Tag: #ukmmarineengineering

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(a) Describe, with the aid of a sketch, a main engine starting air system, stating the safety devices which are incorporated (8) (b) In the event of the main engine failing to turn on air even though there was sufficient air pressure in the starting air receivers, explain the procedure for tracing the cause of…

EK Motor Oct 2023 (Q4)

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With reference to diesel engine NOx emissions and control: (a) Explain how exhaust gas recirculation and direct water injection reduce engine NOx emissions but result in increased specific CO2 emissions (6) (b) Describe, with the aid of a sketch, a Selective Catalytic Reduction system, stating with reasons, the monitoring and control system required (10) Oct…

EK Motor Oct 2023 (Q3)

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(a) Sketch a main engine electronically controlled fuel injection system (6) (b) Explain how fuel injector quantity and timing is changed in the fuel injection system sketched in (a) (6) (c) State why it may be necessary to change engine fuel injection timing (4) Oct 2023 (Q3)

EK Motor Oct 2023 (Q1)

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As Chief Engineer Officer, write a report to the vessel’s owners proposing the adoption of onboard HFO sample testing, explaining which properties would be tested and the operational benefits which may be achieved. (16) Oct 2023 (Q1)

EK Motor Jul 2023 (Q9)

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Write a procedure for the actions to be taken in the event of an engine oil mist detector alarm being activated, stating the reasons for EACH action. The procedure must cover the period from activation of the alarm to return of the engine to normal operation. (16) Jul 2023 (Q9)

EK Motor Jul 2023 (Q8)

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(a) Describe, with the aid of a sketch, a main engine fresh water cooling water system, incorporating HT and LT systems (8) (b) Describe the charge air supply system for a turbocharged engine, explaining the purpose of each main part. (8) Jul 2023 (Q8)

EK Motor Jul 2023 (Q7)

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(a) Describe, with the aid of a sketch, the lubrication systems of a crosshead type slow speed diesel engine. (8) (b) Explain the properties required by the lubricating oil in EACH of the systems described in part (a), stating how these properties compare with those of a lubricating oil used in the crankcase of a…

EK Motor Jul 2023 (Q6)

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With reference to fatigue of engineering components: (a) Draw an S/N curve for steel, showing the Fatigue Limit and two representative stress-cycle conditions on the graph (4) (b) Explain how a component is designed to avoid fatigue failure, using the S/N curve drawn in part (a) (4) (c) Explain how poor maintenance and incorrect machinery…

EK Motor Jul 2023 (Q5)

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(a) Describe the procedure for entry into, and inspection of, the inside of a starting air receiver, stating the types of defects which may be present with their possible causes (12) (b) Describe the procedure of closing up the air receiver and the initial pressurization to working pressure (4) Jul 2023 (Q5)

EK Motor Jul 2023 (Q4)

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