Tag: #powerconsumption
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EK General Jul 2023 (Q4)
With reference to centrifugal pumps: (a) Sketch a double entry impeller showing directions of flow (3) (b) Explain why double entry impellers are fitted (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 a large…
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EK General Dec 2020 (Q5)
With reference to centrifugal pumps: (a) sketch a double entry impeller showing directions of flow; (3) (b) explain why double entry impellers are fitted; (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 a large…
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EK General Jul 2019 (Q4)
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)…
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EK General Mar 2018 (Q4)
(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…
UKM Tuticorin 