ICC Commercial Mechanical Practice Exam

What is a mechanical exhaust system that captures air contaminants at their source called?

1. Source capture system

2. Cleaner vent

3. Cleaner tower

4. Stack trap

The correct answer is: Source capture system

A mechanical exhaust system that captures air contaminants at their source is known as a source capture system. This type of system is specifically designed to minimize the release of harmful pollutants into the workplace or environment by capturing them right where they are generated. The efficiency of source capture systems plays a crucial role in protecting both worker health and the integrity of the surrounding area. These systems often include hoods, ductwork, and fans tailored to quickly and effectively draw in contaminants, such as fumes, vapors, and dust, ensuring they are directed to proper filtration and exhaust mechanisms before they can disperse into the air. This proactive approach not only enhances air quality but also complies with various health and safety regulations. The other options represent different concepts or systems in air management but do not specifically define the process of capturing contaminants at the source. For example, options depicting 'cleaner vent' and 'cleaner tower' could refer to systems designed for general air quality improvement or filtration rather than direct source capture. A stack trap typically refers to components associated with piping systems, particularly related to drainage or venting, and does not pertain to capturing airborne contaminants directly.