Tag: #positivedisplacementpump

  • EK General Dec 2023 (Q5)

    EK General Dec 2023 (Q5)

    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 Aug 2020 (Q5)

    EK General Aug 2020 (Q5)

    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)