Question

For what circumstances would you use an Ultra-fast acting fuse?

a) Lighting circuits
b) Motor circuits
c) General household circuits
d) Heating circuits

Answer 1

An ultra-fast acting fuse would be used in motor circuits as electric motors can draw high currents when they start up.

Step-by-step explanation:

An ultra-fast acting fuse would be used in motor circuits. Electric motors can draw high currents when they start up, and these currents can persist for several seconds. Therefore, a fuse that can quickly interrupt the high current is needed to protect the motor and prevent damage.