I had a question on a test that ask for the depth on a box with an enclose devise maximum .

I found 314.24 A that states the minimum for a enclose device which is 1/2 in. That was one of the choose to pick from, but of course that was not the answer. I found the answer 314.24 C 5 that has the heading of Conductor 14 AWG and smaller that finally came up with the correct answer of 15/16

My thoughts are why not have that with the maximum and minimum with the heading 314.24 A heading Outlet boxes with enclosed devices of utilization equipment.

Thank you,

Cmc :?