NFPA 70E Electrical Safety Exam 2026 Questions & Verified Answers
Workplace Electrical Safety Prep
Section 1: Fundamentals & Key Definitions (Q1–20)
1. What is the primary scope of NFPA 70E?
a) Electrical equipment installation
b) Electrical safety in the workplace
c) Power generation standards
d) Building wiring codes
Answer: b) Electrical safety in the workplace
Rationale: NFPA 70E is the Standard for Electrical Safety in the Workplace,
addressing shock, arc flash, and arc blast hazards.
2. Which of the following is NOT an electrical hazard recognized by NFPA 70E?
a) Shock
,b) Arc flash
c) Arc blast
d) Static discharge
Answer: d) Static discharge
Rationale: NFPA 70E focuses on shock, arc flash (thermal), and arc blast (pressure
wave).
3. A “qualified person” must have:
a) 10 years of experience
b) Training to recognize and avoid electrical hazards
c) A master electrician license
d) Completion of an online safety course
Answer: b) Training to recognize and avoid electrical hazards
Rationale: Qualified means demonstrable skills and knowledge of electrical
hazards and safe work practices.
4. An “unqualified person” may cross the limited approach boundary if:
a) They wear arc flash PPE
,b) They are escorted by a qualified person
c) The voltage is below 120V
d) Never
Answer: b) They are escorted by a qualified person
Rationale: Unqualified persons require continuous escort within the limited
approach boundary.
5. The arc flash boundary is the distance at which incident energy equals:
a) 0.5 cal/cm²
b) 1.2 cal/cm²
c) 5.0 cal/cm²
d) 40 cal/cm²
Answer: b) 1.2 cal/cm²
Rationale: 1.2 cal/cm² is the onset of second-degree burn (curable burn injury).
6. Which boundary requires shock PPE (rubber gloves, insulated tools)?
a) Limited approach boundary
, b) Arc flash boundary
c) Restricted approach boundary
d) Property boundary
Answer: c) Restricted approach boundary
Rationale: Crossing restricted approach requires shock protection because of
potential arc-over or contact.
7. The hierarchy of risk controls places elimination:
a) Least effective
b) Most effective
c) Equal to PPE
d) After administrative controls
Answer: b) Most effective
Rationale: Elimination (de-energizing) removes the hazard entirely.
8. What is the first step before performing any electrical work?
a) Don arc flash PPE
Workplace Electrical Safety Prep
Section 1: Fundamentals & Key Definitions (Q1–20)
1. What is the primary scope of NFPA 70E?
a) Electrical equipment installation
b) Electrical safety in the workplace
c) Power generation standards
d) Building wiring codes
Answer: b) Electrical safety in the workplace
Rationale: NFPA 70E is the Standard for Electrical Safety in the Workplace,
addressing shock, arc flash, and arc blast hazards.
2. Which of the following is NOT an electrical hazard recognized by NFPA 70E?
a) Shock
,b) Arc flash
c) Arc blast
d) Static discharge
Answer: d) Static discharge
Rationale: NFPA 70E focuses on shock, arc flash (thermal), and arc blast (pressure
wave).
3. A “qualified person” must have:
a) 10 years of experience
b) Training to recognize and avoid electrical hazards
c) A master electrician license
d) Completion of an online safety course
Answer: b) Training to recognize and avoid electrical hazards
Rationale: Qualified means demonstrable skills and knowledge of electrical
hazards and safe work practices.
4. An “unqualified person” may cross the limited approach boundary if:
a) They wear arc flash PPE
,b) They are escorted by a qualified person
c) The voltage is below 120V
d) Never
Answer: b) They are escorted by a qualified person
Rationale: Unqualified persons require continuous escort within the limited
approach boundary.
5. The arc flash boundary is the distance at which incident energy equals:
a) 0.5 cal/cm²
b) 1.2 cal/cm²
c) 5.0 cal/cm²
d) 40 cal/cm²
Answer: b) 1.2 cal/cm²
Rationale: 1.2 cal/cm² is the onset of second-degree burn (curable burn injury).
6. Which boundary requires shock PPE (rubber gloves, insulated tools)?
a) Limited approach boundary
, b) Arc flash boundary
c) Restricted approach boundary
d) Property boundary
Answer: c) Restricted approach boundary
Rationale: Crossing restricted approach requires shock protection because of
potential arc-over or contact.
7. The hierarchy of risk controls places elimination:
a) Least effective
b) Most effective
c) Equal to PPE
d) After administrative controls
Answer: b) Most effective
Rationale: Elimination (de-energizing) removes the hazard entirely.
8. What is the first step before performing any electrical work?
a) Don arc flash PPE
