Sewage Treatment Plant objective questions and answers

1. The pH value of sewage is determined with the help of

   A.Imhoff cone

   B.Turbidimeter

   C.Potentionmeter

   D.None of these

2.  The pressure of free ammonia in sewage, is detected by

   A. Boiling

   B. Adding potassium permanganate

   C. Adding suphuric acid

   D. Phenol-di-sulphuricacid

3. The average temperature of sewage is taken as

   A. 0⁰ C

   B. 5⁰ C

   C. 10⁰ C

   D. 20⁰ C

4. The presence ofammonia in sewage is detected by

   A.Boiling

   B.Adding salt

   C.Adding potassium permanganate

   D.Adding sulphuric acid

5. The sewage traetment units in which anaerobic decomposition of organic matter is used, are called

   A.Imhoff tanks

   B.Tricking filters

   C.Sludge sedimentation tanks

   D.None of these

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