Q4. A. Describe a method of the attachment of bilge keels;
B. State THREE reasons for not extending bilge keels the entire length of the vessel;
C. Evaluate the effectiveness of bilge keels for large wall sided vessels;
D. Explain TWO principles of roll damping those bilge keels exploit.
Q10. A. With reference to dynamical stability, describe the effect of an increase in wind pressure when a vessel is at its maximum angle of roll to windward.
b) A box shaped vessel of length 100 metres and breadth 18 metres, floats in salt water on an even keel at 7.5 metres draft. KG = 4 metres. The ship has a continuous center line bulkhead which is watertight. Find the list if a compartment amidships, which is 15 metres long and is empty, is bilged on one side.
Q1. a) Describe a method of the attachment of bilge keels; (6)
b) State THREE reasons for not extending bilge keels the entire length of the vessel; (6)
c) Explain TWO principles of roll damping those bilge keels exploit. (4)
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