment and the final branch circuit overcurrent protection device is a(n) open circuit branch circuit feeder circuit service conductor feeder circuit When doing service entrance calculations, 1 volt-ampere equals 1 joule 1 watt 1 ohm 1 mil 1 watt Which of the following is not permitted to be connected to a small appliance branch circuit? Refrigerator Electric clock Gas stove Kitchen lighting fixture Gas stove
If cables are bundled together for more than 24 inches and the total number of current carrying conductors exceeds ____________, the ampacity of the conductors must be derated. 2 3 4 5 3 When doing a standard service entrance calculation, if a residence has 4 fixed appliances, a demand factor of _______% is applied to the total load of these appliances 50 75 80 100 75 When doing a standard service entrance calculation and applying the demand factor to the total load of the general lighting load, the small appliance circuits, and the laundry circuit, the first _____ volt-amperes are computed at 100% 2000 2500 3000 4000 3000 A 200 ampere rated panel is designed and manufactured to accommodate ____ circuits 30 40 42 any of the above any of the above Which of the following loads does not require a grounded circuit conductor? 2 wires, 120V 3 wires, 120/240V 2 wires, 240V none of the above 2 wires, 240V
insulated bushing Using service entrance cable for the Run between the weather head and the meter socket, the cable must be supported Within___________ inches of both the Weatherhead and the meter socket 12 18 24 30 12 Where underground service cables exit the trench and run up utility pole to the Transformer, the conductors must be protected from physical damage to a height of ______ feet above final grade 3 8 10 12 8 When installing an underground service, a warning tape must be installed at least _____ inches above the buried service entrance conductors 8 12 18 24 12 The NEC provides the specifications for working space around electrical equipment in Article
210 200 110 100 110 According to the NEC, Space in front of a service entrance panel in a residential wiring application must be at least 6.5 feet high, 30 inch wide, and extend at least _____ feet in front of the panel
The grounding electrode conductor must be attached to a metal water pipe grounding electrode no more than _____ feet from the point where the metal water pipe enters the house 3 5 7 9 5 Voltage that is needed to push the house electrical load current through the wires from the utility Transformer, to the service panel, and back to the Transformer is called ________ house current voltage drop volts pressure voltage drop A(n) ________ usually includes a weatherhead, a porcelain standoff fitting, a rubber weather collar, and a piece of roof flashing service packet mast kit service entrance package entrance kit mast kit The maximum distance between receptacle outlets in a garage is ______ feet 4 6 12 N/A N/A
When bonding the various metal parts of a permanently installed swimming pool, all bonding wires must be solid copper and be _____AWG or larger 10 8 6 4 8 Without a special ballast, fluorescent lamps installed in a garage usually will not start when exposed to temperatures below ________ degrees F 60 50 70 80 50 A light-sensing device used to control lighting fixtures in response to detected light levels is called a _______ transfer switch no-niche luminaire dry-niche luminaire photocell photocell NEC requires that if a feeder supplying a detached garage from the service in the main house has an equipment grounding conductor installed with the feeder the grounded conductor ______ Be connected to the equipment grounding conductor or to the grounding electrode system in the garage may shall shall not could shall not
A welding process for joining materials that employs molten metal to permanently join the conductors together is called ______welding stick thermal exothermic cohesive exothermic ANSI/TIA/EIA 570-C was developed to establish a standard for a _______ structured cabling system that can accommodate many different applications communications voice data generic generic The letters RG on a coaxial cable stand for ______ guide residential radio registered rated radio A(n) _________-Type connector is a 75-ohm coaxial cable connector that can fit RG-6 and RG- 59 cables and is used for terminating coaxial cables C F R V F Category _______ cable is the preferred UTP cable for residential voice and data applications 3 5 5e 6 5e
Coaxial cable msut be separated from electric light and power circuits by at least _________ inches 2 3 6 8 2 A _______ terminates voice, video, and data wires to a punch down block punch up tool punch down tool flat tip screwdriver VVD tool punch down tool It is recommended that you install 75-ohm F-Type _________ in each unused television outlet and at each unused splitter port throughout a hosue termination caps dust caps plugs jacks termination caps When installing voice, video, and data wiring in a house, Articles ____, ____, and 830 of the NEC contain some requirements that must be followed 100; 430; 680; 800; 800; _________ ensures that basic continuity and correct terminations have been applied, but does not attempt to measure the information carrying capacity of the cables runs like you would do in a commercial installation Certification Verification Inspection Attenuation
Verification The maximum length for UTP and STP cables installed in houses is ________ feet 100 200 300 400 300 A fuse type that uses the same standard screw base as an ordinary light bulb and where the different fuse sizes are interchangeable with each other is called a ______ fuse cartridge edison base type S stab edison base NEC article _________ provides many installation requirements for overcurrent protection devices 210 230 250 None of the above None of the above (240) A _____ fuse is enclosed in a ninsulating tube that confines the arc when the fuse blows and is available in either a ferrule or blade style cartridge edison base type S stab cartridge NEC Table __________ lists the ampacity of conductors used in residential wiring
310.15(B)(16)
Double pole Overcurrent protection devices must be readily accessible True False True The color coding for a 30-ampere Type S plug fuse is ___________ blue orange green any of the above green Circuit breakers are always interchangeable with different manufacturer's panelboards True False False
