Category: EK Motor

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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) Mar 2024 (Q7)

EK Motor Mar 2024 (Q6)

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With reference to marine diesel engine Selective Catalytic Reduction (SCR): (a) Explain, with the aid of a graph, the influence that fuel sulfur content has on the operation of an SCR unit (4) (b) Explain how the operation of a turbocharger system can have a detrimental effect on the unit when burning fuels with higher…

EK Motor Mar 2024 (Q5)

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(a) Sketch a main engine fuel system from the HFO and Low Sulphur service tanks to the main engine, showing all important valves. (6) (b) Using the sketch drawn in part (a), write instructions for the changeover of a main engine fuel system from HFO to Low Sulphur fuel, indicating the timescale for each operation.…

EK Motor Mar 2024 (Q4)

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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) Mar 2024 (Q4)

EK Motor Mar 2024 (Q3)

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(a) Describe, with the aid of a sketch, a cylinder arrangement for a dual fuel 2-stroke engine, explaining how the gaseous fuel is delivered to the cylinder and ignited. (12) (b) Explain the term methane slip in reference to a dual fuel engine, stating why it occurs and the effect on the atmosphere (4) Mar…

EK Motor Mar 2024 (Q2)

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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 (10) (b) Describe the charge air supply system for a turbocharged engine, explaining the purpose of each main part (6) Mar 2024 (Q2)

EK Motor Mar 2024 (Q1)

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The Chief Engineer officer wrote a report to the engineering superintendent regarding the failure of a high pressure fuel pump unit on an electronically controlled engine. The report must explain the nature of the failure, how the failure was detected and the immediate action taken. The report must also explain the actions taken to replace…

EK Motor Dec 2023 (Q9)

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With reference to oil fired boilers: (a) Describe, with the aid of a sketch, the fuel system including the pilot ignition system (6) (b) Explain how the boiler whose fuel system is described in part (a) is flashed up from cold on diesel oil and changed over to heavy fuel operation (6) (c) Explain how…

EK Motor Dec 2023 (Q8)

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(а) With the aid of a sketch, explain how and why thermal stress occurs in cylinder liners of an operating diesel engine. (10) (b) With the aid of a sketch, explain how cylinder liner thermal stress can be minimised. (6) Dec 2023 (Q8)

EK Motor Dec 2023 (Q7)

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