Q9. With reference to Vacuum Sewage System
(a) Sketch & Describe a Vacuum Sewage System.
(b) State the advantages of Vacuum Sewage System.
(c) State the different causes of dropping vacuum.
Q7. Sewage treatment plant is due for internal inspection. List the detailed procedure for carrying out this inspection with the specific checks to be carried out as per OEM instructions after it is stopped and emptied. Also discuss the safety precautions to be taken in your answer. (16)
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