ELECTRICAL SAFETY TEST #4 EXAM
QUESTIONS AND ANSWERS 100% PASS
2026 UPDATE.
Limited approach boundary - ANS An unqualified person may cross the _____ only if they are
advised of the specific hazards and are continuously escorted by a qualified person.
42 - ANS The limited approach boundary for a 480 V circuit is _____".
S-5 - ANS Per OSHA, clearance (safe approach) distances for qualified employees working on
or near exposed energized electrical conductors or circuit parts can be determined by using
table _____.
130.4(D)(b) - ANS Approach boundaries for DC voltages are determined by using NFPA 70E
Table
maximum total clearing time of the overcurrent protective device - ANS The primary factor
that determines the arc flash boundary is the _____.
clearing time - ANS The short-circuit current and _____ determine the incident energy for
systems less than 600 V.
False - ANS True or False? The approach distances listed in OSHA Table S-5 are only used for
energized overhead power lines
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS AND ANSWERS 100% PASS
2026 UPDATE.
Limited approach boundary - ANS An unqualified person may cross the _____ only if they are
advised of the specific hazards and are continuously escorted by a qualified person.
42 - ANS The limited approach boundary for a 480 V circuit is _____".
S-5 - ANS Per OSHA, clearance (safe approach) distances for qualified employees working on
or near exposed energized electrical conductors or circuit parts can be determined by using
table _____.
130.4(D)(b) - ANS Approach boundaries for DC voltages are determined by using NFPA 70E
Table
maximum total clearing time of the overcurrent protective device - ANS The primary factor
that determines the arc flash boundary is the _____.
clearing time - ANS The short-circuit current and _____ determine the incident energy for
systems less than 600 V.
False - ANS True or False? The approach distances listed in OSHA Table S-5 are only used for
energized overhead power lines
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
