Tag: #ekmanagmentwritten

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(a) Describe the procedure for entry into, and inspection of, the inside of a starting air receiver, stating the types of defects which may be present with their possible causes (12) (b) Describe the procedure of closing up the air receiver and the initial pressurization to working pressure (4) Jul 2024 (Q5)

EK Motor Jul 2024 (Q4)

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(a) Describe, with the aid of a sketch, the HT and LT cooling water systems for a combined pair of medium speed engines in an installation. (12) (b) For the system described in part (a), explain how a shut-down engine is maintained at the correct temperature for immediate starting when the associated engine is also…

EK Motor Jul 2024 (Q3)

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(a) Explain why highly efficient diesel engines tend to produce more NOx than low performance diesel engine (4) (b) Describe, with the aid of a sketch, a Selective Catalytic Reduction (SCR) unit for a marine propulsion diesel engine (8) (c) Explain why accurate monitoring of the exhaust gas flows entering and leaving a selective catalytic…

EK Motor Jul 2024 (Q2)

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With reference to LNG diesel engine installations: (a) Describe, with the aid of a sketch, a Gas Valve Unit, explaining its purpose and indicating where it is located in the gas train (8) (b) Explain why ventilation and inert gas system must be installed with the engine fuel gas system (4) (c) State why pilot…

EK Motor Mar 2024 (Q9)

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With reference to boilers and steam generation systems: (a) Explain the term water hammer, stating how it is caused and describing the possible consequences of it (4) (b) Explain how water hammer can be avoided (4) (c) Describe, with the aid of a sketch, how the boiler fuel system may be operated in port to…

EK Motor Mar 2024 (Q8)

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(a) Describe, with the aid of a sketch, a lubrication system for a trunk-piston engine which has an automatic standby capability. (8) (b) Describe, with the aid of a sketch, a cylinder lubrication system for a cross-head engine, explaining why a separate cylinder LO system is fitted. (8) Mar 2024 (Q8)

EK Motor Mar 2024 (Q7)

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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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