Hi Guys, I have exam tomorrow yet I'm still puzzled about which electrical conduit cannot be embedded in concrete or underground ? I received mixed answers from Kaplan, Ballast, and Amber Book, so would like to verify with everyone. Choices are as follows
Rigid Conduit (RMC)
Electrical Mettalic Tubing (EMT)
Intermediate Metal Conduit (IMC)
Flexible Metallic Conduit
Armor Conduit
Romex/ Nonmetallic Sheathed Cable
Which one is it that cannot be embedded in concrete or used in underground?
Thanks very much.