Q4. While operating at Sea during rough weather conditions, fire sparks have been observed coming out from the chimney. On investigation, it has been observed that the fuel contains considerable quantity of water and sludge. As the Second engineer of the vessel. Explain: A. Immediate actions taken to rectify the problem. B. Precautions you take to avoid recurrence of this type of problem.
Q5. State the probable engine defects and rectifying action needed if the following conditions are indicated on a single unit of a large two-stroke marine diesel engine giving seven units. State any additional information which might be of help in forming on option. (16)
A. Increased exhaust temperatures. B. Reduced exhaust temperature.
C. Reduction in jacket cooling water return temperature.
D. Increase in jacket cooling water return temperature.
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