Question 37Refrigeration & AC - 1st Asst/Chief

The correct answer is C) the air is circulated slowly over a large evaporator with a minimum temperature differential. The reasoning is that rapid air circulation over a small evaporator with a high temperature differential tends to cause rapid dehydration of produce in chill boxes. Circulating the air slowly over a large evaporator with a minimum temperature differential helps to minimize this dehydration effect. This is because the slower air circulation and lower temperature differential reduce the rate of moisture removal from the produce. The other options are incorrect because they describe conditions that would either exacerbate the dehydration (A and D) or have no significant impact on it (B).