FDNY CoF – Supervision of Fire Alarm Systems (Q-01) Practice Test 2026 - Free Fire Alarm Systems Practice Questions and Study Guide

Moisture in a refrigeration system typically leads to decreased efficiency. When moisture enters the system, it can cause a number of problems, including the formation of ice within the evaporator or other components. This ice can obstruct proper airflow and lead to a decline in the system’s ability to cool effectively. Additionally, moisture can react with refrigerants, forming acids that can corrode components and create further inefficiencies. As a result, the overall performance of the refrigeration system diminishes, leading to higher energy consumption and increased operational costs.

The other options do not accurately reflect the consequences of moisture in a refrigeration system. Increased pressure is a potential concern, but the primary effect is inefficiency rather than a straightforward increase in pressure. Increased cooling capacity and enhanced operation are both outcomes that would be contrary to the effect of moisture, as moisture disrupts the optimal functioning of the system rather than improving it.