📊 Fluid Mechanics and Machinery
Q. Main application of positive displacement pump is in which of the following?
  • (A) low viscosity products
  • (B) heavily aerated liquids
  • (C) gentle treatment with high viscosity
  • (D) water treatment
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✅ Correct Answer: (C) gentle treatment with high viscosity

Explanation: this type of pump has 100% volumetric efficiency (no slip) when the viscosity exceeds approximately 300 cp. because of the sanitary design and the gentle treatment of the product, this type of pump is widely used for pumping cream with a high fat content, cultured milk products, curd/whey mixtures, etc.

Explanation by: Mr. Dubey
this type of pump has 100% volumetric efficiency (no slip) when the viscosity exceeds approximately 300 cp. because of the sanitary design and the gentle treatment of the product, this type of pump is widely used for pumping cream with a high fat content, cultured milk products, curd/whey mixtures, etc.

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