Q1. (a) Explain the circumstances under which a two stroke engine fails to turn on air. (8)
(b) What investigations and corrective actions are required to be taken by you as a watch keeping engineer if the engine does not turn on air after repeated trials? (8)
Q2. Prepare a report to the Chief Engineer stating how an emergency fire pump which had difficulty taking suction earlier during ballast passage of a ship, is now rectified to operate satisfactorily under any acceptable condition of loading of the ship. (16)
Q3. Explain in detail how you would isolate one section of a water sprinkler system for routine maintenance. Describe all tests and inspections you would make and how you would return the system to service. (16)
Q4. Describe a procedure for cylinder liner calibration indicating how the readings are recorded to allow for easy recognition of liner wear. (16)
Q5. (a) State, with reasons, the causes of fatigue cracking of engineering components. (4)
(b) State, with reasons, how material and design defects can influence fatigue life. (6)
(c) With reference to engine bed plate transverse girders explain how the incidence of fatigue cracking can be minimized. (6)
Q6. (a) Describe different components used in soldering process. (6) (b) Describe soldering process in detail. (6) (c) What are Do's and Don'ts for good soldering joint. (4)
Q7. Write short notes on the following:
(a) The need for taking double bottom tank soundings regularly after a grounding incident. (4)
(b) Need to pre-heat main engines prior to continuous running of the engine. (4)
(c) Utility of pressure gauges on either side of high pressure fuel oil filters. (4)
(d) The purpose of opening indicator cocks before blowing through an engine. (4)
Q8. (a) Describe maintenance required on auxiliary boiler burner. (8) (b) Describe safety features provided on fuel burning system of auxiliary boiler (8)
Q9. (a) Describe what would be the indications of crank case explosion in main engine. (4)
(b) Describe actions to be taken, if there is crank case explosion in main engine. (8)
(c) Describe means of prevention of crank case explosion. (4)
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