Class 4 (4th Engineer) MEP 📅 Jun 2025

Exam Question

(a) Describe the uses of packed gland seal. What are the machineries they are in use? In a running pump, how the gland packing is lubricated and kept cool? (6)

(b) Describe advantages of using gland packing. (5)

Reference Answer

### (a) Uses, Machinery, and Lubrication/Cooling of Packed Gland Seals
**1. Uses of Packed Gland Seals:**
A packed gland seal, or stuffing box, is a sealing arrangement used to create a fluid-tight seal between a moving component (like a rotating shaft or a reciprocating rod) and the stationary housing it passes through. Its primary functions are:
* **Leakage Control:** To control and minimize the leakage of a process fluid (liquid or gas) from within the machinery to the atmosphere.

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