Tag: #ukmmarineengineering

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With reference to centrifugal separators used for oily bilge duty (a) Explain why centrifugal oily water separators are superior to those rely on gravity (3) (b) Describe, with the aid of a sketch, how flow over the centrifugal separator plates can break down emulsion by encountering flocculation of particles and coalescence of droplets (5) (c) State…

EK General Mar 2023 (Q4)

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(a) Describe a vacuum sewage system. (5) (b) List the advantages of the system described in part (a) (4) (c) State why untreated sewage should not be allowed to stagnate. (1) Sewage system Mar 2023 (Q4)

EK General Mar 2023 (Q3)

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With reference to stern tube bearings: (a) Explain why white metal lined bearings are susceptible to failure; (5) (b) Outline the merits of non metallic bearings. (5) Propeller, shafting & thrusters Mar 2023 (Q3)

EK General Mar 2023 (Q2)

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(a) Describe, with the aid of a sketch, a temperature measuring instrument that uses the principle of operation of a change in resistance with the application of heat. (6) (b) Describe how the instrument sketched in part (a) is tested and calibrated. (4) Control system Mar 2023 (Q2)

EK General Mar 2023 (Q1)

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(a) Explain EACH of the following metallurgical failure mechanisms: (i) Fretting (3) (ii) Fretting corrosion (3) (b) State TWO shipboard examples where fretting may occur (2) (c) State TWO shipboard examples where fretting corrosion may occur (2) Materials Mar 2023 (Q1)

EK Motor Oct 2021 (Q9)

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With reference to oil fired boilers: (a) Describe, with the aid of a sketch, the fuel system including the pilot ignition system (6) (b) Explain how the boiler whose fuel system is described in part (a) is flashed up from cold on diesel and changed over to heavy fuel operation (6) (c) Explain how the…

EK Motor Oct 2021 (Q8)

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While operating in heavy weather the main engine loses power and misfires. Investigation shows considerable quantities of water in fuel (a) As Chief Engineer Officer, explain the immediate actions which should be taken to ensure safe operation of the ship (6) (b) State, with reason, the possible sources of water entering the fuel storage, handling…

EK Motor Oct 2021 (Q7)

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(a) Describe, with the aid of a sketch, the lubrication system for a crosshead engine, explaining the properties required for the lubricating oil in each system (10) (b) Describe a system which may be used to ensure that the cylinder lubricating oil properties are available for a crosshead engine when changing between fuels (including between…

EK Motor Oct 2021 (Q6)

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With reference to a main engine fuel system of the high pressure common rail type: (a) Sketch a common rail fuel injection system from booster pump inlet to cylinder head fuel valves, labeling the MAIN components (8) (b) Explain how the fuel pumps are operated and the common rail pressure is maintained (4) (c) Explain…

EK Motor Oct 2021 (Q5)

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