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
📅 Dec 2025
Reference Answer
### (a) Leak Detection and Rectification in Refrigerating Plant (4 Marks)
Leaks in a refrigeration system result in the loss of refrigerant, reduced cooling efficiency, and potential environmental damage. Detection and prompt rectification are critical operational tasks.
**1. Leak Detection Methods:**
* **Electronic Leak Detector:**
Leaks in a refrigeration system result in the loss of refrigerant, reduced cooling efficiency, and potential environmental damage. Detection and prompt rectification are critical operational tasks.
**1. Leak Detection Methods:**
* **Electronic Leak Detector:**
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