Tag: #oxygendepletion
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EK General Mar 2023 (Q4)
(a) Describe a vacuum sewage system. (5) (b) List the advantages of the system described in part (a) (4) (c) State why untreated sewage should not be allowed to stagnate. (1) Sewage system Mar 2023 (Q4)
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EK General Mar 2019 (Q5)
(a) Describe the operation of a vacuum sewage system. (5) (b) List the advantages of a vacuum sewage system when compared to a conventional flushing system. (4) (c) State why untreated sewage should not be allowed to stagnate. (1) Sewage system Mar 2019 (Q5)
UKM Tuticorin 