Harvest Your Future: Ace the 2025 Agricultural Engineering Exam!

Question: 1 / 400

When does frost formation occur in an air-cooling evaporator?

When the humidity is high

When the temperature is below 0°C

Frost formation in an air-cooling evaporator primarily occurs when the temperature is below 0°C. At this temperature, the moisture present in the air can condense onto the evaporator coils and freeze, forming frost. The process happens because the evaporator surface temperature drops below the freezing point of water, leading to ice accumulation as water vapor in the air cools and transitions from a gas to a solid state.

While high humidity can contribute to more moisture in the air, it is the low temperature that is crucial for frost to form. Air pressure and airflow can influence the efficiency of the evaporator and the overall cooling performance, but they are not the primary conditions that lead to frost formation. Thus, the key factor for frost development is the temperature being at or below the freezing point.

Get further explanation with Examzify DeepDiveBeta

When the air pressure is low

When the airflow is insufficient

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy