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Q9. With reference to an oil/ water separator:

a) (i) Sketch such a device (4)

(ii) Describe the passage of oil/water mixture from the delivery of pump to the outlets of the separator. (4)

b) State how oil density and temperature affect the case of separation of oil from water. (4)

c) State how the movement of oil on board ship or its discharge and the discharge of oily-bilge or ballast water overboard is recorded. (4)