Electrical Wiring: Residental - With Plans (Paperback) Package
18th Edition
ISBN: 9781305416376
Author: MULLIN
Publisher: Cengage
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Chapter 21.1, Problem 11R
To determine
Explain whether the branch circuit of waste disposer is required to be provide with AFCI protection or not.
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this is a practice question, please answer. Its not for a grade
An isolator is used to:
Select one:
a. To be mounted on towers for
insulation purpose
b. All of the above
c. to disconnect part of the system for
maintenance from live circuit
d. Insulate the wires to avoid
electrocution and short circuits
Clear my choice
1. Draw a Wiring Drawing of this circuit.
Chapter 21 Solutions
Electrical Wiring: Residental - With Plans (Paperback) Package
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- Determine whether a receptacle is required by the NEC based on the diagram and the scale. (Non Graded Assignment)arrow_forward1. A14/2 type copper used for a general lighting branch circuit. Ampacity:______________ Maximum Fuse or Circuit Breakers Sizes:________________ 2.Three 8 AWG copper conductors with THHN insulation Installed in garage in electrical metallic tubing (EMT). The ambient temperature in the garage can reach as high as 110'F. All termination points for this circuit are rated 60'C. Ampacity:______________ Maximum Fuse or Circuit Breakers Sizes:________________ 3.Four 4 AWG copper conductor with THWN insulation imstalled in EMT in a basement. All termination points are rated at 60'C. Ampacity:______________ Maximum Fuse or Circuit Breakers Sizes:________________ 4. An 8/3 Type UF copper cable installed underground from a house to a detached garage to feed a 120/240-volt subpanel. All termination points are rated at 60'C.…arrow_forwardschedules are typically provided to detail the circuits and overcurrent protection required for listribution equipment. Branch-circuit - Outlet C. d. ore distribution points for electrical in .... Switch Panelboardarrow_forward
- How many lighting branch circuits are provided in this dwelling? __________ a. What is the minimum load allowance for small-appliance circuits for dwellings? See NEC 220.52(A). __________ b. An individual 15-ampere branch circuit is run to the receptacle outlet behind the refrigerator instead of connecting it to one of the two 20-ampere small-appliance branch circuits that are required in kitchens. For this separate circuit, an additional 1500 volt-amperes (shall) (does not have to) be added to the load calculations for dwellings. (Circle the correct answer.)arrow_forwardThe NEC requires that a ____________ means be provided for standby power systems. In the case of portable gen sets, this might be as simple as pulling out the plug on the extension cord that is plugged into the receptacle on the gen set. For permanently installed standby power generators, this might be on the gen set and/or separately provided inside or outside of the home.arrow_forwardElectrical plants Define the terms "Main column ." " Line ." " Protection earth " and " Operating eartharrow_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_forward2. 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.arrow_forwardoleg is using a multimeter to test the circuit branch he's just installed. after turning off the current to the circuit at the service panel, he'll first attach one probe to the ----- in the end of the run. a. black wire b. box c. white wire d. ground wire Please answer with explanation In typing formatarrow_forward
- 4. Draw a circuit diagram that represents this wiring drawing. The components "A" and "S1" are a lamp and switch, respectively.arrow_forwardI need proper detailed answer for thisarrow_forwardQuestion 7 This question related to power system analysis. Please make sure that the solution is clear and detailed.arrow_forward
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