Which of the following is the correct term for an LB conduit body?

The term "LB conduit body" refers to a specific type of conduit body that is designed for use in electrical systems where a change in direction and access to conductors is needed. The "LB" designation indicates that it provides a lateral bend or an angle of 90 degrees, which is oriented in a way that allows for side entry, typically associated with bends in horizontal runs of conduit.

LB conduit bodies facilitate the connection of conduit runs while providing a space for pulling wires or making splices, which makes it a practical choice for many installation scenarios. This specific nomenclature is aligned with the conventions outlined in the National Electrical Code (NEC), which helps in standardizing the identification and use of different conduit bodies in electrical installations.

The other choices represent different types of conduit bodies with distinct functions. For instance, "LL" usually refers to a conduit body that allows for a straight through connection with a vertical access point, while "T" denotes a conduit body that provides a T-shaped junction for three conduits. The "EL" designation refers to an elbow conduit body for making bends. Understanding the specific functions and designations of these conduit bodies is essential for proper planning and execution of electrical system wiring.