Q7. State why the following equipment’s require shut down during a major fire which has necessitated the evacuation of the machinery spaces:
(a) Settling and service tank valves. (4)
(b) Fuel transfer and supply pumps (4)
(c) Mechanical and natural ventilation (4)
(d) State how the fire is brought under control using the facilities available outside the machinery spaces. (8)
Q8. (a) Sketch a simple line diagram showing a shipboard oily water separator in series with a coalescing second stage. (10)
(b) Briefly describe the above arrangement and its operations also state the allowable oil content in p. p. m. of the discharge effluent from such an arrangement. (10)
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