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Q10. Describe with sketches the arrangement of a power operator sliding water light door. B. A watertight bulkhead 7.5m high has vertical stiffeners 0.75m apart, connected at the bottom by brackets having 10 rivets 20mm diameter in each arm. The bulkhead is flooded to the top on one side only with seawater calculate. (i) Shearing force at top and bottom; (ii) Position of zero shear; (iii) Shear stress in the rivets; Draw the load and shearing force diagrams.