Which of the following is a component of an electromechanical system?

• A. Hydraulic Pump
• B. Proximity Sensor
• C. Pneumatic Cylinder
• D. Resistance Heater

Answer: (B)

An electromechanical system combines electrical and mechanical components to perform specific tasks or functions. A proximity sensor is a key component of these systems as it detects the presence or absence of an object without physical contact. This sensor typically uses an electrical signal to trigger mechanical actions, making it essential for automating processes, enhancing safety in machinery, or enabling feedback in systems.

In contrast, a hydraulic pump primarily uses fluid power which is not inherently electrical, while a pneumatic cylinder operates using compressed air. A resistance heater is focused on electrical heating and does not involve mechanical motion. Therefore, the proximity sensor aptly fits the definition of an electromechanical component, bridging the gap between electrical signals and mechanical action.