Tag: #ekmanagmentwritten

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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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(a) Explain why pre-mixing of gas and air before supply to the engine cannot be undertaken with 2-stroke cycle engines but can be applied to 4-stroke cycle engines (4) (b) Describe, with the aid of a sketch, the fuel arrangement at the cylinder of a 2-stroke cycle fuel diesel engine which operates with high gas…

EK Motor Dec 2018 (Q6)

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Write a report to the superintendent engineer concerning an incident of cracking which was discovered in one piston of a main diesel engine and the subsequent discovery of cracking in another piston of the same engine. The report must include information about the immediate action taken to prevent further damage to the engine, the subsequent…

EK Motor Dec 2018 (Q5)

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With reference to electronically controlled engines: (a) Describe how fuel injection quantity and timing is adjusted (6) (b) Describe how the exhaust valve timing may be varied (5) (c) Describe how starting air valves are regulated (5) Dec 2018 (Q5)

EK Motor Dec 2018 (Q4)

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With reference to diesel hybrid SOx scrubber systems: (a) State the fluids used in the open and closed loops of the scrubber, explaining how these fluids are controlled to meet the scrubbing demands at different engine loads (6) (b) State the circumstances under which open loop scrubbing would be used and closed loop scrubbing would…

EK Motor Dec 2018 (Q3)

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(a) Explain why crankshaft deflections are taken (4) (b) Write a procedure for taking main engine crankshaft deflections (8) (c) Explain the action to be taken if some crankshaft deflection readings are outside acceptable limits (4) Dec 2018 (Q3)

EK Motor Dec 2018 (Q2)

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