NCCER MODULE 6 -DEVICE BOXES,
PULL AND JUNCTION BOXES
PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED
A+
◍ the maximum weight allowed by the NEC when ceiling fans are mounted
directly to an approved, unmarked outlet box is__________.
Answer: 35 lbs
◍ square outlet boxes are available in sizes of 4" and _________.
Answer: 4 11/16"
◍ the capacity of an outlet box can be increased by using.
Answer: raised device covers
◍ a conductor under 12" long running through a box counts as two conductors.
Answer: false
◍ if the largest trade diameter of a raceway entering a pull box is 3", and it is a
straight pull, the minimum size box allowed is ______.
Answer: 24"
◍ factors to consider when installing boxes are covered in.
Answer: NEC sections 314.15 through 314.30
◍ all boxes must be sized, installed, and supported to meet the current
________ requirements.
Answer: NEC
◍ Which of the following describes a Myers-type hub?.
, Answer: A gasketed fitting with an O-ring used to provide water tight
conduit connections
◍ Which of the following conduit bodies has a single cover opening on both
sides?.
Answer: Type LRL
◍ Which of the following are used to protect conductors from being damaged
by the sharp edges of the threaded conduit end?.
Answer: Insulated bushings
◍ Which type of conduit body does not provide a change in direction but may
be used as a pulling points in a conduit run that has been totaling more than
360° ?.
Answer: Type C
◍ blank covers are used when boxes serve as ___________.
Answer: junction box
◍ Boxes must be marked with the words "danger-high voltage-keep out" if
they house conductors over.
Answer: 1000 V
◍ each conductor originating outside of the box and terminating inside of the
box counts as _________ conductors.
Answer: one
◍ when sizing outlet boxes, deduct__________ conductor(s) for each switch.
Answer: 2
◍ for a straight pull, the minimum length of the box must be at least
__________ times the trade diameter of the largest raceway..
Answer: 8
◍ the minimum length for a junction box in which the conductors are pulled at
an angle and that contains two 3" conduits and one 4" conduit entering each
side is __.
Answer: 27"
PULL AND JUNCTION BOXES
PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED
A+
◍ the maximum weight allowed by the NEC when ceiling fans are mounted
directly to an approved, unmarked outlet box is__________.
Answer: 35 lbs
◍ square outlet boxes are available in sizes of 4" and _________.
Answer: 4 11/16"
◍ the capacity of an outlet box can be increased by using.
Answer: raised device covers
◍ a conductor under 12" long running through a box counts as two conductors.
Answer: false
◍ if the largest trade diameter of a raceway entering a pull box is 3", and it is a
straight pull, the minimum size box allowed is ______.
Answer: 24"
◍ factors to consider when installing boxes are covered in.
Answer: NEC sections 314.15 through 314.30
◍ all boxes must be sized, installed, and supported to meet the current
________ requirements.
Answer: NEC
◍ Which of the following describes a Myers-type hub?.
, Answer: A gasketed fitting with an O-ring used to provide water tight
conduit connections
◍ Which of the following conduit bodies has a single cover opening on both
sides?.
Answer: Type LRL
◍ Which of the following are used to protect conductors from being damaged
by the sharp edges of the threaded conduit end?.
Answer: Insulated bushings
◍ Which type of conduit body does not provide a change in direction but may
be used as a pulling points in a conduit run that has been totaling more than
360° ?.
Answer: Type C
◍ blank covers are used when boxes serve as ___________.
Answer: junction box
◍ Boxes must be marked with the words "danger-high voltage-keep out" if
they house conductors over.
Answer: 1000 V
◍ each conductor originating outside of the box and terminating inside of the
box counts as _________ conductors.
Answer: one
◍ when sizing outlet boxes, deduct__________ conductor(s) for each switch.
Answer: 2
◍ for a straight pull, the minimum length of the box must be at least
__________ times the trade diameter of the largest raceway..
Answer: 8
◍ the minimum length for a junction box in which the conductors are pulled at
an angle and that contains two 3" conduits and one 4" conduit entering each
side is __.
Answer: 27"
