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Q9. With reference to large fabricated bed plates explain: A. With reason, why longitudinal strength and rigidity is important in spite of the contributions made by ship’s structure. B. With sketches show how the combustions loads imposed on piston and cylinder heads are transmitted to and absorbed by bed plates

Q2. a) During an inspection it is noticed that tie rods of certain main engine units have become slack, state with reasons the possible causes of this.

b) Explain how correct tension is restored and the risk of future slackness minimized.

c) A tie rod has fractured and cannot be replaced immediately, State with reasons the course of action to be adopted in order to allow the engine to be operated without further damage.