Electrical wall boxes should not be mounted back-to-back in walls because ____.
A) sound may be transmitted from room to room
B) it reduces the fire resistance of the wall
C) the practice violates building codes
D) all of these

Question

Quizplus · Accepted Answer

Mounting electrical wall boxes back-to-back in walls can lead to sound transmission between rooms, reduce the fire resistance of the wall, and violate building codes. Therefore, all of these reasons are valid and the best choice is D.

Electrical Wall Boxes Should Not Be Mounted Back-To-Back in Walls