With reference to double bottom fuel tanks: (a) Explain why weighted cocks are fitted to the tank sounding pipes (2) (b) Explain the purpose of air pipes (2) (c) State the design feature incorporated on air pipe vents with respect to EACH of the following: (i) Heavy weather (2) (ii) Fire (2) (iii) Bunkering (2)
UKM Tuticorin 
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