A thin walled steel raceway of circular form with a corrosion-resistant coating for protection of wires or cables is ______.
A. rigid metal conduit
B. flexible metal pipe
C. metal moulding
D. electrical metallic tubing
Answer:D
A thin walled steel raceway of circular form with a corrosion-resistant coating for protection of wires or cables is ______.
A. rigid metal conduit B. flexible metal pipe C. metal moulding D. electrical metallic tubing