Question

which of the following devices help protect equipment from temporary above - normal voltages?
a. fuse
b. emi grounding strap
c. surge protector
d. power strip

Explanation:

1. Fuse: A fuse is an electrical - safety device that melts and breaks the circuit when the current exceeds a certain value, protecting equipment from over - current but not specifically from temporary over - voltage.
2. EAR grounding stake: Equipment - grounding (EAR - Earth Grounding) is mainly for safety against electrical shock and to provide a path for fault currents, not for protecting against over - voltage.
3. Surge protector: A surge protector is designed to protect electrical equipment from temporary over - voltage (surges) by diverting the excess voltage to the ground.
4. Power strip: A power strip is mainly used to provide multiple electrical outlets for connecting devices, not for protecting against over - voltage.

Answer:

Surge protector