Allied & ICAR Exam Bank • ALLIED_0589 MCQ • 1 Mark

Section 6: Agricultural Process Engineering

Engineering Properties of Grains

Subtopic: Engineering Properties of Grains

Question Statement:

Siebel's empirical equation for specific heat $c$ (in $\text{kJ/(kg}\cdot\text{K)}$) of food materials with moisture content $M$ (wet basis fraction) above freezing is:

Options:

  • (A) $c = 0.837 + 3.349 M$
  • (B) $c = 4.187 + 0.837 M$
  • (C) $c = 1.005 M$
  • (D) $c = 2.093 - 0.837 M$

Answer Key:

A

Step-by-Step Solution & Explanation

Siebel's formula partitions dry matter ($c_d \approx 0.837$) and water ($c_w \approx 4.186$): $c = 0.837(1 - M) + 4.186 M = 0.837 + 3.349 M$.
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