(a) With reference to refrigerated hold spaces describe using simple sketches: (8)

(i) A tween deck scupper;

(ii) An insulated brine pipe passing through a watertight bulkhead;

(b) With reference to draining water from decks, describe using simple sketches (8)

(i) A scupper pipe leading from the waterway in the tween decks to the outside of the vessel

(ii) A bulwark freeing port with the flap hinged at the top and opening outward