Class 4 (4th Engineer) MEP 📅 Dec 2022

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) Checks to be carried out on various parts (4 Marks)
When a centrifugal pump is opened due to abnormal noise, a meticulous inspection of each component is paramount to identify the root cause of the issue. The following checks would be performed:
* **Pump Casing:**
* **Erosion and Corrosion:** Inspect the volute, diffusers (if present), and suction/discharge nozzles for signs of material degradation due to fluid flow or chemical attack. Pay close attention to areas of high velocity.

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