Tag: #ukmmarineengineering

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With reference to fatigue cracking: (a) describe, with the aid of an S/N curve, the relationship between applied stress and the number of applied stress fluctuations in fatigue crack propagation (5) (b) Define the term Stress Raiser, giving examples and explaining the influence of a stress raiser on the propagation of a fatigue crack (5)…

EK Motor Mar 2023 (Q1)

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Write a report to the Superintendent Engineer regarding the failure of an engine to complete an automatically programmed Slow Turn operation and the actions taken to discover and rectify the cause of the problem after it had been determined that the starting air system and slow turning control system were operating correctly. Mar 2023 (Q1)

EK Motor Dec 2022 (Q9)

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(a) As the Engineer Manager writes standing instructions for the in-service cleaning is the gas side of a waste heat recovery steam generator unit. (8) (b) As the Engineer Manager write standing instruction for the action to be taken in the event of an uptake fire in the waste heat recovery steam generating unit and…

EK Motor Dec 2022 (Q8)

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(a) Describe with the aid of sketches the operation of a four-stroke dual fuel engine, explaining how the correct amount of gaseous and liquid fuels are supplied to the cylinders to meet the power requirement and how the cylinder charge is ignited (10) (b) State, with reasons, three problems associated with the burning of gaseous…

EK Motor Dec 2022 (Q7)

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(a) Describe the dangers associated with a main engine starting air system, explaining how these dangers are mitigated. (9) (b) State, with reasons THREE causes of an engine failing to fire on fuel after successfully turning over on starting air. (3) (c) Explain how the engine is transferred to local (engine side) control in the…

EK Motor Dec 2022 (Q6)

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(a) Describe, with the aid of a sketch, an open loop system for reducing SOx emissions from engine exhaust gas, explaining how the system operates whilst the vessel is in open waters. (6) (b) Describe, with the aid of a sketch, a closed loop scrubber system for removing SOx from engine exhaust gas, explaining the…

EK Motor Dec 2022 (Q5)

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(a) Describe the purpose of a diesel engine crankcase oil mist eliminator/oil box, explaining how such a system operates (6) (b) Describe, with reasons, the properties required of a trunk piston diesel engine crankcase lubrication oil stating how the LO is maintained in good condition over an operating period. (10) Dec 2022 (Q5)

EK Motor Dec 2022 (Q4)

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With reference to poor ignition quality fuel: (a) Explain how it can affect combustion in BOTH slow speed and medium speed diesel engines (8) (b) Explain how the effects on BOTH diesel engine types in part (a) can be reduced. (8) Dec 2022 (Q4)

EK Motor Dec 2022 (Q3)

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With reference to turbocharger systems: (a) Describe how performance of the system is monitored and how the information gathered is used to assess performance: (8) (b) Describe the arrangements for maintaining the systems in good condition (8) Dec 2022 (Q3)

EK Motor Dec 2022 (Q2)

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