Question 446General Subjects - Assistant Engineer
70% to passWhat type of centrifugal fan is characterized by the highest operating efficiency?
AForward-curved blade fans
BBackward-curved blade fans
CFlat blade fans
DRadial blade fans
AI Explanation
The correct answer is B) Backward-curved blade fans. Backward-curved blade fans are characterized by the highest operating efficiency among the given options. This is because the backward-curved blade design creates a more efficient airflow pattern, resulting in lower energy consumption and higher overall system performance compared to other fan types. The other options are less efficient - forward-curved blade fans have a less efficient airflow pattern, flat blade fans do not optimize airflow, and radial blade fans, while effective, are not as efficient as backward-curved designs.
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