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Class 4 (4th Engineer) MEKG 📅 Aug 2023

Exam Question

(a) Sketch a line diagram showing a typical 'Inert Gas System' for inerting the cargo tanks of oil tanker, labeling the component parts (6)

(b) Describe the system (8)

(c) State what oxygen content you would expect in the flue gases if good combustion is achieved (2)

Reference Answer

### (a) Sketch of an Inert Gas System
A line diagram is required, illustrating the flow of flue gas from the boiler uptake, through the processing components, and to the cargo oil tanks. Key components to be clearly labeled are:
1. Boiler Uptake Valve
2. IG Scrubber Tower (with seawater inlet/outlet, packing, and demister)

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