Class 2 (2nd Engineer) SC&S 📅 Feb 2021

Exam Question

The palm of the rudder of a vessel requires extensive welding repairs and as Second Engineer you are requested to supervise.

(a) Suggest a suitable type of welding process.

(b) State, with reasons, FOUR common welding defects that can occur there.

Reference Answer

As Second Engineer, I would oversee the extensive welding repairs required for the vessel's rudder using the following plan:
(a) Suitable Welding Process:
Manual Metal Arc Welding (MMAW), also known as Shielded Metal Arc Welding (SMAW), is the most suitable process for this repair. The reasons are threefold:
MMAW is highly portable, allowing for on-site repair within the drydock. The process is adaptable to various welding positions (downhand, overhead, horizontal, vertical) – a necessity given the complex geometry of a rudder.

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