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Which of the following statements is fal...

Which of the following statements is false ?
(a) The effluent present in first tank is used for secondary treatment. (b) Physical particle are removed in second stage. (c) Secondary treatment is a chemical process. (d) During Sedimentation, initially grit is removed.

A

only (a)

B

(a) and (c) only

C

(b), (c) and (d)

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
(b), (c) and (d)
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KUMAR PRAKASHAN-MICROBES IN HUMAN WELFARE -SECTION - F MULTIPLE CHOICE QUESTIONS(MCQS FROM DARPAN BASED ON TEXTBOOK)
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  2. S-flocks use more portion of organic substances present in water. ...

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  3. Which of the following statements is false ? (a) The effluent pr...

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  4. Which of the following statements is not true for biogas? (a) In v...

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  5. Fungicides weed killer are prepared for: A. bacteria B. fungi C. viru...

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  6. IARI is.... (A) Indian Agricultural research Institute (B) Internat...

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  7. The factors which harm crops in field of agriculture are normally cons...

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  8. S. Alexander Fleming was the discoverer of Penicillin R - Fumagil...

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  9. What is the nutritional method of Anabaena ? (A) Symbiotic (B) Asym...

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  10. S- Ensilage is a cattle food. R- Ensilage is made by fermentation ...

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  11. Which of the following is used as an immunosupperessive agent in organ...

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  12. How flocks are made ? (A) By aerobic bacteria and filaments of fungi....

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  13. Opium is obtained from -

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  14. Antibiotics inhibit the growth or destroy (A) Bacteria and fungi (B...

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  15. ............ associated with filament of molds present in the water an...

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  16. In which process Baker's yeast is used ? (A) To prepare bread (B) N...

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  17. Assertion .A.: Photosynthetic microbes produce H2 . Reason .R.: ...

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  18. When primary sludge is formed during sewage treatment?

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  19. Microbes inhabitant: (A) only water (B) water and soil (C) water,...

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  20. The ministry of forest and environment has initiated which action plan...

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