EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN: 9781337516549
Author: Simmons
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Question
Chapter 25.3, Problem 6R
a.
To determine
Find the operating voltage of residence chimes.
b.
To determine
How the rated voltage for chimes can be obtained.
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7.A. Ferrous metal raceways or enclosures are made with _______ content.A. steel or brassB. aluminum or ironC. brass or aluminumD. iron or steel7.B. The size of a grounding electrode conductor for a service or separately derived system is generally basedon the size of the largestA. ungrounded supply conductor.B. equipment grounding conductor.C. grounded electrode.D. bonding jumper.7.C. Which of the following statements about bonding is true?A. The joint or termination must offer opposition in the circuit for effective electrical connections.B. Effective bonding keeps impedance high if a fault should occur.C. The entire electrical safety circuit is only as good as its strongest bonded link.D. Bonding connections must endure high levels of fault current until overcurrent protective devices can operate.
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.
Chapter 25 Solutions
EBK ELECTRICAL WIRING RESIDENTIAL
Ch. 25.1 - How many television outlets are installed in this...Ch. 25.1 - Which type of television cable is commonly used...Ch. 25.1 - What determines the design of the faceplates used?...Ch. 25.1 - Prob. 4RCh. 25.1 - From a cost standpoint, which system is more...Ch. 25.1 - Prob. 6RCh. 25.1 - Prob. 7RCh. 25.1 - Prob. 8RCh. 25.1 - Which article of the Code references the...Ch. 25.1 - It is generally understood that grounding and...
Ch. 25.1 - Prob. 11RCh. 25.1 - Prob. 12RCh. 25.1 - Which section of the Code prohibits supporting...Ch. 25.1 - When hooking up one CATV cable and another cable...Ch. 25.1 - Prob. 15RCh. 25.1 - Prob. 16RCh. 25.2 - How many locations are provided for telephones in...Ch. 25.2 - At what height are the telephone outlets in this...Ch. 25.2 - Sketch the symbol for a telephone outlet.Ch. 25.2 - Is the telephone system regulated by the NEC?...Ch. 25.2 - a. Who is to furnish the outlet boxes required at...Ch. 25.2 - Who is to furnish the telephones? _____Ch. 25.2 - Who does the actual installation of the telephone...Ch. 25.2 - How are the telephone cables concealed in this...Ch. 25.2 - Prob. 9RCh. 25.2 - What are the colors contained in a four-conductor...Ch. 25.2 - Itemize the code rule for the installation of...Ch. 25.2 - If finger contact were made between the red...Ch. 25.2 - What section of the Code prohibits supporting...Ch. 25.2 - The term cross-talk is used to define the hearing...Ch. 25.2 - Which section of the Code prohibits telephone...Ch. 25.3 - Prob. 1RCh. 25.3 - What style of chime is used in this residence?...Ch. 25.3 - a. How many solenoids are contained in a 2-tone...Ch. 25.3 - Explain briefly how two notes are sounded by...Ch. 25.3 - a. Sketch the symbol for a push button....Ch. 25.3 - Prob. 6RCh. 25.3 - What is the maximum volt-ampere rating of...Ch. 25.3 - What two types of chime transformers for Class 2...Ch. 25.3 - Is the extension chime connected with the front...Ch. 25.3 - a. What change in equipment may be necessary when...Ch. 25.3 - What type of insulation is usually found on...Ch. 25.3 - Prob. 13RCh. 25.3 - a. How many wires are run between the front hall...Ch. 25.3 - Why is it recommended that the low-voltage...Ch. 25.3 - a. Is it permissible to install low-voltage Class...Ch. 25.3 - a. Where is the transformer in the residence...Ch. 25.3 - a. How many feet of 2-conductor bell wire cable...Ch. 25.3 - Prob. 19RCh. 25.3 - Prob. 20RCh. 25.3 - What section of the Code prohibits supporting fire...Ch. 25.3 - Prob. 22RCh. 25.3 - What does the term Wi-Fi stand for? _____Ch. 25.3 - A Wi-Fi system is (required) (optional). (Circle...
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