Tennessee Wastewater Operator Practice Exam

In a turbo blower system, what components are included in the blower core?

1. Impeller, scroll, motor, and bearings

2. Compressor, valve, and expansion joint

3. Fan, filter, and tank

4. Rotary blades, housing, and discharge

The correct answer is: Impeller, scroll, motor, and bearings

The blower core in a turbo blower system consists of essential components that are integral to its operation. The impeller is a critical part that rotates at high speeds to increase the velocity of the air being moved, creating a pressure differential necessary for effective aeration or gas transfer. The scroll, or volute, is designed to efficiently direct the high-velocity air produced by the impeller into a usable form at the discharge point, enhancing overall system efficiency. The motor provides the necessary power to drive the impeller, and the bearings support the rotating components, ensuring they move smoothly and with minimal friction. This combination of parts works together harmoniously to create the desired airflow and pressure that is characteristic of turbo blowers, making the selection of these components critical for optimal performance in wastewater treatment processes. Other options mention components that may pertain to different systems or aspects of aeration but do not accurately represent the main elements included in a turbo blower's core structure.