Exam Question

### (a) Uses of Packed Gland Seal, Machineries in Use, and How Gland Packing is Lubricated and Kept Cool
A packed gland seal, often referred to as a stuffing box, is a fundamental sealing arrangement used to prevent the leakage of fluid (liquid or gas) along a rotating or reciprocating shaft where it penetrates a pressure boundary, such as a pump casing or valve bonnet. It also serves to prevent the ingress of atmospheric air or contaminants into the system.
**Primary Uses:**
* **Fluid Containment:** To prevent the escape of the process fluid from the machinery to the surrounding environment.