Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 23.1, Problem 4R
There are two basic voltage classifications for thermostats. What are they? ___________
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Direction. Answer each problem and show your solutions cleanly and clearly. Draw diagrams._______________________________________________________________________________________________________________________
6.a. Extreme _______ may cause some nonmetallic conduits to become brittle and therefore moresusceptible to damage from physical contact.A. coldB. corrosionC. voltageD. heat6.b. Snap switches are permitted to be grouped or ganged in an enclosure provided the voltage between theadjacent snap switches does not exceed ___ V.A. 400B. 300C. 200D. 100
Chapter 23 Solutions
Electrical Wiring Residential
Ch. 23.1 - a. What is the allowance in watts made for...Ch. 23.1 - What are some of the advantages of electric...Ch. 23.1 - List the different types of electric heating...Ch. 23.1 - There are two basic voltage classifications for...Ch. 23.1 - What device is required when the total connected...Ch. 23.1 - Prob. 6RCh. 23.1 - Prob. 7RCh. 23.1 - A certain type of control connects electric...Ch. 23.1 - What advantages does a 240-volt heating unit have...Ch. 23.1 - The white wire of a cable may be used to connect...
Ch. 23.1 - Receptacle outlets furnished as part of a...Ch. 23.1 - The branch circuit supplying a fixed electric...Ch. 23.1 - Prob. 13RCh. 23.1 - For ballpark calculations, the wattage output of a...Ch. 23.1 - A central electric furnace heating system is...Ch. 23.1 - What section of the Code provides the correct...Ch. 23.1 - Electric heating cable embedded in plaster, or...Ch. 23.2 - Prob. 1RCh. 23.2 - Prob. 2RCh. 23.2 - Prob. 3RCh. 23.2 - a. Must an air conditioner installed in a window...Ch. 23.2 - Prob. 5RCh. 23.2 - What is the Code requirement for receptacles...Ch. 23.2 - Prob. 7RCh. 23.2 - When the nameplate on an air-conditioning unit...Ch. 23.2 - Prob. 9RCh. 23.2 - Match the following terms with the statement that...Ch. 23.2 - The disconnect for an air conditioner or heat pump...
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- 1. 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_forward___________ is an Area on a device characteristic where the ratio between applied voltage and resulting current is constant.arrow_forwardKVLLoop abfea: __________________________________________________Loop cdhgc: __________________________________________________Loop bcgfb: ___________________________________________________arrow_forward
- Electro Fans has just received an order for onethousand 20-inch fans due week 7. Each fan consists of ahousing assembly, two grills, a fan assembly, and an electricalunit. The housing assembly consists of a frame, two supports,and a handle. The fan assembly consists of a hub and fiveblades. The electrical unit consists of a motor, a switch, anda knob. The following table gives lead times, on-hand inventory, and scheduled receipts.a) Construct a product structure.b) Construct a time-phased product structure.c) Prepare a net material requirements plan.arrow_forwardThe symbol for a thermostat consists of a ____ with a T in the middle.arrow_forwardiF AN AMMETER WAS CONNECTED BETWEEN SWITCH1 AND POTENTIOMETER R1, HOW MUCH CURRENT WOULD IT INDICATE AT E(min) and E(max) IE(min)=__________________________mAdc IE(max)=__________________________mAdcarrow_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_forwardFollow the procedures in troubleshooting the defects and faults of an electric fan by filling in the missing steps.Doesn't rotate 1.___________ 2.____________ Check for Open AC cord or wiring3. ___________4.___________ Defective switch/electronic system control 5. _____________Defective module (system control).arrow_forwardThree types of electric devices A, B, and C are connected in series across a 115-volt a-c source, and the voltage drops across the individual units are equal. If Eв leads EA by 90 electrical! degrees_____Ec______behind Ex by 90 electrical degrees, what are the emfs across A,B,and C?arrow_forward
- Grounding Lighting Fixtures. There are specific requirements for grounding lighting fixtures. How must they be grounded and with what size conductors? Be sure and cite the code in your answers.arrow_forwardAnswer each problem and show your solutions cleanly and clearly. Draw diagrams.__________________________________________________________________________________________________________arrow_forwardElectrical Engineering Give correct answer UPSs measured in ____________ and ______________. __________________ are what your system uses and ____________________________ are what UPS can deliver in a perfect world.arrow_forward
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