Exam Question

With regard to ship construction details for transverse watertight bulkheads:

(a) State the purpose of this type of bulkhead. (3)

(b) State how the bulkheads are tested for water tightness. (3)

(c) If it is necessary to penetrate the bulkhead, precaution must be taken to ensure that the watertight integrity and the strength of the bulkhead is maintained. With this in mind, describe, using simple sketches, how the following pass-through bulkheads. (10)

(i) Main transmission shaft.

(ii) Electrical cables.

(iii) Fuel oil transfer pipes.

(iv) Air and sounding pipes.