Which window type does not have any operable components?

The correct choice is the fixed window, as it is designed as a completely stationary unit. Unlike operable windows, fixed windows do not have any parts that can move to open or close. This type of window provides a clear view and allows natural light to enter, but it does not offer ventilation options because it cannot be opened.

In contrast, the double hung, sliding, and single hung windows all feature components that can be operated. Double hung windows have two sashes that can move up and down, while single hung windows have only one movable sash with the other fixed in place. Sliding windows slide horizontally to open and close. These operating mechanisms are characteristic of windows that allow airflow, which is absent in fixed windows. Understanding the differences in these window types is crucial in building and construction, as each serves a unique purpose based on design and functionality.