EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN: 9781337516549
Author: Simmons
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 16, Problem 12R
To determine
Explain the term “cover”.
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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 unconnected
a.2. Which of the following statements about grounding electrode conductors is true?A. They restrict the ground connection.B. They eliminate potential differences between conductive objects and the Earth electrode.C. They facilitate operation of overcurrent protective devices.D. They perform bonding between the Earth and grounded conductors.a.3. Main bonding jumpers are required to be made of _______ or other corrosion-resistant material.A. brassB. aluminumC. copperD. copper-clad aluminum
A(n) _________ is a reliable conductor used to ensure the required electrical conductivity between metal parts required to be electrically connected. a) Equipment bonding jumper b) Bonding conductor of jumper c) Main bonding jumper d) Equipment grounding conductor
Chapter 16 Solutions
EBK ELECTRICAL WIRING RESIDENTIAL
Ch. 16 - Prob. 1RCh. 16 - What are the circuit ratings? __________________Ch. 16 - Prob. 3RCh. 16 - Prob. 4RCh. 16 - Prob. 5RCh. 16 - a. How many lights are recommended for a one-car...Ch. 16 - From how many points in the garage of this...Ch. 16 - GFCI breakers or GFCI receptacles are relatively...Ch. 16 - The total estimated volt-ampere load of the garage...Ch. 16 - Prob. 10R
Ch. 16 - Prob. 11RCh. 16 - Prob. 12RCh. 16 - In the spaces provided, fill in the cover (depth)...Ch. 16 - What section of the Code prohibits embedding Type...Ch. 16 - Prob. 15RCh. 16 - When a box-cover unit is installed for an overhead...Ch. 16 - When outdoor receptacles are installed where a...Ch. 16 - In order to wire a post light, a homeowner...Ch. 16 - What concerns are there when installing a...
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- If a grounding electrode conductor is connected at the first system disconnecting means or overcurrent device, the bonding jumper is sized the same as the ____. Select one: A. EQUIPMENT BONDING JUMPER B. POSITIVE CONDUCTOR C. SUPPLY-SIDE BONDING JUMPER D. NEUTRAL CONDUCTORarrow_forwardList the minimum trade size of Type EMT for each of the following applications. Assume the use of conductors with THHN insulation. Six 14 AWG ______ Six 12 AWG ______ Three 10 AWG ______ Four 8 AWG ______arrow_forward14. A grounded circuit conductor and the equipment grounding conductor should always be joined at theservice by aA. steel raceway.B. main bonding jumper.C. bus bar.D. short length of aluminum conductor.arrow_forward
- Equipment Grounding 13. A metal elbow is a part of a nonmetallic, underground raceway. The elbow won't need to be grounded as long as it's encased in at least _______ inches of concrete. A. 4 B. 5 C. 2 D. 6 13 A. Which of the following can be in the form of a wire and is required to be installed with feeders and branch circuits? A. Phased neutral conductorB. Equipment grounding conductor C. Grounded neutral conductorD. Grounding electrode conductorarrow_forward6. Which of the following statements about bonding is true?A. The strike terminals of a lightning protection system must be bonded to the building or structure grounding electrode system.B. Bonding requirements on the supply side of the service disconnect are less restrictive.C. Wire-type supply-side bonding jumpers are usually short in length and installed from the service-entrance conductor to asingle raceway.D. Metal water piping systems have one set of rules in the National Electrical Code.arrow_forwardH2. A/An _______ is an insulating tube or sleeve that protects an electrical conductor where it passesthrough a hole.A. expansion fittingB. couplingC. gland nutD. bushing H3. Conductors that are larger than AWG size 8 will come only as a/an _______ conductor.A. aluminumEnd of examB. coveredC. solidD. strandedarrow_forward
- Two #12 THW copper conductors and one # 12 grounding conductor are pulled in a 49'-9" run of 3/4"conduit which is available in 10' lengths. How many pieces of conduit are required?arrow_forwardAs permitted, installing cables of entirely nonmetallic sheaths into the top of a surface-mounted enclosure through one or more nonflexible raceways, the raceways shall be not less than ________ and not more than __________ in length, provided they meet all of the following conditions: Nonmetallic-sheathed cable secured within __________ in. from where it emerges from the raceway. The raceway comes out of the top of the enclosure and making sure it does not penetrate a ___________ . A fitting is needed at each end of the raceway, and it must remain accessible after the install in order to protect against _____________. Raceways must be _____________ or ___________ to prevent access into the enclosure through the raceway. The cable sheath must be ____________ and extend into the enclosure at least a _____________ in. The raceway must be _____________. When cable(s) are installed in raceways as mentioned above, what NEC Table and Chapter provide guidance on the cable fill require- ments…arrow_forwardWhat section of the Code prohibits supporting fire alarm conductors from raceways that contain light or power conductors? NEC ______.arrow_forward
- 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.arrow_forward1)Restrictions on types of conduits used for installing service, sub panel, emergency service panel. 2Requirements for underground or overhead services. 3Type of protection requirements for raceways containing conductors (i.e.conductor sizes). 4Temperature correction factors associated with installation. 8. Voltagedropconsiderationsarrow_forwardExpansion fittings and telescoping sections of metal raceways shall be made electrically continuous by _____ or other means. Select one: A. GROUNDING ELECTRODE B. GROUNDED CURRENT CARRYING CONDUCTOR C. EQUIPMENT BONDING JUMPERarrow_forward
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