EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN: 9781337516549
Author: Simmons
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Textbook Question
Chapter 4, Problem 47R
Most armored cable today has 90°C conductors. What is the correct designation for this type of armored cable?______
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Chapter 4 Solutions
EBK ELECTRICAL WIRING RESIDENTIAL
Ch. 4 - The largest size solid conductor generally...Ch. 4 - What is the minimum branch-circuit wire size that...Ch. 4 - What exceptions, if any, are there to the answer...Ch. 4 - What determines the ampacity of a wire?Ch. 4 - What unit of measurement is used for the diameter...Ch. 4 - What unit of measurement is used for the...Ch. 4 - What is the voltage rating of the conductors in...Ch. 4 - Indicate the allowable ampacity of the following...Ch. 4 - Prob. 9RCh. 4 - What are the colors of the conductors in...
Ch. 4 - For nonmetallic-sheathed cable, may the...Ch. 4 - Prob. 12RCh. 4 - Under what condition may nonmetallic-sheathed...Ch. 4 - a. What is the maximum distance permitted between...Ch. 4 - Prob. 15RCh. 4 - Prob. 16RCh. 4 - Prob. 17RCh. 4 - Prob. 18RCh. 4 - Prob. 19RCh. 4 - Circle the correct answer to the following...Ch. 4 - When running Type NM cable through a bored hole in...Ch. 4 - Where is the main service-entrance panel located...Ch. 4 - Is it permitted to use flexible metal conduit over...Ch. 4 - Liquidtight flexible metal conduit may serve as a...Ch. 4 - It is permissible for an electrician to connect...Ch. 4 - Terminals of switches and receptacles marked...Ch. 4 - Wire connectors marked AL/CU are suitable for use...Ch. 4 - A wire connector bearing no marking or reference...Ch. 4 - When Type NM cable is run through a floor, it must...Ch. 4 - When nonmetallic-sheathed cables are bunched or...Ch. 4 - In diagrams A and B, nonmetallic-sheathed cable is...Ch. 4 - The marking on the outer jacket of a...Ch. 4 - A 120-volt branch circuit supplies a resistive...Ch. 4 - In problem 35, it is desired to keep the voltage...Ch. 4 - Prob. 37RCh. 4 - The allowable ampacity of a 4 AWG THHN from Table...Ch. 4 - If, because of some obstruction in a wall space,...Ch. 4 - The recessed fluorescent luminaires installed in...Ch. 4 - Prob. 41RCh. 4 - What size overcurrent device protects the...Ch. 4 - May the 20-ampere small-appliance branch circuits...Ch. 4 - A 30-ampere branch circuit is installed for an...Ch. 4 - In many areas, metal framing members are being...Ch. 4 - Are set screwtype connectors permitted to be used...Ch. 4 - Most armored cable today has 90C conductors. What...Ch. 4 - If you saw two different types of SE cables, how...Ch. 4 - Circle the correct answer defining the type of...
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- Complete the wiring diagram for the Recreation Room. Follow the suggested cable layout. Use colored pencils or pens to identify the various colors of the conductor insulation.arrow_forwardIs it always necessary to attach the bare equipment grounding conductor of a nonmetallic-sheathed cable to the green hexagon-shaped grounding screw on a receptacle? Explain.arrow_forwardAre 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_forward
- 6. Which of the following is a condition that a liquidtight flexible metal conduit must meet in order to be suitable as an equipment grounding conductor? A. The conduit is terminated in listed fittings.B. For trade sizes 3/4 through 1 1/4, the conduit conductors contained in the conduit are protected by overcurrent devices rated at 20 amperes or less.C. The combined length of the conduit and other tubing and conduit in the same ground-fault path exceeds six feet. D. For trade sides 3/8 through 1/2, the circuit conductors contained in the conduit are protected by overcurrent devices rated not more than 60 amperes. 7. You're going to connect a surge protection device to a separately derived electrical system. In this situation, the surge protection device should be connected at A. the load side of the first overcurrent protection device. B. the input to the transformer's primary winding.C. the end of the shortest branch circuit.D. the first connected IT cabinet. 8. What is another term…arrow_forwardThe point of attatchment of the service drop conductors to a building must not be less than ______ ft above finish gradearrow_forwardQUESTION 25 Type TC cable shall not be _____. a. installed where it will be exposed to physical damage b. all of these c. installed outside of a race-way or cable tray system, unless permitted in 336.10(4), 336.10(7), 336.10(9), and 336.10(10) d. used where exposed to direct rays of the sun, unless identified as sunlight resistantarrow_forward
- If you use 600-volt rated conductors for Class 2 wiring, does the Code permit pulling these conductors through the same raceway as the power conductors? (Yes) (No) (Circle the correct answer.) Give the NEC section number. ____________arrow_forwardHow many circuit wires enter the entry ceiling box? How many equipment grounding conductors enter the entry ceiling box?arrow_forwardWhich section of the Code prohibits supporting coaxial cables from raceways that contain light or power conductors? NEC ______________arrow_forward
- What section of the Code prohibits supporting fire alarm conductors from raceways that contain light or power conductors? NEC ______.arrow_forwardwhat is grading of cables, explain proper in details with block diagramarrow_forwardWhen the ground is removed from the sheath at one end to reduce heating in a cable, what hazard exists at the ungrounded end of the cable?arrow_forward
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