Which control on a bumper turret allows for movement of the nozzle?

The control on a bumper turret that allows for movement of the nozzle is the control handle. This handle is designed to enable the operator to maneuver the nozzle to direct the flow of water or other extinguishing agents precisely where needed during an emergency response. By using the control handle, firefighters can adjust the angle and direction of the nozzle effectively, enhancing their ability to combat fires and protect both themselves and the aircraft they are responding to.

While other controls, such as discharge adjustment and pressure override, serve important functions—like managing the flow rate and operational pressure of the discharge—the primary function of the control handle is to facilitate the physical movement of the nozzle itself. Focus shift typically refers to adjustments in spray patterns but does not involve the positional movement of the nozzle. Thus, the control handle is specifically designed for directional control, making it the correct answer.