Allied & ICAR Exam Bank • ALLIED_0743 NAT • 2 Marks

Section 7: Dairy and Food Engineering

Refrigeration and Freezing

Subtopic: Refrigeration and Freezing

Question Statement:

A refrigerator removes $12\text{ kW}$ of heat from a cold space while rejecting $16\text{ kW}$ of heat to the ambient air. By first law of thermodynamics, power input to the compressor $W = Q_H - Q_L = 16 - 12$ in kW is:

Answer Key:

4

Step-by-Step Solution & Explanation

$W = 16.0 - 12.0 = 4.0\text{ kW}$.
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