Electrical Circuits and Conductors
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Questions and Answers

What is the minimum amperage rating for a 1 AWG branch circuit?

  • 600 A (correct)
  • 800 A
  • 1000 A
  • 400 A

    • What is the primary difference between a bare conductor and an insulated conductor?

  • Bare conductors have a thin insulation, while insulated conductors have a thick insulation.
  • Bare conductors are always copper, while insulated conductors are aluminum.
  • Bare conductors are used for residential, while insulated conductors are used for commercial.
  • Bare conductors have no electrical insulation, while insulated conductors have recognized insulation. (correct)

    • What is the minimum volt-amperage rating for a single receptacle outlet?

  • 180 VA (correct)
  • 200 VA
  • 120 VA
  • 150 VA

    • What is considered a continuous load in terms of maximum current?

    <p>Maximum current for 3 hours or more</p> Signup and view all the answers

    What is the minimum volt-amperage rating for each receptacle in a multiple receptacle outlet?

    <p>90 VA</p> Signup and view all the answers

    What is a requirement for the installation of conductors and equipment?

    <p>They must be installed and/or accepted only if they are approved</p> Signup and view all the answers

    What is the minimum length requirement for feeder conductors?

    <p>Less than 7.5 m (25 ft.)</p> Signup and view all the answers

    What is the minimum ampacity requirement for conductors tapped to a feeder?

    <p>At least 1/3 of the feeder conductor</p> Signup and view all the answers

    What is the purpose of a service protective device?

    <p>To provide additional protection for service-entrance conductors</p> Signup and view all the answers

    What is the maximum total length of tap conductors?

    <p>Exactly 30 m</p> Signup and view all the answers

    What type of conductors are defined as being between the service point and the first point of connection to the service-entrance conductors at the building?

    <p>Service conductors, overhead</p> Signup and view all the answers

    What is the minimum size requirement for tap conductors?

    <p>14 mm2 copper or 22 mm2 aluminum</p> Signup and view all the answers

    What is the requirement for the arrangement of 3-phase horizontal common power and vertical buses?

    <p>A, B, C from front-back, top-bottom, or left-right</p> Signup and view all the answers

    What is the maximum number of sets of service-entrance conductors that can be supplied by a service drop, set of OSC, or set of USC?

    <p>One</p> Signup and view all the answers

    What type of conduit is permitted for use in corrosive influences, cinders, wet locations, and dry and damp locations?

    <p>Reinforced Thermosetting Resin Conduit (Type RTRC)</p> Signup and view all the answers

    What is the requirement for the phase arrangement of rear-mounted units?

    <p>C, B, A from front-back, top-bottom, or left-right</p> Signup and view all the answers

    What is the purpose of a cable bus?

    <p>To securely fasten and support conductors and conductor terminations</p> Signup and view all the answers

    What is NOT a permitted use of Reinforced Thermosetting Resin Conduit (Type RTRC)?

    <p>Hazardous locations</p> Signup and view all the answers

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