Which window type slides upward or downward in grooves and is operated by a push bar?

The type of window that slides upward or downward in grooves and is operated by a push bar is the pivoting window. This design allows for easy operation, giving users the ability to open or close the window by simply pushing or pulling the bar. The pivoting action maximizes ventilation and makes it convenient for quick access to airflow.

The other window types do not match this description. Jalousie windows typically consist of adjustable slats that open and close, which is different from a sliding mechanism. Projecting windows extend outward from the building, offering a different functionality. Awning windows are hinged at the top and open outward from the bottom, serving a distinct purpose that does not align with the sliding characteristic described. Understanding these distinctions is vital when identifying different window styles and their operational mechanisms in a firefighting context.