NCCER MODULE 6 -DEVICE BOXES,
PULL AND JUNCTION BOXES
CERTIFICATION SCRIPT 2026
QUESTIONS WITH SOLUTIONS
GRADED A+
◍ Boxes must be sized, installed, and supported to meet current
NECSuperscript requirements..
Answer: True
◍ The standard width of an octagon box is _____ inches..
Answer: 4
◍ A device box is most likely to be found in a _____..
Answer: residence
◍ Boxes being installed in the wash bay of a car wash must be considered to
be in a damp location..
Answer: False
◍ The maximum depth of a square box (without an extension) is _____
inches..
Answer: 2 1/8
◍ Outlet Boxes.
Answer: Boxes that must be properly selected for the application, sized, and
installed correctly to minimize costs and ensure safety.
◍ NEC Section 314.17(A).
Answer: Regulation that requires all openings in outlet boxes to be closed.
, ◍ Which of the following devices does not result in a conductor deduction in
an outlet box?.
Answer: Grounding clip
◍ Identifying Boxes.
Answer: The process of recognizing the appropriate box type and its
applications.
◍ Materials for Boxes.
Answer: Boxes are typically constructed of steel, cast iron, aluminum, brass,
or nonmetallic materials such as fiberglass-reinforced polyester.
◍ Ceiling Boxes.
Answer: Boxes that must be attached to a structural member of the building
and rated for the weight of the attached fixture.
◍ A grounding conductor entering an outlet box results in the deduction of
_____ conductor(s)..
Answer: 1
◍ Octagon and Round Boxes.
Answer: Boxes used for wall-mounting lighting fixtures (luminaires).
◍ Extension Rings.
Answer: Used where necessary to add to capacity or bring the box flush with
the finished surface.
◍ Two cable clamps inside an outlet box results in the deduction of _____
conductor(s)..
Answer: 1
◍ Fixture Hangers.
Answer: Devices used to support a fixture between two ceiling joists.
◍ Wire Termination Space.
Answer: Space included in some fixtures that allows use with shallow
ceiling boxes supported by a joist.
◍ Pull boxes should be large enough so that workers can get their hands inside
PULL AND JUNCTION BOXES
CERTIFICATION SCRIPT 2026
QUESTIONS WITH SOLUTIONS
GRADED A+
◍ Boxes must be sized, installed, and supported to meet current
NECSuperscript requirements..
Answer: True
◍ The standard width of an octagon box is _____ inches..
Answer: 4
◍ A device box is most likely to be found in a _____..
Answer: residence
◍ Boxes being installed in the wash bay of a car wash must be considered to
be in a damp location..
Answer: False
◍ The maximum depth of a square box (without an extension) is _____
inches..
Answer: 2 1/8
◍ Outlet Boxes.
Answer: Boxes that must be properly selected for the application, sized, and
installed correctly to minimize costs and ensure safety.
◍ NEC Section 314.17(A).
Answer: Regulation that requires all openings in outlet boxes to be closed.
, ◍ Which of the following devices does not result in a conductor deduction in
an outlet box?.
Answer: Grounding clip
◍ Identifying Boxes.
Answer: The process of recognizing the appropriate box type and its
applications.
◍ Materials for Boxes.
Answer: Boxes are typically constructed of steel, cast iron, aluminum, brass,
or nonmetallic materials such as fiberglass-reinforced polyester.
◍ Ceiling Boxes.
Answer: Boxes that must be attached to a structural member of the building
and rated for the weight of the attached fixture.
◍ A grounding conductor entering an outlet box results in the deduction of
_____ conductor(s)..
Answer: 1
◍ Octagon and Round Boxes.
Answer: Boxes used for wall-mounting lighting fixtures (luminaires).
◍ Extension Rings.
Answer: Used where necessary to add to capacity or bring the box flush with
the finished surface.
◍ Two cable clamps inside an outlet box results in the deduction of _____
conductor(s)..
Answer: 1
◍ Fixture Hangers.
Answer: Devices used to support a fixture between two ceiling joists.
◍ Wire Termination Space.
Answer: Space included in some fixtures that allows use with shallow
ceiling boxes supported by a joist.
◍ Pull boxes should be large enough so that workers can get their hands inside
