UKM Tuticorin

Tag: #bacterialgrowth

  • EK General Oct 2023 (Q7)

    EK General Oct 2023 (Q7)

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    (a) State the possible causes for EACH of the following auxiliary diesel engine lubricating oil sample results (i) High acidity (2) (ii) High sediment content (2) (iii) Excessive water content (2) (iv) Fuel dilution (2) (b) Explain which of the results in (a) would give greatest concern. (2) Lubricating oil & system Oct 2023 (Q7)

  • EK General Dec 2021 (Q6)

    EK General Dec 2021 (Q6)

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    With reference to microbial infestation (a) List the engine room system that may be affected by this type of contamination (2) (b) Explain the conditions required for bacteria to evolve (6) (c) Describe how the presence of microbial contamination could be detected (2) Lubricating oil & system Dec 2021 (Q6)

  • EK General Jul 2020 (Q7)

    EK General Jul 2020 (Q7)

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    (a) Sketch a block diagram of a fully automated air conditioning system for accommodation spaces, annotating the relevant temperatures and relative humidities throughout the system. (7) (b) Describe how bacteria are prevented from multiplying to a harmful level in an air conditioning system. (3) Reefer & A/C Jul 2020 (Q7)

  • EK General Oct 2017 (Q6)

    EK General Oct 2017 (Q6)

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    UKM TUTICORIN
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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 systems for shipboard production of fresh water (3) (b) State the maintenance and treatment recommended for fresh water tanks (3) (c) Describe how the entire fresh water system can be made free…