Shape of Cellular Concrete Floor Raceways

In cellular concrete floor raceways, a cell is defined as a single, enclosed _____ space in a floor made of precast cellular concrete slabs, the direction of the cell being parallel to the direction of the floor member.

a) circular
b) oval
c) tubular
d) hexagonal

See answer and applicable Code reference

The correct answer is: c) tubular

Article 372 covers the installation of cellular concrete floor raceways, the hollow spaces in floors constructed of precast cellular concrete slabs, together with suitable metal fittings. As defined in Sec. 372.2, a cell is "a single, enclosed tubular space in a floor made of precast cellular concrete slabs, the direction of the cell being parallel to the direction of the floor member."

 

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