Tag: #ekmanagmentwritten

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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 Oct 2024 (Q5)

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(a) Describe, with the aid of a sketch, a diesel engine NOx reduction system using chemical supply, explaining the safety and pollution avoidance systems required. (12) (b) Explain chemical reactions involved in the NOx reduction system described in part (a) of the question. (4) Oct 2024 (Q5)

EK Motor Oct 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) Oct 2024 (Q4)

EK Motor Oct 2024 (Q3)

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(a) Describe, with the aid of a sketch, a diesel engine fuel system which employs direct injection of liquid gas into engine cylinders. (12) (b) Explain the advantages of this type of gas injection system compared with the use of gaseous fuel in the form of gas. (4) Oct 2024 (Q3)

EK Motor Oct 2024 (Q2)

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Describe FOUR defects which may be found during a piston/liner inspection via cylinder scavenge ports, explaining the possible causes and the action which should be taken to prevent their recurrence. (16) Oct 2024 (Q2)

EK Motor Oct 2024 (Q1)

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In a multi engine installation one engine is showing higher Specific Fuel Consumption (SFC) than the other engines. All engines take fuel oil from the same fuel oil service tank and each engine has an individual dedicated fuel supply unit of the same make and type. (a) Explain with reasons the possible causes for one…

EK Motor Jul 2024 (Q9)

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(a) Describe the symptoms and possible causes of an exhaust gas boiler/economiser fire (5) (b) Describe the procedure for inspection and cleaning the gas side of an exhaust gas boiler/economiser (5) (c) Explain how the main engine and auxiliary steam plant may be operated in the event of an exhaust gas boiler/economiser suffering damage rendering…

EK Motor Jul 2024 (Q8)

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(a) Explain why turbochargers are fitted to some diesel engines and describe how they efficiently achieve that aim (6) (b) Describe, with the aid of a sketch, a turbocharger installation showing the paths of engine exhaust gas, charge air and cooling water. State the monitoring systems provide for the system, explaining why they are fitted,…

EK Motor Jul 2024 (Q7)

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

EK Motor Jul 2024 (Q6)

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