Gas Heat ESCO Practice Exam

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Which type of metallic conduit is recommended for indoor use only?

EMT
IMC
PVC
Rigid

The correct answer is: EMT

EMT, or Electrical Metallic Tubing, is a type of metallic conduit that is recommended for indoor use only. This is because EMT is made of thin-walled galvanized steel, making it lightweight and easy to bend, but not as durable as other types of metallic conduits. Option B, IMC (Intermediate Metal Conduit), is also a type of metallic conduit but is thicker and more durable than EMT. This makes it better suited for outdoor use and areas with potential damage or impact. Option C, PVC (Polyvinyl Chloride) conduit, is not metallic and therefore not recommended for indoor use as it does not provide the necessary grounding and protection from electrical hazards. Option D, Rigid conduit, is a very durable and thick-walled metallic conduit, making it better suited for outdoor and high-risk areas. However, it is not often used for indoor applications due to its size and rigidity. Therefore, EMT is the best option for indoor use only.