Class 4 (4th Engineer) MEP 📅 Jun 2024

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

Abnormal noise in a centrifugal pump often indicates mechanical wear, imbalance, cavitation, or bearing failure, necessitating a thorough inspection. As a Senior MEO Class 1 Examiner, the following detailed checks, potential replacements, post-assembly verification, and operational parameter comparisons would be expected to achieve full marks.
**(a) Checks to be carried out on various parts:**
When a centrifugal pump is opened due to abnormal noise, a comprehensive examination of all components is critical to identify the root cause. The checks should include:
* **Impeller:**

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