Tag: #ukmmarineengineering

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With reference to marine diesel engine Selective Catalyst 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 Jul 2023(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) Jul 2023 (Q2)

EK Motor Jul 2023 (Q1)

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Write a report to the Superintendent Engineer regarding a number of cases of severe damage to medium speed engine exhaust valves in the previous 12 months. The report must outline the probable cause of the damage and must suggest future steps to avoid similar incidents. Jul 2023 (Q1)

EK Motor Mar 2023 (Q9)

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With reference to medium speed diesel engine cylinder liners (a) Explain the cause and effect of liner polishing and glazing (6) (b) Explain the action of an anti-polishing ring during the operation of the engine (5) (c) Describe how effective cylinder lubrication is achieved (5) Mar 2023 (Q9)

EK Motor Mar 2023 (Q8)

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(a) Explain, with the aid of sketch, the gas combustion process in a dual fuel medium speed main engine, operating with pilot injection (10) (b) Explain what is meant by exhaust gas recirculation and how this may be effective in reducing air pollution (6) Mar 2023 (Q8)

EK Motor Mar 2023 (Q7)

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With reference to diesel engine starting air systems: (a) write instructions for the checking of the starting air system in order to determine the reason for an engine failing to turn over when the starting air system is activated (6) (b) Describe the procedure for checking and preparing a starting air receiver for survey (6)…

EK Motor Mar 2023 (Q6)

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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 Mar 2023 (Q5)

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With reference to larger, slow speed, crosshead type engine: (a) Explain the nature of the forces acting on the transverse girders (6) (b) Explain the nature and location of defects that can occur in transverse girders (6) (c) Explain the possible consequences of operating the engine with serious defects present in the transverse girders (4)…

EK Motor Mar 2023 (Q4)

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As Chief Engineer, write instructions for the actions to be taken in event of a high temperature scavenge alarm being activated, due to a rapid rise in temperature, during a period of UMS operation, stating the reason for EACH action (16) Mar 2023 (Q4)

EK Motor Mar 2023 (Q3)

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