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Class 4 (4th Engineer) MEKG 📅 Mar 2026

Exam Question

(a) Describe the constructional features of a plate type fresh water generator and its operational procedure for water generation. (6) 

(b) State the temperatures and pressures at salient points. (4) 

(c) State some of the advantages and limitations that exist in using a plate type heat exchanger. (6) 

Reference Answer

### (a) Constructional Features and Operational Procedure of a Plate Type Fresh Water Generator
#### **Constructional Features (Surveyor-Grade Detail)**
A plate-type fresh water generator is a compact vacuum distillation system. Its construction is centered around a plate pack housed within a frame. The unit is divided into two main sections: a larger evaporator section and a smaller condenser section.
1. **Plate Pack**: This is the core of the unit, consisting of a stack of thin, corrugated plates, typically made of titanium for excellent corrosion resistance.

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