Describe the main operating features of any one of the following: Air compressor Strip heater Three-jaw chuck. - Leaving Cert Engineering - Question i - 2021

An air compressor is a device that converts power into potential energy stored in pressurized air. The main operating features include:

1. Electric Motor: The electric motor drives the compressor unit, which helps in sucking in air through an inlet valve.

2. Compressor Unit: It compresses the air into a cylinder using a piston. As the piston moves, it reduces the volume of air, thus building up pressure within the cylinder.

3. Storage Tank: The compressed air is delivered into a storage tank that holds the air until it is needed. The tank is crucial as it ensures that a stable supply of air is available for various applications.

4. Pressure Control: When the pressure reaches a preset level, the electrical motor turns off to prevent over-pressurization. The system stops compressing air until the pressure drops to a lower level.

5. Automatic Start/Stop: The electric motor automatically restarts to refill the tank whenever pressure drops below a specific threshold.