Question:
Which type of fan moves a large airflow against very low resistance?
Which type of fan moves a large airflow against very low resistance?
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Propeller fans = High volume, low static pressure; Centrifugal fans = High static pressure, moderate volume.
Updated On: Sep 15, 2026
- Centrifugal
- Axial
- Propeller
- Turbulent
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Fans and blowers are selected based on required volumetric airflow rate and system static pressure resistance.
Step 2: Detailed Explanation:
Propeller fans (a subset of axial fans with blade discs) move large volumes of air at high flow rates against minimal static pressure resistance (typically $< 25\text{--}50\,\text{Pa}$).
They are widely used in general wall ventilation and cold storage air circulation.
Centrifugal fans are utilized when air must be driven through ducts and grain beds against high static resistance.
Step 3: Final Answer:
Thus, propeller fans move large airflows against very low resistance.
Fans and blowers are selected based on required volumetric airflow rate and system static pressure resistance.
Step 2: Detailed Explanation:
Propeller fans (a subset of axial fans with blade discs) move large volumes of air at high flow rates against minimal static pressure resistance (typically $< 25\text{--}50\,\text{Pa}$).
They are widely used in general wall ventilation and cold storage air circulation.
Centrifugal fans are utilized when air must be driven through ducts and grain beds against high static resistance.
Step 3: Final Answer:
Thus, propeller fans move large airflows against very low resistance.
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