Which of the following are the three types of 1/4 turn valves?

The correct answer identifies ball, butterfly, and plug valves as the three types of 1/4 turn valves. These valves are designed to provide quick and reliable control of fluid flow in a system. Each type is characterized by a different mechanism for opening and closing.

Ball valves use a spherical disc, or ball, that rotates to open or close the flow pathway. This design allows for minimal pressure drop and a watertight seal when the valve is closed. The rapid operation (a quarter turn) makes them highly efficient for on/off control.

Butterfly valves feature a disc that pivots around a central axis. This design enables quick operation and is ideal for controlling the flow of large volumes of fluids. Butterfly valves also take up less space and are lighter compared to other valve types.

Plug valves operate using a cylindrical or tapered plug that rotates within the valve body to either allow or restrict flow. Like ball valves, they also achieve a full shut-off with a quarter turn and are commonly used when a tight seal is required.

In contrast, options that mention globe, check, or gate valves do not fit the description of 1/4 turn valves. Globe and check valves serve different operational purposes, such as regulating flow and preventing backflow, respectively