Electrical Safety in Wet Locations
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Questions and Answers

Which of the following is the correct equation for determining the required gutter width, G1, based on conductors M?

  • G1 = 6 AWG
  • G1 = 6 inches (correct)
  • G1 = 1 AWG
  • G1 = 4/0 AWG

    • What is the required gutter width, G2, based on conductors BC2?

  • G2 = 6 inches
  • G2 = 1 AWG
  • G2 = 1½ inches (correct)
  • G2 = 4/0 AWG

    • What is the required gutter width, G4, based on conductor N?

  • G4 = 1 AWG
  • G4 = 4/0 AWG
  • G4 = 6 inches
  • G4 = 4 inches (correct)

    • According to the text, what is the required gutter width for T2 based on conductors BC2?

    <p>3 inches</p> Signup and view all the answers

    What is the required gutter width for T3 based on conductors BC3?

    <p>4 inches</p> Signup and view all the answers

    According to Table 312.6(B), Note 2, which type of removable terminal wire connectors are permitted to have a reduction in bending space?

    <p>Both compression type and set-screw type</p> Signup and view all the answers

    What is the maximum percentage of the cross-sectional area of the wiring space that can be occupied by all conductors, splices, taps, and equipment according to 312.8(B)(2)?

    <p>75%</p> Signup and view all the answers

    According to the text, what is the minimum insulation temperature rating required for conductors used exclusively for control or instrumentation circuits?

    <p>90°C</p> Signup and view all the answers

    According to the text, what is the maximum distance at which the conductors used for control or instrumentation circuits should be secured?

    <p>250 mm (10 in.)</p> Signup and view all the answers

    According to the text, what is the minimum thickness of metal enclosures constructed of sheet steel?

    <p>1.35 mm (0.053 in.) uncoated</p> Signup and view all the answers

    According to the text, what is the minimum airspace required between the base of a device and the wall of any metal cabinet or cutout box?

    <p>1.59 mm (0.0625 in.)</p> Signup and view all the answers

    According to the given text, what is the volume of the masonry box/gang with dimensions of 95 × 50 × 65 (33⁄4 × 2 × 21⁄2)?

    <p>3575 cubic units</p> Signup and view all the answers

    Based on the provided information, what is the depth of the FS * single cover/gang with a volume of 295 cubic units and a length of 18.0?

    <p>14.5 units</p> Signup and view all the answers

    According to the given text, what is the total volume of all the boxes with dimensions 100 × 54 × 38 (4 × 21⁄8 × 11⁄2), 100 × 54 × 48 (4 × 21⁄8 × 17⁄8), and 100 × 54 × 54 (4 × 21⁄8 × 21⁄8)?

    <p>296,400 cubic units</p> Signup and view all the answers

    According to Table 312.6(B)(2), what is the minimum wire-bending space for 2/0 AWG conductors at terminals with 4 or more wires?

    <p>114 mm</p> Signup and view all the answers

    According to the text, what is the maximum number of conductors that can be arranged in a 100 x 32 mm (4 x 1¼ in.) metal box?

    <p>7</p> Signup and view all the answers

    When does Exception No. 1 apply for conductors entering or leaving an enclosure through the wall opposite its terminal?

    <p>When the conductor enters or leaves the enclosure where the gutter joins an adjacent gutter</p> Signup and view all the answers

    According to the text, what is the minimum volume for conduit bodies?

    <p>205 cm3 (12.5 in.3)</p> Signup and view all the answers

    What is the maximum offset allowed for a conductor not larger than 350 kcmil entering or leaving an enclosure containing only a meter socket(s)?

    <p>50 percent of the bending space specified in Table 312.6(A)</p> Signup and view all the answers

    According to the text, what is the volume of a 75 x 50 x 38 mm (3 x 2 x 1½ in.) device box?

    <p>123 cm3 (7.5 in.3)</p> Signup and view all the answers

    What is the minimum wire-bending space at terminals for 4/0 AWG conductors with 3 wires?

    <p>178 mm</p> Signup and view all the answers

    According to the text, what is the maximum number of conductors that can be arranged in a 120 x 54 mm (4⅝ x 2⅛ in.) square box?

    <p>20</p> Signup and view all the answers

    According to the text, what is the purpose of back-wiring spaces or side-wiring spaces in cabinets and cutout boxes?

    <p>To provide additional space for conductors</p> Signup and view all the answers

    According to the text, when are side-wiring spaces, side gutters, or side-wiring compartments of cabinets and cutout boxes not required to be made tight enclosures?

    <p>When they contain only conductors that enter the cabinet directly opposite to the devices where they terminate</p> Signup and view all the answers

    According to the text, what type of boxes are not classified as conduit bodies?

    <p>Cast metal, sheet metal, nonmetallic, and other boxes such as FS, FD, and larger boxes</p> Signup and view all the answers

    According to the text, what is the maximum length allowed for screws or other fasteners penetrating the wall of a box exceeding 1650 cm3 (100 in.3)?

    <p>6 mm (1⁄4 in.)</p> Signup and view all the answers

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