The 2021 edition of NFPA 70E Standard for Electrical Safety in the Workplace was recently released and is available at www.nfpa.org/70e. Each approved revision and update to NFPA 70E standards supersedes all previous editions. Are you up to date?
Created by: Wes Wheeler
1. The state in which an electrical conductor or circuit part has been disconnected from energized parts, locked/tagged in accordance with established standards, tested to verify the absence of voltage and, if necessary, temporarily ground for personnel protection is known as a(n) _______.
A. Risk assessment
C. Electrically safe work condition (ESWC)
2. _______ is defined as a combination of the likelihood of occurrence of injury or damage to health and the severity of injury or damage to health that results from a hazard.
B. Risk assessment
D. Electrical hazard
3. _______ is a dangerous condition such that contact or equipment failure can result in electrical shock, arc flash burn, thermal burn or arc blast injury.
A. Shock risk assessment
B. Arc flash risk assessment
4. According to NFPA 70E, the entity responsible for conducting a proper risk assessment is the _______.
A. Competent person
B. Authorized person
C. Qualified person
D. Licensed electrician
5. Human error can have negative consequences on _______.
C. Work environment
E. All of the above
6. For the purpose of establishing an ESWC, according to the 2021 NFPA 70E Standard for Electrical Safety in the Workplace, all the requirements of Article 120 must be met for electrical conductors and circuit parts to be considered in an ESWC.
7. An overall process that identifies hazards, estimates the likelihood of occurrence of injury or damage to health, estimates the potential severity of injury or damage to health and determines if protective measures are required is known as a _______.
B. Risk assessment
D. Lockout/tagout program
8. The distance at which the incident energy equals 1.2 cal/cm2 (5 J/cm2) is known as the _______.
A. Restricted approach boundary
B. Limited approach boundary
C. Arc flash boundary
D. None of the above
9. _______ have the ability to store electrical energy after the source has been removed.
10. The shock protection boundary requirements for 208/120V is 3 ft., 6 in. for the limited approach boundary and _______ ft., _______ in. for the restricted approach boundary.
A. 0, 3
B. 0, 6
C. 1, 0
D. 1, 6