(a) Sketch a main engine fuel system from the HFO and Low Sulphur service tanks to the main engine, showing all important valves (6) (b) Using the sketch drawn in part (a), write instructions for the changeover of a main engine fuel system from HFO to Low Sulphur fuel, indicating the timescale for each operation (10)
Fuel oil & system
UKM Tuticorin 
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