Question:
Pneumatic separator separates grains based on their:
Pneumatic separator separates grains based on their:
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Pneumatic = Air. If it uses air, it's about how the grain "flies" (aerodynamics).
Updated On: May 5, 2026
- Length
- Width
- Aerodynamic properties
- Shape
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The Correct Option is C
Solution and Explanation
Step 1: Concept Pneumatic separation uses a moving air stream to divide materials into different fractions.
Step 2: Meaning This separation is effective when the components of a mixture respond differently to air resistance and gravity.
Step 3: Analysis Particles are separated based on their aerodynamic properties, which include their weight, terminal velocity, and surface area. Lighter or more buoyant materials (like chaff) are carried away, while heavier grains fall through.
Step 4: Conclusion Separation is based on aerodynamic behavior.
Final Answer: (C)
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