What controls the flow gates, the augers, and/or the feed conveyors to maintain material flow?

• A. Auger Extensions and Retention Plates
• B. Automatic Flow Control
• C. Transverse Slope Control
• D. Longitudinal Joints

Answer: (B)

Automatic Flow Control is the mechanism that maintains material flow by modulating flow gates, augers, and feed conveyors in real time. It uses sensors and actuators to keep the feed steady, preventing surges and ensuring the mixer receives a constant supply for a uniform, predictable output. The other components—auger extensions and retention plates—alter how material moves within the system but don’t provide active regulation of flow rate. Transverse slope control and longitudinal joints relate to pavement geometry and joint construction, not to how material is fed into the plant.