(a) What action should be taken in the event of partial loss of Intact buoyancy (6)

(b) A vessel of constant rectangular cross-section is 60 m long, 12 m beam and floats at a draught of 4.5 m. It has a mid-length compartment 9 m long which extends right across the ship and upto the deck, but is sub-divided by a horizontal watertight flat 3 m above the keel.

Find the new draught if this compartment is bilged: (10)

(i) Below the flat.

(ii) Above the flat