Exam Question

### (a) Safety Devices fitted to an Air Compressor (4 Marks)
Air compressors operate under high pressure and involve significant mechanical energy, making robust safety devices essential to protect personnel, prevent equipment damage, and ensure reliable operation. The primary safety devices fitted to an air compressor include:
* **Safety Valves / Relief Valves:**
* **Purpose:** These are the most critical safety devices, designed to prevent over-pressurization in any stage of the compressor or its associated receivers and piping. If the pressure exceeds a predetermined safe working limit, the valve automatically opens to vent the excess air to atmosphere, preventing rupture of components.