Exam 5: Raceways and Conductors

Flexible metal conduit (FMC) is a raceway of circular cross section made of ____.

Half-round and flat-top raceways not over 4 in.(100 mm) in width must be covered by ____ or more of concrete (or wood).

Listed flexible metal conduit can serve as a grounding means if certain conditions are met.One of these conditions is that the circuit conductors contained therein must be protected by overcurrent devices rated at _____.

Raceway fill calculations are a prerequisite in determining ____ needed for particular circuits.

Raceways installed within drop ceilings must ____.

Contact of dissimilar metals (except for the combination of aluminum and steel) should be avoided wherever possible to lessen the potential for ____.