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All Textbook Solutions for Residential Construction Academy: House Wiring (MindTap Course List)

In a work situation where an electricians hands get wet while operating a 120-volt, corded drill, which of the following would be true? (Objective 1-1) a. Body resistance increases, and any shock would be mild. b. Body resistance remains the same, and there is no danger as Long as rubber boots are worn. c. Body resistance is substantially decreased, and severe shock could occur. d. There is no danger as Long as a three-prong plug is used.2RQ 3RQ 4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ Directions: Circle T to indicate true statements or F to indicate false statements. The higher the resistance in an electrical circuit, the lower the amount of current that can flow in the circuit. (Objective 1-2)12RQ 13RQ 14RQ 15RQ Name the size of machine screw that is used to secure switches and receptacles to device boxes. (Objective 2-8)2RQ Describe when an electrician would use a new work box and an old work box. (Objective 2-3)Name and describe three cable types that can be used in residential electrical installations. (Objective 2-5)Name the system that is used to size the conductors used in electrical work. (Objective 2-5)6RQ Describe how an electrician can tell Type AC and Type MC cable apart. (Objective 2-5)8RQ 9RQ 10RQ Describe when three-way switches would be used in a residential Lighting circuit. (Objective 2-8)12RQ 13RQ 14RQ 15RQ 1RQ 2RQ List five guidelines for the care and safe use of electrical hand tools. (Objective 3-4)Name the three styles of screwdrivers used most often in residential electrical work. (Objective 3-1)5RQ Name the tool used to remove cartridge fuses from an electrical enclosure. (Objective 3-2)7RQ 8RQ 9RQ 10RQ 1RQ 2RQ 3RQ 4RQ List three important rules to follow in the care and maintenance of meters. (Objective 4-14)6RQ 7RQ 8RQ 9RQ 10RQ A ground resistance meter is used to determine the amount of resistance__________.(Objective 4-7) a. through a grounding electrode to the earth b. though a grounding electrode to the metal frame of an electrical cabinet c. from one end of a grounding conductor to the other end d. from a grounded conductor to the earth 12RQ 13RQ 14RQ 15RQ 1RQ 2RQ 3RQ 4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ 13RQ 14RQ 15RQ 16RQ 17RQ 18RQ 19RQ 20RQ 21RQ 22RQ 23RQ 24RQ 25RQ 26RQ 27RQ 28RQ 29RQ 30RQ 1RQ 2RQ The maximum demand for one electric range rated not over 12 kW is____________. This Information is found in NEC Table ____________. (Objective 6-7)4RQ Name the standard sizes of circuit breakers up to and including 100 amperes. This information is found in NEC NEC Section____________.(Objective 6-2)6RQ 7RQ 8RQ 9RQ 10RQ Name the ampacity for the following copper conductors according to Table 310.15(B) (16): (Objective 6-4) a. 10 AWG THW amps _____ amps b. 8 AWG THWN amps_______ amps c. 1 AWG THHN amps ______ amps d. 4/0 TW amps ______ amps 13RQ Small-appliance branch circuits and laundry branch circuits installed in a dwelling must have a rating of at least__________ amperes. This information is found in NEC Section __________. (Objective 6-2)Calculate the minimum copper conductor size needed for a 120/240-volt electric range branch circuit. The electric range has a nameplate rating of 12 kW. Show all work. (Objective 6-2)1RQ 2RQ 3RQ 4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ Describe the support requirements for service entrance cable. (Objective 7-3)14RQ 15RQ 1RQ 2RQ 3RQ 4RQ 5RQ 6RQ Describe the purpose of an LB conduit body used in a residential service entrance Installation that uses electrical conduit. (Objective 8-1)8RQ 9RQ 10RQ 11RQ If Type SER service entrance cable is used by an electrician to feed a subpanel from a main panel, the cable must be secured within _________of the panel enclosures and at Intervals not exceeding___________. Name the NEC section that states this requirement. (Objective 8-7)13RQ 14RQ 15RQ 1RQ 2RQ 3RQ The minimum amount of free conductor required at an electrical box used in residential wiring for termination purposes is______________ inches. As long as the box has no dimension Larger than 8 Inches (200 mm), there must be at Least ______ inches of free conductor extending out from the box opening. Name the NEC section that covers this wiring practice. (Objective 9-3)5RQ Describe how an insulated grounded conduct or Larger than 6 AWG is Identified. Name the NEC section that covers this wiring situation. (Objective 9-4)Describe how a white Insulated conductor in a cable assembly is reidentified as an ungrounded hot conductor. Name the NEC section that covers this wiring situation. (Objective 9-4)8RQ Describe how a conductor that is larger than 6 AWG can be identified as a grounding conductor. Name the NEC section that covers this wiring situation. (Objective 9-4)10RQ 11RQ A wall-mounted luminaire (fixture) weighing not more than_________ pounds is permitted to be supported on a device box provided the luminaire or its supporting yoke is secured to the box with no fewer than two 6-32 or Larger screws. Name the NEC section that covers this requirement. (Objective 9-5)13RQ 14RQ 15RQ 1RQ Explain the difference between new-work and old-work electrical boxes. (Objective 10-1)3RQ 4RQ Explain why it is important to have the proper setout when installing electrical boxes. (Objective 10-3)6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ 13RQ 14RQ 15RQ 1RQ 2RQ 3RQ 4RQ 5RQ 6RQ 7RQ 8RQ Although it is not a specific requirement, most electricians feel that the best place to start a cable run for a branch circuit is at the service panel or subpanel. Explain why this is so. (Objective 11-3)10RQ 11RQ 12RQ 13RQ 14RQ 15RQ 1RQ List the minimum trade size of Type EMT for each of the following applications. Assume the use of conductors with THHN insulation. (Objective 12-1) a. Six 14 AWG _______ b. Six 12 AWG ______ c. Three 10 AWG ______ d. Four 8 AWG _____3RQ 4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ 13RQ 14RQ 15RQ Explain how the NECÂ® and Underwriters Laboratories categorize general-use snap switches. (Objective 13-1)Determine the switch type and rating for a single-pole switch controlling eight 100-watt incandescent halogen Lamps in a 120-volt residential switching circuit. (Objective 13-2)Describe the type of wiring situation that would require the use of a single-pole switch. (Objective 13-4)4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ 13RQ 14RQ 15RQ 1RQ 2RQ 3RQ 4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ 13RQ 14RQ 15RQ 1RQ 2RQ 3RQ 4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ 13RQ 14RQ 15RQ The most often used category-rated UTP cable for voice and data wiring from various outlets back to the service center or other distribution device in a residential application is______. (Objective 16-3)2RQ 3RQ 4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ 13RQ 14RQ 15RQ 1RQ 2RQ 3RQ 4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ 13RQ 14RQ 15RQ 1RQ 2RQ 3RQ 4RQ 5RQ 6RQ When wiring a split-wired receptacle, it is recommended that the part of the duplex receptacle controlled by a switch be the _______half and the part that is hot at all times is the ______ half. (Objective 18-3)8RQ 9RQ 10RQ 11RQ 12RQ 13RQ The metal frame of a switch or receptacle is called a (n) ______ or ______. (Objective 18-3)15RQ 1RQ 2RQ 3RQ 4RQ 5RQ 6RQ 7RQ 8RQ 9RQ 10RQ 11RQ 12RQ 13RQ 14RQ 15RQ 1RQ 2RQ 3RQ 4RQ 5RQ 6RQ

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