Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 2.1, Problem 6R
a.
To determine
Explain the uses of junction boxes.
b.
To determine
Explain whether all the junction boxes are normally used in first floor or not.
c.
To determine
Explain whether the junction boxes are normally used to wire exposed portion of the basement or not.
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2. Imagine that you're asked to install an auxiliary grounding electrode at the base of a lighting pole in aparking lot. This auxiliary grounding electrode will be connected to theA. lighting pole's electrical service equipment grounding conductor.B. electrical service's grounding electrode conductor.C. next lighting pole's auxiliary grounding electrode.D. lighting pole's neutral conductor.
of p
o How many conductors enter the ceiling fan/light wall box?
Switch ond out let boxes
s tirst
10. What type and size of box may be used for the ceiling fan/light wall box?.
11. What type of covers are used with 4 in. square outlet boxes?
12. a. Does the circuit for the Master Bedroom have a grounded circuit conductor?
b. Does it have an equipment grounding conductor?
c. Explain the difference between a "grounded" conductor and an "equipment
grounding" conductor.
13. Approximately how many feet (meters) of 2-wire cable and 3-wire cable are needed to
ft
complete the circuit supplying the Master Bedroom? Two-wire cable:
ft (-
m).
m). Three-wire cable:
14. If the cable is laid in notches in the corner studs, what protection for the cable must be
provided?
15. How high are the receptacles mounted above the finished floor in this bedroom?
16. Approximately how far from the bedroom door is the first receptacle mounted? (See
the plans.)
17. What is the distance from the finished floor to…
The circuit breaker cubicles illustrated in your reading material each contain____circuit breakers.
A. Two B. Three C. Four D. Six
Chapter 2 Solutions
Electrical Wiring Residential
Ch. 2.1 - What does a plan show about electrical outlets?...Ch. 2.1 - Prob. 2RCh. 2.1 - Prob. 3RCh. 2.1 - Prob. 4RCh. 2.1 - Prob. 5RCh. 2.1 - Prob. 6RCh. 2.1 - Prob. 7RCh. 2.1 - Prob. 8RCh. 2.1 - What methods may be used to mount luminaries to an...Ch. 2.1 - What advantage does a 4 in. octagon box have over...
Ch. 2.1 - What is the size of the opening of a switch...Ch. 2.1 - Prob. 12RCh. 2.1 - Prob. 13RCh. 2.1 - Prob. 14RCh. 2.1 - Prob. 15RCh. 2.1 - Prob. 16RCh. 2.1 - Prob. 17RCh. 2.1 - Prob. 18RCh. 2.1 - Prob. 19RCh. 2.1 - Prob. 20RCh. 2.1 - Prob. 21RCh. 2.1 - Prob. 22RCh. 2.1 - Prob. 24RCh. 2.1 - Prob. 26RCh. 2.1 - Prob. 27RCh. 2.1 - Prob. 28RCh. 2.1 - Prob. 29RCh. 2.1 - Prob. 31RCh. 2.1 - Does the NEC allow metal raceways to be used with...Ch. 2.2 - Prob. 1RCh. 2.2 - What is the size of the footing for the steel...Ch. 2.2 - Prob. 3RCh. 2.2 - Prob. 4RCh. 2.2 - Prob. 5RCh. 2.2 - Prob. 6RCh. 2.2 - How far is the front garage wall from the curb?...Ch. 2.2 - How far is the side garage wall from the property...Ch. 2.2 - Prob. 9RCh. 2.2 - What is the purpose of the I-beams that rest on...Ch. 2.2 - Where is access to the attic provided?...Ch. 2.2 - Prob. 13RCh. 2.2 - Prob. 14RCh. 2.2 - Prob. 15RCh. 2.2 - Prob. 16RCh. 2.2 - What is the stud size for the partitions between...Ch. 2.2 - Who is to furnish the range hood?...Ch. 2.2 - Who is to install the range hood?...
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- Receptacle and cord terminals should be marked as follows;A. “X” and “O” ungrounded, “W” grounded and “G” equipment groundingB. “Y” and “X” ungrounded, “N” grounded and “GR” equipment groundingC. “X” and “O” ungrounded, “W” grounded and “E” equipment groundingD. “X” and “Y” ungrounded, “W” grounded and “G” equipment groundingarrow_forward1.1 PV modules can be wired together in an array using ______ connections to increase voltage. a. Terminating b. Series c. Parallel d. AC 1.2 A PV module, also called a solar panel, is comprised of individual photovoltaic _______ wired and mounted together as an integrated unit. a. Capsules b. Compartments c. Chips d. Cells 1.3 A __________ system uses a storage system that stores the generated electricity so it can provide during times when the system’s panels are not receiving solar energy. a. Direct coupled b. Self regulating c. Charge controlled d. Indirectly connected 1. 4 __________ energy may have the potential to supply all of the world's energy needs, but at this time, it provides a very small percentage. a. Coal b. Natural Gas c. Diesel d. Solararrow_forwardA means shall be provided in each metal box over 100 cubic inches for the connection of an equipment grounding conductor. The means shall be permitted to be ______. a tapped hole the cover screw III. a screw used to mount the box (a.) I only (c.) I & II only (b.) II only (d.) I, II or IIIarrow_forward
- Grounding 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_forwardIf a recessed luminary without an integral junction boxes installed what extra wiring must be providedarrow_forward6.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.arrow_forward
- QUESTION 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_forward8.a. A grounded conductor is a conductor that has been _______ grounded.A. electronicallyB. accidentallyC. intentionallyD. partially8.b. Which of the following is a sheet-metal or nonmetallic enclosure equipped with hinged or removablecovers that's used to supplement wiring space?A. Auxiliary gutterB. Junction boxC. Trolley buswayD. Outlet boxarrow_forwardFill in the blanks. One of electrical wiring design procedure is that circuit all ____________ and __________ to the appropriate panels and prepare the panel schedule.arrow_forward
- Equipment Grounding 10. Which of the following statements about ground faults is true?A. They usually occur between any grounded circuit conductor and the equipment grounding conductor. B. They're often normal and typically intentional.C. They can't result from human error.D. They can happen if a conductive tool is dropped in an energized equipment's electrical enclosure.arrow_forward3. Which of the following statements about the use of structural steel as an equipment grounding conductor(EGC) in an AC system is correct?A. Structural steel isn't allowed for use as an EGC.B. Structural steel can be used as an EGC bonding jumper between panelboards.C. Structural steel must have an EGC bonding jumper every three feet of structure.D. Structural steel can be used as an EGC when it's bonded at both ends.arrow_forward12. Which of the following statements about ground faults is true?A. They can happen if a conductive tool is dropped in an energized equipment's electrical enclosure.B. They usually occur between any grounded circuit conductor and the equipment grounding conductor.C. They can't result from human error.D. They're often normal and typically intentional.arrow_forward
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