Q5. The hull of a box shaped vessel is 80 m long and has a mass of 800 tonne uniformly distributed over its length. Machinery of mass 200 tonne extends uniformly over the middle 20 m length of the vessel.
Two holds extending over the extreme forward and aft 20 m lengths of the vessel, each have 240 tonne of cargo stowed uniformly over their lengths.
(a) Construct curves of EACH of the following:
(i) load per metre; (8)
(ii) shearing force. (4)
(b) Calculate the value of the maximum bending moment. (4)
Q9. (a) Show that, the position of the centre of pressure for a rectangular plane, with its edge in surface, is two thirds of the depth of the plane below the surface. (4)
(b) A rectangular bulkhead 8 m wide has sea water of density 1025 kg/m3 on one side to a depth of 7 m and oil of density 850 kg/m3 on the other side to a depth of 4 m.
Calculate EACH of the following:
(i) the resultant load on the bulkhead; (8)
(ii) the position of the resultant centre of pressure. (4)
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