MEO Class IV – MEP : 2023/AUG/05 – 2024/MAY/02 – 2024/SEP/02 – 2025/FEB/02
Question
Q5. A biological sewage system develops a fault, which necessitates opening the unit for repair. Explain the following:
(a) The risk associated with opening the unit. (6)
(b) The precautions taken to reduce the risk. (6)
(c) Explain the significance of biological oxygen demand (B.O.D). (4)
Asked in Year/Month/Ques No.
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