Arkansas Boiler Operator Practice Exam 2026 - Free Boiler Operator Practice Questions and Study Guide

A steam trap is specifically designed to perform a critical function in steam systems by removing condensate and non-condensable gases. When steam is used in a heating process, it condenses into water (condensate) as it loses heat. If not removed, this condensate can accumulate in pipes, leading to a variety of issues, such as water hammer, reduced heat transfer efficiency, and increased system corrosion.

Additionally, non-condensable gases, such as air, can also enter the system and need to be expelled to maintain optimal heating performance and system efficiency. The steam trap allows steam to pass through while capturing and expelling the condensate and any gases, ensuring that the system operates efficiently and safely. This function is essential for maintaining the effectiveness of steam heating applications and preventing potential damage to the system.

Understanding this role clarifies why the other options do not encompass the primary function of a steam trap. For example, controlling steam temperature or increasing pressure are not functions of a steam trap but rather relate to other equipment within a boiler system. Similarly, safety mechanisms for shutting down a boiler pertain to safety controls, which differ from the operational focus of a steam trap.