An toànCâu 468 / 521
To protect other workers from an area where justified energized work is being performed, the qualified person should:
a.Do nothing because only they are at risk
b.Use barricades, warning signs, and an attendant if needed to keep unqualified persons out of the boundaries
c.Turn off the room lights to signal danger
d.Simply work faster to reduce exposure time
Giải thích
Energized work areas must be protected with barricades, signs, and an attendant when needed so unqualified persons stay outside the approach boundaries. Doing nothing exposes others, turning off lights creates a new hazard, and working fast does not control access to the hazard zone.
Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- An arc-flash hazard warning label applied to equipment should list information such as:
- Which equipment, when likely to require examination or servicing while energized, must be field- or factory-marked to warn of potential arc-flash hazards?
- When working within the restricted approach boundary of exposed energized parts, hand tools should be:
- Class 00 and Class 0 rubber insulating gloves are rated for maximum AC use voltages of approximately:
- When an arc-flash risk assessment requires it, in addition to arc-rated clothing a worker must protect the face and head with:
- Standard electrical arc-flash PPE also includes head and hearing protection because:
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