COMMERCIAL AND INDUSTRIAL ELECTRICAL
WIRING|ACTUAL EXAM QUESTIONS AND 100%
CORRECT ANSWERS|LATEST 2025/2026|GRADED
A+
360 degrees - ANSWER- The maximum amount of bend angles between pull points in
a conduit run cannot exceed_____.
Chase nipple - ANSWER- A ___ is a conduit fitting that is used to couple boxes back to
back
Cabinet - ANSWER- A _____ is a flush or surface mounted enclosure used for housing
electrical components, devices, and conductor connections.
18, 48 - ANSWER- If project documentation is not available, the standard mounting
height used for receptacles is____", and for wall switches the height is ___".
Bonding jumpers - ANSWER- ____ Are used to ground metal components and devices
to protect personnel from electrical shock.
Volume allowance - ANSWER- ____ Is a fill volume assigned to a conductor, clamp,
support sitting, or device in a box as specified by the NEC
Six - ANSWER- For an angle pull, the minimum size pull box or junction box is
determined by multiplying the largest conduit trade size dimension by____ and adding the
trade size of each of the other conduits to get the minimum pull box or junction box
dimensions
Rain proof - ANSWER- A ____ enclosure is an enclosure in which a beating rain cannot
interfere with the operation of the apparatus or result in wetting of live parts in wiring
within the enclosure
, Handy - ANSWER- A utility box is an electrical box with rounded corners that is
commonly referred to as a ____ box.
10 - ANSWER- A power panel uses ____% or less of it overcurrent devices to supply
lighting an appliance branch circuits.
Galvanized - ANSWER- ____ Sheet-metal boxes are the most commonly used boxes in
industrial and commercial applicants
The type of equipment the enclosure can house - ANSWER- Enclosures can be
classified by method of enclosure mounting, method of enclosure door mounting, and
_____.
Fill - ANSWER- Box _____ is the volume occupied by conductors, components, and
devices.
Driptight - ANSWER- A ____ enclosure is an enclosure that does not allow falling
moisture or dirt to enter the enclosure.
3 - ANSWER- There must be a minimum workspace of ____' near an enclosure.
Cable clamps - ANSWER- Cables routed to enclosures must be secured through the
use of _____.
EGC - ANSWER- If a ____ is not attached to the box for bonding purposes, there is
potential for shock and fire hazards.
Seals - ANSWER- Unused knock out openings must be plugged with___.
WIRING|ACTUAL EXAM QUESTIONS AND 100%
CORRECT ANSWERS|LATEST 2025/2026|GRADED
A+
360 degrees - ANSWER- The maximum amount of bend angles between pull points in
a conduit run cannot exceed_____.
Chase nipple - ANSWER- A ___ is a conduit fitting that is used to couple boxes back to
back
Cabinet - ANSWER- A _____ is a flush or surface mounted enclosure used for housing
electrical components, devices, and conductor connections.
18, 48 - ANSWER- If project documentation is not available, the standard mounting
height used for receptacles is____", and for wall switches the height is ___".
Bonding jumpers - ANSWER- ____ Are used to ground metal components and devices
to protect personnel from electrical shock.
Volume allowance - ANSWER- ____ Is a fill volume assigned to a conductor, clamp,
support sitting, or device in a box as specified by the NEC
Six - ANSWER- For an angle pull, the minimum size pull box or junction box is
determined by multiplying the largest conduit trade size dimension by____ and adding the
trade size of each of the other conduits to get the minimum pull box or junction box
dimensions
Rain proof - ANSWER- A ____ enclosure is an enclosure in which a beating rain cannot
interfere with the operation of the apparatus or result in wetting of live parts in wiring
within the enclosure
, Handy - ANSWER- A utility box is an electrical box with rounded corners that is
commonly referred to as a ____ box.
10 - ANSWER- A power panel uses ____% or less of it overcurrent devices to supply
lighting an appliance branch circuits.
Galvanized - ANSWER- ____ Sheet-metal boxes are the most commonly used boxes in
industrial and commercial applicants
The type of equipment the enclosure can house - ANSWER- Enclosures can be
classified by method of enclosure mounting, method of enclosure door mounting, and
_____.
Fill - ANSWER- Box _____ is the volume occupied by conductors, components, and
devices.
Driptight - ANSWER- A ____ enclosure is an enclosure that does not allow falling
moisture or dirt to enter the enclosure.
3 - ANSWER- There must be a minimum workspace of ____' near an enclosure.
Cable clamps - ANSWER- Cables routed to enclosures must be secured through the
use of _____.
EGC - ANSWER- If a ____ is not attached to the box for bonding purposes, there is
potential for shock and fire hazards.
Seals - ANSWER- Unused knock out openings must be plugged with___.
