Page 1
,COMMERCIAL ELECTRICAL CODE 2026!
Equipment designed to open circuits under fault conditions shall have an interrupting
rating not less than the available voltage and circuit current at the line side of the
equipment.
✓ Correct ans-t
Wet locations are subject to moderate degrees of moisture, but are generally out of
the weather.
✓ F
A short circuit is the unintentional connection of two ungrounded conductors that
have a potential difference between them.
✓ t
The NEC ® is revised and updated every six years.
✓ f
At least two entrances to electrical rooms shall be provided to give access to the
working space about all electrical equipment rated less than 1200 A.
✓ f
The basic rule when selecting termination devices is to always use a termination
device identified for the type of conductor material.
Page 2
, ✓ t
Explanatory material appears in the NEC ® in Informational Notes.
✓ t
The minimum headroom of working spaces above electrical equipment in commercial
buildings is 6 1/2'.
✓ f
Electric equipment with ventilating openings shall be installed so that openings are
not obstructed to prevent the free circulation of air.
✓ t
The NEC ® may be used as a design specification by qualified persons.
✓ f
The first ___ chapters of the NEC ® apply generally unless they are modified by the
latter chapters.
✓ 4
Chapter ___ of the NEC ® is independent of the other chapters, and none of the
provisions apply unless they are directly referenced.
✓ 8
Page 3
, Equipment that is required to be readily accessible shall be capable of being reached
quickly without the use of tools, with an exception for ___.
✓ keys
A conductor's ___ is the amount of amperes it can carry continuously without
exceeding its temperature rating.
✓ ampacity
Boxes installed within walls that are required to be taken down to gain access are not
considered ___.
✓ accessible
The word ___ indicates that an NEC ® rule is mandatory.
✓ shall
The two-fold purpose of the NEC ® is to protect ___ from the hazards associated with
the use of electricity.
✓ persons and property
Most voltages referenced in the NEC ® are ___ voltages.
✓ nominal
Page 4
,COMMERCIAL ELECTRICAL CODE 2026!
Equipment designed to open circuits under fault conditions shall have an interrupting
rating not less than the available voltage and circuit current at the line side of the
equipment.
✓ Correct ans-t
Wet locations are subject to moderate degrees of moisture, but are generally out of
the weather.
✓ F
A short circuit is the unintentional connection of two ungrounded conductors that
have a potential difference between them.
✓ t
The NEC ® is revised and updated every six years.
✓ f
At least two entrances to electrical rooms shall be provided to give access to the
working space about all electrical equipment rated less than 1200 A.
✓ f
The basic rule when selecting termination devices is to always use a termination
device identified for the type of conductor material.
Page 2
, ✓ t
Explanatory material appears in the NEC ® in Informational Notes.
✓ t
The minimum headroom of working spaces above electrical equipment in commercial
buildings is 6 1/2'.
✓ f
Electric equipment with ventilating openings shall be installed so that openings are
not obstructed to prevent the free circulation of air.
✓ t
The NEC ® may be used as a design specification by qualified persons.
✓ f
The first ___ chapters of the NEC ® apply generally unless they are modified by the
latter chapters.
✓ 4
Chapter ___ of the NEC ® is independent of the other chapters, and none of the
provisions apply unless they are directly referenced.
✓ 8
Page 3
, Equipment that is required to be readily accessible shall be capable of being reached
quickly without the use of tools, with an exception for ___.
✓ keys
A conductor's ___ is the amount of amperes it can carry continuously without
exceeding its temperature rating.
✓ ampacity
Boxes installed within walls that are required to be taken down to gain access are not
considered ___.
✓ accessible
The word ___ indicates that an NEC ® rule is mandatory.
✓ shall
The two-fold purpose of the NEC ® is to protect ___ from the hazards associated with
the use of electricity.
✓ persons and property
Most voltages referenced in the NEC ® are ___ voltages.
✓ nominal
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