Exam Question
(a) How Leaks are detected and rectified on refrigerating plant? (4)
(b) Describe how suction & discharge valves are tested for tightness? (4)
(c) Describe with an illustration, how refrigerant charging is carried out? (8)
Class 4 (4th Engineer)
MEP
📅 Jun 2025
Reference Answer
### (a) Leak Detection and Rectification on Refrigerating Plant
**Leak Detection Methods:**
Effective leak detection is crucial for maintaining plant efficiency, preventing loss of expensive refrigerant, and complying with environmental regulations (e.g., MARPOL Annex VI regarding ODS). The primary methods are:
1. **Soap Bubble Test:**
**Leak Detection Methods:**
Effective leak detection is crucial for maintaining plant efficiency, preventing loss of expensive refrigerant, and complying with environmental regulations (e.g., MARPOL Annex VI regarding ODS). The primary methods are:
1. **Soap Bubble Test:**
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