Class 4 (4th Engineer) MEP 📅 Sep 2023

Exam Question

A centrifugal pump has been opened up due to abnormal noise:

(a) List the checks you will carry out on various parts (4)

(b) Name the parts which may require replacement (4)

(d) Operational parameters, which may be required to be compared with manufacturers test record. (4)

Reference Answer

A centrifugal pump's abnormal noise is a critical indicator of internal wear, damage, or improper assembly. A thorough "Surveyor-Grade" inspection and re-commissioning process is essential to diagnose the root cause, restore operational integrity, and prevent recurrence.
**(a) Checks to be carried out on various parts during overhaul:**
Upon dismantling the centrifugal pump, a meticulous inspection of each component must be conducted. This systematic approach ensures that all potential issues contributing to the abnormal noise are identified:
* **Casing (Volute/Diffuser):**

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