Exam 3: Boxes and Enclosures

Where a box contains both straight and angle (or U) pulls, or straight pulls and splices, you should calculate each type of pull ____ to find the dimension.

Supporting screws for nonmetallic boxes must be mounted ____ unless the box is constructed in a manner that prevents contact between the conductors in the box and the supporting screws.

____ are permitted inside conduit bodies, if the manufacturer durably and legibly marked the cubic inch capacity on the conduit body.

A luminaire that weighs more than ____ shall be supported independently of the outlet box, unless the outlet box is listed for not less than the weight to be supported.

Volume in boxes can be increased by using ____ rings, domed covers, extension rings, or similar items.