NCCER Electrical Level 2 Module 5 "Pull and Junction boxes" Questions and 100% correct Answers
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Course
NCCER Electrical
Institution
NCCER Electrical
NCCER Electrical Level 2 Module 5 "Pull and Junction boxes" Questions and 100% correct Answers
Where in the NEC will you find the most information on pull and junction boxes? - ANS NEC Article 314
The combination coupling in Figure FQ01 is used to connect ___. - ANS Flexible conduit to ri...
NCCER Electrical Level 2 Module 5 "Pull
and Junction boxes" Questions and 100%
correct Answers
Where in the NEC will you find the most information on pull and junction boxes? - ANS
NEC Article 314
A
The combination coupling in Figure FQ01 is used to connect ___. - ANS Flexible
conduit to rigid conduit
VI
When calculating the pull box size for straight pulls on systems operating at 1,000V or
less, the length of the box must not be less than ______. - ANS eight times the trade
TU
diameter of the largest raceway
If the largest trade diameter of a raceway entering a pull box is 3", and it is a straight
pull for 1000V or less, the minimum size box allowed is ___. - ANS 24" 3"(8)
IS
For a STRAIGHT pull, the length of a pull box housing UNSHIELDED conductors
carrying over 1,000V must be _____. - ANS 32 times the OD of the largest conductor
OM
For a STRAIGHT pull, the length of a pull box housing SHIELDED conductors carrying
over 1,000V must be _____. - ANS 48 times the OD of the largest conductor
For an ANGLED pull, the length of a pull box hosing SHIELDED conductors carrying
NA
over 1,000V must be ____. - ANS 36 times the OD of the largest conductor
For an ANGLED pull, the length of a pull box hosing UNSHIELDED conductors carrying
over 1,000V must be ____. - ANS 24 times the OD of the largest conductor
JP
A conduit body that has openings on four different sides plus an access opening is
called a _____. - ANS Type X
Which of the following best describes how Type FS boxes should be installed? - ANS
No holes should be drilled in the box for mounting
Which of the following enclosures is best suited for splicing conductors? - ANS Mogul
, A Type T conduit body is used to provide a junction point for ____ intersecting conduits.
- ANS Three
Boxes for use in hazardous locations must be rated as ______. - ANS Explosion-proof
Box installations in concrete slabs are considered ___ locations. - ANS Wet
Conduit bodies, also called ______ provide access through a removable cover or
covers to the interior of the system. - ANS tubing
A
To distinguish between Type LL and Type LR conduit bodies, hold the fitting as if it were
a(n) ______ and see where the cover is situated. - ANS pistol
VI
For a straight pull using 600V conductors, the minimum length of the box must be at
least __ times the trade diameter of the largest raceway. - ANS 8
TU
The minimum lengths for a junction box in which the 600V conductors are pulled at an
angle and that contains two 3" conduits and one 4" conduit entering each side is ___. -
ANS 30" 6(4)+3+3=30"
IS
A(n) _____ locknut may be required if bounding jumpers are used inside of the box or
enclosure. - ANS Grounding
OM
The minimum length for a junction box with one 4" conduit on each side in which the
600V conductors are pulled straight through the box is ____. - ANS 32" 4(8)=32"
A separate portions of a conduit or tubing system that provides access through a
NA
removable cover (or covers) to the interior of the system at a junction of two or more
sections of the system or at a terminal point of the system. Boxes such as FS and FD or
larger cast or sheet metal boxes are not classified as conduit bodies. - ANS Conduit
body
JP
Designed and constructed to withstand an internal explosion without creating an
external explosion or fire. - ANS Explosion-proof
An enclosure used with underground systems to provide access for installation and
maintenance. - ANS Handhole enclosure
An enclosure where one or more raceways or cables enter, and in which electrical
conductors can be, or are, spliced. - ANS Junction box
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