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Class 2 (2nd Engineer) MEKG 📅 Nov 2024

Exam Question

Sketch and describe a boiler water level controller of the float operated type. State the reasons for having this mechanism on the boiler and using this controller and boiler for analogy explain the following terms. (16)

(a) Sensing Element

(b) Servo motor

(c) Desired Value

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Reference Answer

### Boiler Water Level Controller - Float Operated Type
A float-operated boiler water level controller is a modulating control system designed to automatically maintain the water level in a boiler steam drum within safe, predetermined limits. This is critical for ensuring efficient steam generation and preventing catastrophic failures due to low water (overheating and structural damage) or high water (priming and carryover, damaging downstream machinery).
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### 1. Construction & Description

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