Q8. (a) Explain why the draught of a ship decreases when it passes from fresh water to seawater and vice versa (6)
(b) A bulkhead 9 m deep is supported by vertical stiffeners 750 mm apart. The bulkhead is flooded to the top edge with sea water on one side only. Calculate: (10)
(a) Shearing force at top
(b) Shearing force at bottom
(c) Position of zero shear