NFPA 70E Electrical Safety in the
Workplace Exam Questions and Correct
Answers (Verified Answers) Plus Rationale
2027 Q&A| Instant Download Pdf
1. What is the primary purpose of NFPA 70E?
A. To establish electrical equipment manufacturing standards
B. To provide requirements for safe work practices that protect workers
from electrical hazards
C. To replace the National Electrical Code
D. To regulate utility electricity rates
Answer: B. To provide requirements for safe work practices that
protect workers from electrical hazards
Rationale: NFPA 70E focuses on electrical safety in the workplace. It
establishes safe work practices, procedures, and requirements
intended to reduce exposure to hazards such as electric shock, arc
flash, and arc blast.
,2. Which of the following is considered an electrical hazard addressed
by NFPA 70E?
A. Electric shock
B. Arc flash
C. Arc blast
D. All of the above
Answer: D. All of the above
Rationale: Electrical work can expose employees to multiple hazards.
NFPA 70E addresses shock and arc-flash hazards and recognizes the
associated thermal, pressure, and other effects that can result from
electrical incidents.
3. What is the preferred method for protecting workers from
electrical hazards?
A. Wearing additional personal protective equipment
B. Establishing an electrically safe work condition
C. Working faster
D. Using insulated tools only
Answer: B. Establishing an electrically safe work condition
,Rationale: NFPA 70E places the highest emphasis on eliminating the
electrical hazard when feasible. Establishing an electrically safe work
condition removes electrical energy from the work area and is
generally preferable to relying solely on PPE.
4. Before establishing an electrically safe work condition, what should
be done first?
A. Select an arc-rated face shield
B. Identify and locate all possible sources of electrical supply
C. Begin testing the circuit
D. Remove all PPE
Answer: B. Identify and locate all possible sources of electrical supply
Rationale: A circuit cannot be safely de-energized unless all sources of
electrical energy are identified. This includes normal supplies and
possible alternate or backfeed sources.
5. Which condition best describes an electrically safe work condition?
A. Equipment is switched off at a control panel
B. Equipment is disconnected from all sources, properly locked/tagged,
and verified de-energized
, C. Equipment is operating at reduced voltage
D. Equipment has a warning label attached
Answer: B. Equipment is disconnected from all sources, properly
locked/tagged, and verified de-energized
Rationale: Simply switching equipment off does not necessarily make
it electrically safe. An electrically safe work condition requires
appropriate disconnecting, locking/tagging, absence-of-voltage
verification, and control of stored or induced energy.
6. What is the purpose of lockout/tagout procedures?
A. To make equipment easier to maintain
B. To prevent unexpected energization or startup of equipment
C. To increase electrical system capacity
D. To identify equipment manufacturers
Answer: B. To prevent unexpected energization or startup of
equipment
Rationale: Lockout/tagout controls hazardous energy by preventing
equipment from being unexpectedly energized or started while
workers are performing servicing or maintenance.
Workplace Exam Questions and Correct
Answers (Verified Answers) Plus Rationale
2027 Q&A| Instant Download Pdf
1. What is the primary purpose of NFPA 70E?
A. To establish electrical equipment manufacturing standards
B. To provide requirements for safe work practices that protect workers
from electrical hazards
C. To replace the National Electrical Code
D. To regulate utility electricity rates
Answer: B. To provide requirements for safe work practices that
protect workers from electrical hazards
Rationale: NFPA 70E focuses on electrical safety in the workplace. It
establishes safe work practices, procedures, and requirements
intended to reduce exposure to hazards such as electric shock, arc
flash, and arc blast.
,2. Which of the following is considered an electrical hazard addressed
by NFPA 70E?
A. Electric shock
B. Arc flash
C. Arc blast
D. All of the above
Answer: D. All of the above
Rationale: Electrical work can expose employees to multiple hazards.
NFPA 70E addresses shock and arc-flash hazards and recognizes the
associated thermal, pressure, and other effects that can result from
electrical incidents.
3. What is the preferred method for protecting workers from
electrical hazards?
A. Wearing additional personal protective equipment
B. Establishing an electrically safe work condition
C. Working faster
D. Using insulated tools only
Answer: B. Establishing an electrically safe work condition
,Rationale: NFPA 70E places the highest emphasis on eliminating the
electrical hazard when feasible. Establishing an electrically safe work
condition removes electrical energy from the work area and is
generally preferable to relying solely on PPE.
4. Before establishing an electrically safe work condition, what should
be done first?
A. Select an arc-rated face shield
B. Identify and locate all possible sources of electrical supply
C. Begin testing the circuit
D. Remove all PPE
Answer: B. Identify and locate all possible sources of electrical supply
Rationale: A circuit cannot be safely de-energized unless all sources of
electrical energy are identified. This includes normal supplies and
possible alternate or backfeed sources.
5. Which condition best describes an electrically safe work condition?
A. Equipment is switched off at a control panel
B. Equipment is disconnected from all sources, properly locked/tagged,
and verified de-energized
, C. Equipment is operating at reduced voltage
D. Equipment has a warning label attached
Answer: B. Equipment is disconnected from all sources, properly
locked/tagged, and verified de-energized
Rationale: Simply switching equipment off does not necessarily make
it electrically safe. An electrically safe work condition requires
appropriate disconnecting, locking/tagging, absence-of-voltage
verification, and control of stored or induced energy.
6. What is the purpose of lockout/tagout procedures?
A. To make equipment easier to maintain
B. To prevent unexpected energization or startup of equipment
C. To increase electrical system capacity
D. To identify equipment manufacturers
Answer: B. To prevent unexpected energization or startup of
equipment
Rationale: Lockout/tagout controls hazardous energy by preventing
equipment from being unexpectedly energized or started while
workers are performing servicing or maintenance.
