Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 10, Problem 8R
- a. The NEC in Section _______________ requires that all receptacles in bathrooms be _______________ protected.
- b. The NEC in Section _______________ requires that all receptacles in bathrooms be connected to one or more separate 20-ampere branch circuits that serve no other outlets.
- c. The NEC in Section _______________ permits the additional required 20-ampere branch circuit for bathroom receptacles to supply more than one bathroom.
- d. The NEC in Section _______________ permits other electrical equipment to be connected to the additional required 20-ampere branch circuit for bathroom receptacles, but only if the branch circuit supplies a single bathroom and the other equipment is located in that same bathroom.
- e. The NEC in Section _______________ prohibits mounting receptacles in bathrooms face-up in the countertops and work surfaces near basins.
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6.a. A run of conduit that will carry several conductors is installed inside a wall. The wall is later finished sothat the run of conduit is no longer visible. This is an example of a(n)A. load.B. device.C. NEC violation.D. concealed raceway.6.b. Since the voltages across each branch circuit in a residence are the same, these circuits areA. connected in series.B. connected in parallel.C. controlled circuit configurations.D. complex circuit configurations.
6.a. Extreme _______ may cause some nonmetallic conduits to become brittle and therefore moresusceptible to damage from physical contact.A. coldB. corrosionC. voltageD. heat6.b. Snap switches are permitted to be grouped or ganged in an enclosure provided the voltage between theadjacent snap switches does not exceed ___ V.A. 400B. 300C. 200D. 100
Chapter 10 Solutions
Electrical Wiring Residential
Ch. 10 - Prob. 1RCh. 10 - There is a 3-way switch in the bedroom hallway...Ch. 10 - What wattage was used for each vanity luminaire to...Ch. 10 - What is the current draw for the answer given in...Ch. 10 - Exposed non-current-carrying metallic parts of...Ch. 10 - What color are the faceplates in the bathrooms?...Ch. 10 - Prob. 7RCh. 10 - a. The NEC in Section _______________ requires...Ch. 10 - Hanging luminaires must be kept at least...Ch. 10 - The following is a layout of a lighting circuit...
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- a. The Code requires a minimum of two small-appliance circuits in a kitchen. Is it permitted to connect a receptacle in a dining room to one of the kitchen small-appliance circuits? _______________ What Code section applies to this situation? _______________ b. Are outdoor weatherproof receptacles permitted to be connected to a 20-ampere small-appliance circuit? _______________ c. Receptacles located above the countertops in the kitchen must be supplied by at least _______________ 20-ampere small-appliance circuits.arrow_forwardGrounding Lighting Fixtures. There are specific requirements for grounding lighting fixtures. How must they be grounded and with what size conductors? Be sure and cite the code in your answers.arrow_forwardQUESTION 9 When a ground wire is connected to an interior gas piping system and the underground portion of the gas pipe into the building is plastic, which of the following is (or are) true? a A.This would be approved by code as the gas pipe is only being bonded to the electrical system. b B.This installation would be approved by code, as the gas pipe is not a grounding electrode. c C.Both A and B d D.Neither A nor Barrow_forward
- To testing installation of grounds, the usual procedure is to connect one lead of the megohmmeter to one of the conductors, then the other lead is___. A, connected to another conductor b, connected to the conduit or raceway c. Connected to a special grounding electrode on the megohmmeter d. Left unconnectedarrow_forwardThe NEC requires that a ____________ means be provided for standby power systems. In the case of portable gen sets, this might be as simple as pulling out the plug on the extension cord that is plugged into the receptacle on the gen set. For permanently installed standby power generators, this might be on the gen set and/or separately provided inside or outside of the home.arrow_forwardConnect the initial circuit as shown in Figure 47-1.2. Set VA at 20 volts. Insert a jumper wire between points A and B and observe the meter action.OBSERVATION Current flowed for approximately ___________ seconds as evidenced by the voltagemeasured across R. The rate of charge was (linear, nonlinear) __________________.nCONCLUSION The current that flowed was the charging current that charged the capacitor to avoltage equal to (VR, VA) ____________________. Was charging current maximum atthe beginning of the charge time or near the end? _________. At the beginning of thecharge time, the voltage across R was equal to (VC , VA) _______________________(the first instant). At the end of the charge time, the voltage across the resistor is________ volts; the voltage across the capacitor is equal to VA.arrow_forward
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