Ace the Assistive Tech Pro Quiz 2025 – Launch Your Career with Confidence!

The correct answer is pneumatic switch, which operates based on changes in air pressure. These switches are designed to detect a variation in the surrounding air pressure, which can occur due to environmental changes or the physical presence of an object. When the air pressure around the switch changes, it activates a mechanism that makes or breaks an electrical connection.

Pneumatic switches are commonly used in various applications, particularly in assistive technologies where physical input may be limited and a non-invasive method of activation is required. For instance, they can be utilized in equipment controlled by breath or other slight movements that can alter air pressure.

The other types of switches listed function differently. Proximity switches, for example, detect the presence of an object without requiring direct contact; they typically rely on electromagnetic fields or capacitive changes. Infrared switches utilize infrared light to detect motion or objects, while fiberoptic switches use light transmitted through fiber optics to detect changes or activations. Each of these methods has its own specific operational principles that do not involve changes in air pressure like the pneumatic switch does.