Allied & ICAR Exam Bank • ALLIED_0983 NAT • 2 Marks

Section 7: Dairy and Food Engineering

Dairy Processing Equipment

Subtopic: Evaporators and Drying Equipment

Question Statement:

A spray drying cyclone receives milk powder at feed rate $M_f = 250\text{ kg/h}$. The collected powder at the rotary airlock valve is $M_c = 245\text{ kg/h}$. The collection efficiency $\eta = \frac{245}{250} \times 100$ in percentage is:

Answer Key:

98

Step-by-Step Solution & Explanation

$\eta = (245 / 250) \times 100 = 98.0\%$.
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