Category: EK Motor

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(a) Describe with the aid of a sketch, an electronically controlled common rail fuel injection system for a marine diesel engine showing the pumps, common rail, control arrangements and injectors for one of the cylinders (10) (b) State, with reasons, the advantages of an electronically controlled common rail fuel injection system. (6) Electronic engine &…

EK Motor Mar 2019 (Q6)

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(a) Describe how crosshead bearing and guide clearances can be checked (6) (b) Describe, with the aid of a sketch, the procedure for checking the condition of a crosshead engine bottom end bearing surface (10). Bearings Mar 2019 (Q6)

EK Motor Mar 2019 (Q5)

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(a) Describe, with the aid of a sketch, the arrangement of the gas and liquid fuel systems at the cylinder of a dual fuel 4-stroke engine, stating the input and output signals at the controller (12) (b) Describe the arrangement of the gas fuel piping system used for a 4-stroke dual fuel engine, stating the…

EK Motor Mar 2019 (Q4)

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(a) Describe, with the aid of a sketch, the lubrication system for a crosshead engine, explaining the properties required for the lubricating oil in each system (10) (b) Describe a system which may be used to ensure that the cylinder lubricating oil properties are available for a crosshead engine when changing between fuels (including between…

EK Motor Mar 2019 (Q3)

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With reference to a closed loop engine exhaust gas SOx scrubber system: (a) Describe, with the aid of a sketch, such a system. (8) (b) State, with reasons, the fluid which is used for SOx scrubbing in this system. (4) (c) State how the effectiveness of the scrubbing fluid is maintained and how the sludge…

EK Motor Mar 2019 (Q2)

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With reference to turbocharger systems: (a) Describe, with the aid of a sketch, a turbocharger jet assist system, explaining how it operates and why it is used (10) (b) Describe, with the aid of a sketch, a wastegate and bypass system, explaining why such an arrangement is fitted (6) Scavenging & Turbocharger Mar 2019 (Q2)

EK Motor Mar 2019 (Q1)

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As Chief Engineer Officer, write a report to the engineering superintendent regarding failure of a four-stroke main engine, to complete a slow turning procedure and the discovery of water around a cylinder head gasket after the failed slow turning attempt. The report must outline the possible cause of the problem and the steps taken to…

EK Motor Dec 2018 (Q9)

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(a) Describe, with the aid of a sketch, a waste heat steam generating system incorporating separate oil fired boiler and diesel engine exhaust gas heat recovery unit (economiser) (10) (b) Explain how the system described in part (a) operates to ensure that the correct steam pressure is maintained during variations in engine load and steam…

EK Motor Dec 2018 (Q8)

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(a) Describe, with the aid of a sketch, a main engine fuel oil circulation system incorporating the MGO and HFO service tanks, a fuel oil change-over system heating and viscosity control system and tank return system (10) (b) Write instructions for changing the system described in part (a) of the question from MGO to HFO,…

EK Motor Dec 2018 (Q7)

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