NFPA 70E Exam 2025 Questions and
Answers
Arrangement of 70E - ANSWER✔✔-Introduction (Article 90)
Chapter 1 Safety Related Work Practices
Chapter 2 Safety Related Maintenance Requirements
Chapter 3 Safety Requirements for Special Equipment
Annexes (Article 350)
Arc Flash Hazard - ANSWER✔✔-A dangerous condition associated with the possible release of
energy caused by an electric arc
Arc Rating - ANSWER✔✔-The value attributed to materials that describes their performance to
exposure to an electrical arc discharge. The arc rating is expressed in cal/cm^2 and is derived from
the determined value of the arc thermal performance value (ATPV) or energy of breakopen
threshold (E BT) (should a material system exhibit a breakopen resoponce below the APTV value).
Arc rating is reported as either APTV or E bt, whichever is the lower value.
Barricade - ANSWER✔✔-A physical obstruction such as tapes, cones, or A-frame-type wood or
metal structures intended to provide a warning and to limit access.
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, Barrier - ANSWER✔✔-A physical obstruction that is intended to prevent contact with equipment
or energized electrical conductors and circuit parts or to prevent unauthorized access to a work area.
Shock boundaries - ANSWER✔✔-Limited approach boundary,
Restricted approach boundary,
Prohibited approach boundary (not in 2015)
Limited approach boundary - ANSWER✔✔-An approach limit at a distance from an exposed
energized electrical conductor or circtuit part within which a shock hazard exists.
Restricted approach boundary - ANSWER✔✔-An approach limit at a distance from an exposed
energized electrical conductor or circuit part within which there is an increased likelihood of electric
shock, due to electrical arc-over combined with inadvertent movement, for personnel working in
close proximity to the energized electrical conductor or circuit part.
Arc Flash Boundary - ANSWER✔✔-When an arc flash hazard exists, an approach limit at a
distance from a prospective arc source within which a person could receive a second degree burn if
an electrical arc flash were to occur.
Electrically safe work condition - ANSWER✔✔-A state in which an electrical conductor or circuit
part has been disconnected from energized parts, locked/tagged in accordance with established
standards, tested to ensure the absence of voltage, and grounded if determined necessary.
Hazard - ANSWER✔✔-A source of possible injury or damage to health
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
Answers
Arrangement of 70E - ANSWER✔✔-Introduction (Article 90)
Chapter 1 Safety Related Work Practices
Chapter 2 Safety Related Maintenance Requirements
Chapter 3 Safety Requirements for Special Equipment
Annexes (Article 350)
Arc Flash Hazard - ANSWER✔✔-A dangerous condition associated with the possible release of
energy caused by an electric arc
Arc Rating - ANSWER✔✔-The value attributed to materials that describes their performance to
exposure to an electrical arc discharge. The arc rating is expressed in cal/cm^2 and is derived from
the determined value of the arc thermal performance value (ATPV) or energy of breakopen
threshold (E BT) (should a material system exhibit a breakopen resoponce below the APTV value).
Arc rating is reported as either APTV or E bt, whichever is the lower value.
Barricade - ANSWER✔✔-A physical obstruction such as tapes, cones, or A-frame-type wood or
metal structures intended to provide a warning and to limit access.
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
, Barrier - ANSWER✔✔-A physical obstruction that is intended to prevent contact with equipment
or energized electrical conductors and circuit parts or to prevent unauthorized access to a work area.
Shock boundaries - ANSWER✔✔-Limited approach boundary,
Restricted approach boundary,
Prohibited approach boundary (not in 2015)
Limited approach boundary - ANSWER✔✔-An approach limit at a distance from an exposed
energized electrical conductor or circtuit part within which a shock hazard exists.
Restricted approach boundary - ANSWER✔✔-An approach limit at a distance from an exposed
energized electrical conductor or circuit part within which there is an increased likelihood of electric
shock, due to electrical arc-over combined with inadvertent movement, for personnel working in
close proximity to the energized electrical conductor or circuit part.
Arc Flash Boundary - ANSWER✔✔-When an arc flash hazard exists, an approach limit at a
distance from a prospective arc source within which a person could receive a second degree burn if
an electrical arc flash were to occur.
Electrically safe work condition - ANSWER✔✔-A state in which an electrical conductor or circuit
part has been disconnected from energized parts, locked/tagged in accordance with established
standards, tested to ensure the absence of voltage, and grounded if determined necessary.
Hazard - ANSWER✔✔-A source of possible injury or damage to health
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
