With reference to roll reduction systems: (a) Explain the principle of operation of bilge keels, stating their advantages; (4) (b) Describe TWO other methods of roll reduction, stating the advantages and disadvantages of EACH system. (6)
With reference to roll reduction systems: (a) Explain the principle of operation of bilge keels, stating their advantages; (4) (b) Describe TWO other methods of roll reduction, stating the advantages and disadvantages of EACH system. (6)
UKM Tuticorin 
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