Question

question 72 of 100 · multiple choice

which piece of equipment should not be used with a gfci?

a eletric hand drill

b porto-ban

c angle grinder

d mag base drill

Explanation:

Analyze GFCI operating principles

A Ground Fault Circuit Interrupter (GFCI) monitors current balance between hot and neutral lines, tripping instantly if an imbalance (leakage to ground) is detected to prevent shock.

Evaluate equipment characteristics

Handheld power tools like electric hand drills, portable band saws (Porta-band), and angle grinders are highly recommended or required to be used with GFCIs for operator safety. A magnetic base drill (Mag Base Drill) relies on an electromagnetic base to hold itself securely to a steel workpiece; if a GFCI trips and cuts power, the electromagnet immediately de-energizes, causing the heavy drill to fall, which poses a severe physical hazard.

Answer:

• (A) Electric Hand Drill
• (B) Porto-ban
• (C) Angle Grinder
• (D) Mag Base Drill (Correct answer)