Class 4 (4th Engineer) MEP 📅 Sep 2025

Exam Question

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

(a) List the checks you would carry out on the various components; (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 Components
Upon opening a centrifugal pump due to abnormal noise, a systematic and thorough inspection of all internal components is critical. The following checks should be meticulously performed:
1. **Bearings (Ball, Roller, or Sleeve):**
* **Visual Inspection:** Check for signs of spalling (flaking), pitting, brinelling (indentations), corrosion, and discoloration due to overheating.

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