Half-round and flat-top raceways not over 4 in.(100 mm) in width must be covered by ____ or more of concrete (or wood).
A) 1/4 in.(6 mm)
B) 1/2 in.(13 mm)
C) 3/4 in.(19 mm)
D) 1 in.(25 mm)

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The Answer 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).
A) 1/4 in.(6 mm)
B) 1/2 in.(13 mm)
C) 3/4 in.(19 mm)
D) 1 in.(25 mm)

Half-Round and Flat-Top Raceways Not Over 4 In