Question

1. what is the problem with the bottom breaker?

options:
○ overfusing
○ incompatible breaker
○ overheating
○ double tapping
○ linking device missing

Explanation:

Double tapping means connecting two wires to a single circuit breaker terminal, which is a common electrical wiring issue. Looking at the bottom breaker, we can see two wires connected to its terminal, indicating double tapping. Other options: Overfusing relates to fuse issues (not breakers here), incompatible breaker would be a wrong - type breaker, overheating shows heat - related signs (not evident here), and linking device missing is about a different component.

Answer:

D. Double tapping