Data Center Electrical Safety Quiz
Safety always comes first, and this is especially true in critical facilities where interruptions and downtime are not an option. Test your electrical safety knowledge — taking this quiz provided by Wheeler Machinery Co.
1. NFPA 70E (Standard for Electrical Safety in the Workplace) provides electrical safety guidance for electrical workers.
A. True
B. False
2. An arc flash occurs when an energized conductor makes contact with:
A. Another energized conductor or ground.
B. Flammable insulating products.
C. A dead bus.
D. An electrical worker’s tools.
3. Electrical safety boundaries consist of:
A. Arc Flash Boundary
B. Limited Approach Boundary
C. Electrical Control Boundary
D. Restricted Approach Boundary
E. A, B, and D
F. All of the above
4. Arc flash-rated protective clothing is rated in:
A. Microns
B. Calories
C. Ohms
D. BTU
5. Which factor/s effect the incident energy in an arc flash event?
A. Bolted fault current
B. Overcurrent device fault clearing time
C. Bus bar design
D. A and B
E. All of the above
6. Electric shock is the third largest cause of industrial deaths in the U.S.
A. True
B. False
7. Electrical gloves reduce the possibility of electric shock due to:
A. Voltage potential
B. Arc flash potential
C. Bodily contact with energized components
D. The Restricted Approach Boundary
8. The top OSHA electrical violations in 2019 were:
A. Lock out/tag out (LOTO)
B. Personal protective equipment (PPE)
C. Improper grounding/bonding
D. LOTO and PPE
E. Improper grounding/bonding and LOTO
9. The current OSHA definition of a qualified electrical worker is, “One who has received training in and has demonstrated skills and knowledge in the construction and operation of electric equipment and installations and the hazards involved.”
A. True
B. False
10. A job hazard analysis (JHA) is:
A. A formal OSHA hazard reporting procedure
B. A method of notifying management of job hazards
C. A technique that focuses on job tasks as a way to identify hazards before they occur
D. An equipment manufacturer’s safety warning
11. An electrical safety policy should include the following:
A. Scope
B. Responsibility
C. Procedures
D. Controls
E. Training
F. All the above
12. The Hierarchy of Risk Control includes all the following methods except:
A. Engineering controls
B. PPE
C. Administrative controls
D. Elimination
E. Safety controls
F. Substitution
13. Arc flash PPE categories are:
A. A list of electrical PPE.
B. Recommended safety apparel categories designed to protect employees from arc flash incidents.
C. The six step electrical safety category method.
D. Designed to help employees understand electrical hazards.
14. An Energized Electrical Work Permit is:
A. A work permit required by OSHA.
B. A work permit giving contractors authority to work on electrical systems.
C. A work permit designed to protect workers when working on conductors or equipment that is not in an electrically safe work condition.
D. A work permit used to determine incident energy levels.
