EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN: 9781337516549
Author: Simmons
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 10, Problem 5R
Exposed non-current-carrying metallic parts of electrical equipment must be grounded if installed within _______________ ft (______________ m) vertically or ____________ ft (______________ m) horizontally of bathtubs, plumbing fixtures, pipes, or other grounded metal work or grounded surfaces.
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Chapter 10 Solutions
EBK 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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- For installing directly in a concrete slab, (armored cable), (non metallic-sheated cable), (rigid metal conduit) may be used. (Circle the correct method of installation.)arrow_forwardThe arrangement of grounding connections shall ensure that the disconnection or the removal of a luminaire, receptacle, or other device fed from the box does not interrupt the electrical continuity of the ____________ providing an effective ground-fault current path. grounding conductor(s) ungrounded conductor(s) equipment grounding conductor(s) all of these.arrow_forwardFor residential wiring, not less than one 15-ampere lighting branch circuit should be provided for every ____________ ft2 of floor area. If 20-ampere lighting branch circuits are used, provide one 20-ampere lighting branch circuit for every ____________ ft2 of floor areaarrow_forward
- Are double locknuts an acceptable bonding method for Class 1, Division 1 Hazardous locations? If not, list an acceptable method, backing up your answer with a code citation.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_forward3. Identify and explain the safety procedures and precautions that should be followed for fire prevention and safety during the installation of the cables? Note: Please do not handwritten.arrow_forward
- 5. If a separate, wire-type equipment grounding conductor (EGC) is used for any reason, the EGC of a grounding-type receptacle must be connected to which of the following?A. The grounding terminal bar outside the service equipment enclosure in a grounded systemB. An EGC that's part of another branch circuit that originates from where the branch circuit for the receptacle originatesC. Any accessible point on the grounding electrode conductorD. The service conductor outside the service equipment enclosure in an ungrounded systemarrow_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_forward10.a. Which of the following is a condition of the exception that allows the grounded conductor of feeders tobe used for grounding at separate buildings or structures?A. There are common electrically continuous metallic paths between the feeder source and the destination at the structure served.B. There are common electrically continuous nonmetallic paths between the equipment grounding conductor and the destinationat the structure served.C. An equipment grounding conductor isn't included with the supply circuit to the separate structure.D. Ground-fault protection of equipment is provided on the supply side of the feeder.10.b. A service disconnection means must be installed adjacent to, within sight of, and no more than_______ feet from a mobile home.A. 20B. 30C. 10D. 50arrow_forward
- Assuming that an outlet box for the entry ceiling has a fixture stud but has external cable clamps, what size box could be installed? Show calculations for both metal and nonmetallic boxes. ___________arrow_forwardTrue or False If a metal rack is properly grounded the equipment that is mounted on the rack and in good electrical contact with it is considered to be groundedarrow_forwardexplain the LIGHTING FIXTURES INSTALLATIONarrow_forward
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