Commercial Wiring Ch 1 & 2 Exam
Questions & Answers (Grade A+)
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 answer ✅t
Wet locations are subject to moderate degrees of moisture, but are
generally out of the weather. -
correct answer ✅f
A short circuit is the unintentional connection of two ungrounded
conductors that have a potential difference between them. -
correct answer ✅t
The NEC ® is revised and updated every six years. -
correct answer ✅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. -
correct answer ✅f
, Commercial Wiring Ch 1 & 2 Exam
Questions & Answers (Grade A+)
The basic rule when selecting termination devices is to always use a
termination device identified for the type of conductor material. -
correct answer ✅t
Explanatory material appears in the NEC ® in Informational Notes. -
correct answer ✅t
The minimum headroom of working spaces above electrical
equipment in commercial buildings is 6 1/2'. -
correct answer ✅f
Electric equipment with ventilating openings shall be installed so
that openings are not obstructed to prevent the free circulation of
air. -
correct answer ✅t
The NEC ® may be used as a design specification by qualified
persons. -
correct answer ✅f
Questions & Answers (Grade A+)
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 answer ✅t
Wet locations are subject to moderate degrees of moisture, but are
generally out of the weather. -
correct answer ✅f
A short circuit is the unintentional connection of two ungrounded
conductors that have a potential difference between them. -
correct answer ✅t
The NEC ® is revised and updated every six years. -
correct answer ✅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. -
correct answer ✅f
, Commercial Wiring Ch 1 & 2 Exam
Questions & Answers (Grade A+)
The basic rule when selecting termination devices is to always use a
termination device identified for the type of conductor material. -
correct answer ✅t
Explanatory material appears in the NEC ® in Informational Notes. -
correct answer ✅t
The minimum headroom of working spaces above electrical
equipment in commercial buildings is 6 1/2'. -
correct answer ✅f
Electric equipment with ventilating openings shall be installed so
that openings are not obstructed to prevent the free circulation of
air. -
correct answer ✅t
The NEC ® may be used as a design specification by qualified
persons. -
correct answer ✅f
