Exam Question

(a) With reference to the underwater surface of a

ship's hull: (16)

(i) Describe a hull plate roughness analyser system

(ii) State the significance of the roughness profile and compare the typical roughness values for a new ship and a ship eight years old;

(b) Which reference to the application of self-polishing paint in dry dock:

(i) Describe the plate preparation necessary

(ii) State the defects that may occur in the paint coating if it is not correctly applied.