Tag: #ukmmarineengineering

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With reference to slow speed diesel engine turbocharging: (a) Explain why electrically driven scavenge air blowers are fitted (4) (b) Describe how a turbocharger may be disabled to allow for operation of the main engine in the event of failure of the turbocharger rotor (8) (c) Describe the procedure for running an engine in the…

EK Motor Dec 2023 (Q5)

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(a) Describe, with the aid of a sketch, a diesel engine air start system and the devices which are fitted to prevent or limit damage in the event of an explosion. (8) (b) Explain how an explosion in a diesel engine air start system might occur. (4) (c) As Chief Engineer Officer, outline the actions…

EK Motor Dec 2023 (Q4)

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(a) Describe, with the aid of a sketch, either a diesel engine Open Loop SOx scrubber system or a Closed Loop SOx scrubber system. (10) (b) Explain what systems need to be monitored in order to ensure that the scrubber system meets all IMO regulations. (6) Dec 2023 (Q4)

EK Motor Dec 2023 (Q3)

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(a) Describe, with the aid of a sketch, the lubrication systems of a crosshead type 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 trunk piston…

EK Motor Dec 2023 (Q2)

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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 2023 (Q1)

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The Chief Engineer Officer wrote a report to the company superintendent engineer concerning a bacterial attack of lubricating oil in the sumps of the main engine and one of the generator engines. The report should explain how the attack was detected, damage found in the engines, investigations into the possible cause of the attack, how…

EK Motor Oct 2023 (Q9)

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With reference to an economiser: (a) write a procedure for the cleaning of the gas side of an economiser when the associated main engine is: (i) Running; (5) (ii) Stopped. (5) (b) Write a procedure for operation of the main engine when the associated economiser cannot be operated due to tube failure. (6) Oct 2023…

EK Motor Oct 2023 (Q8)

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(a) With the aid of sketches, explain the term “fatigue” as applicable to engineering components. State what is meant by the term “fatigue limit”. (12) (b) Explain the term “stress raiser” with respect to fatigue, giving THREE examples and stating how stress raisers reduce the fatigue life of a component. (4) Oct 2023 (Q8)

EK Motor Oct 2023 (Q7)

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(a) As Chief Engineer Officer, explain how the performance of a main diesel engine may be determined, indicating how the information collected is analyzed to assess the performance of an individual cylinder in relation to the overall engine performance. (6) (b) Explain how defective fuel injection may be detected, stating, with reasons, the causes of…

EK Motor Oct 2023 (Q6)

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