Electrical & PPECâu 66 / 100
What does GFCI stand for and what does it protect against?
a.General Field Control Inspector; it inspects fields
b.Ground Fault Circuit Interrupter; it protects against electrical shock
c.Ground Force Cable Insulator; it insulates cables
d.Gas Flow Control Instrument; it controls gas
Giải thích
A GFCI is a Ground Fault Circuit Interrupter that protects workers from electric shock by quickly shutting off power when it detects current leaking to ground. It reacts to very small imbalances in current in a fraction of a second. GFCIs are required for many temporary power and outdoor circuits on construction sites.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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- What should you do before using an electrical cord or tool that appears damaged?
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Đội Ngũ Biên Tập PrepPass · Đối chiếu với OSHA 30-Hour Construction Safety · Quy trình kiểm tra