Tag: #ekmanagmentwritten

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(a) Explain why a diesel engine cylinder is supplied with excess air (4) (b) Explain why fuel droplet size produced during injection has to be within narrow limits in order to enable good cylinder combustion to be achieved (4) (c) Explain how the desired fuel droplet size is produced by fuel injections (4) (d) State…

EK General Mar 2022 (Q7)

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With reference to air compressors for general service use: (a) Explain the principle of operation of a screw type compressor (4) (b) Explain the advantages of screw compressors over reciprocating compressors in terms of running and maintenance (6) Compressed air system Mar 2022 (Q7)

EK Motor Oct 2020 (Q6)

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(a) Describe a procedure for cylinder liner calibration, indicating how the readings are recorded to allow for easy recognition of liner wear (6) (b) Describe TWO forms of abnormal cylinder wear, explaining how EACH is recognised (6) (c) Explain how abnormal cylinder liner wear may be prevented (4) Cylinder liner Oct 2020 (Q6)

EK General Mar 2022 (Q6)

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With reference to bacteria harmful to humans in drinking and washing water: (a) State the constraints placed on the installation and use of a system for shipboard production of fresh water (3) . (b) State the maintenance and treatment recommended for fresh water tanks (3) (c) Describe the principle of operation of a sterilizer that…

EK Motor Oct 2020 (Q5)

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(a) Draw a labeled sketch through a section of a crosshead type engine, showing the location and fitting of tie rods (4) (b) Explain why tie rods are fitted is crosshead engines and not required for a trunk piston engines (6) (c) As Chief Engineer Officer, write instruction for the checking of tie rods fitted…

EK General Mar 2022 (Q5)

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With reference to centrifugal pumps: (a) Explain the principle of operation of a centrifugal pump (4) (b) Explain why centrifugal pumps are not self priming (2) (c) State why some pumps may have EACH of the following (i) A double entry impeller (2) (ii) More than one impeller (2) Pumps & system Mar 2022 (Q5)

EK General Mar 2022 (Q4)

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State the inspections, instructions and maintenance that should be carried out on main sea water pipelines, strainers and ship’s side valves to minimize the risks of engine room flooding. (10) Materials Mar 2022 (Q4)

EK Motor Oct 2020 (Q4)

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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) Dual fuel Oct 2020 (Q4)

EK General Mar 2022 (Q3)

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With reference to machinery condition monitoring systems: (a) State what is meant by machinery condition monitoring (2) (b) State the means available for gathering data (3) (c) Describe how the data is used to indicate machinery condition trends (3) (d) Explain the relevance of machinery condition monitoring to approved planned maintenance systems (2) Duties &…

EK Motor Oct 2020 (Q3)

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