UKM Tuticorin

Tag: #centrifugalpump

  • Bilge, OWS, ORB

    Bilge, OWS, ORB

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    Bilge , OWS , ORB

  • EK General Dec 2023 (Q5)

    EK General Dec 2023 (Q5)

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    With reference to centrifugal pumps: (a) Describe how EACH of the following improves pump performance: (i) Raising the speed of rotation (2) (ii) Multi-staging (2) (b) Explain the advantages of using centrifugal pumps instead of positive displacement pumps for lubricating oil circulating duties (6) Pumps & system Dec 2023 (Q5)

  • EK General Oct 2023 (Q4)

    EK General Oct 2023 (Q4)

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    With reference to centrifugal pumps: (a) Explain the operating principle of a centrifugal pump, stating why it is necessary to fit a relief valve to it (3) (b) Explain why some pumps have a double entry impeller (2) (c) Describe a routine overhaul of a centrifugal pump, stating the inspections, measurements and possible replacement parts…

  • EK General Mar 2022 (Q5)

    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 (Q1)

    EK General Mar 2022 (Q1)

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    State, with reasons, the materials used in EACH of the following components of a centrifugal pump for sea water circulation duties: Casing (2) Impeller (2) Shaft (2) Wear ring (2) Mechanical seal (2) Materials Mar 2022 (Q1)

  • EK General Jul 2021 (Q5)

    EK General Jul 2021 (Q5)

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    With reference to centrifugal pumps (a) State the operating principle of a centrifugal pump and why it is unnecessary to fit a relief valve to it (2) (b) State TWO impeller types, explaining which type of application EACH would be best suited for (4) (c) Explain why cavitation occurs and how it is reduced by…

  • EK General Aug 2020 (Q5)

    EK General Aug 2020 (Q5)

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    With reference to centrifugal pumps: (a) Describe how EACH of the following improves pump performance: (i) Raising the speed of rotation; (2) (ii) Multi-staging. (2) (b) Explain the advantages of using centrifugal pumps instead of positive displacement pumps for lubricating oil circulating duties. (6) Pumps & system Aug 2020 (Q5)

  • EK General Jul 2019 (Q4)

    EK General Jul 2019 (Q4)

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    With reference to centrifugal pumps: (a) Explain how the performance may be assessed without the need to dismantle the pump; (3) (b) State the effects of misalignment between the driving motor and the pump; (3) (c) Describe, with the aid of a sketch, how on a new replacement motor, alignment is checked and adjusted. (4)…

  • EK General Oct 2018 (Q5)

    EK General Oct 2018 (Q5)

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    With reference to centrifugal pumps: (a) Explain the operating principle of a centrifugal pump and why it is unnecessary to fit a relief valve to it; (4) (b) State two impeller types and which type of application they would be best suited for; (2) (c) Explain why cavitation occurs and how to possibly reduce by…

  • EK General Mar 2018 (Q4)

    EK General Mar 2018 (Q4)

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    (a) State the affinity laws for a centrifugal pump (3) (b) State the effects on the pump affinity laws of fitting a slightly smaller diameter impeller (2) (c) Explain, with the aid of a head versus flow diagram, why a two speed pump is preferable to throttling where high and low capacities are demanded for…