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  9. Q36

TGPSC Group-I 2023 · Question 36 of 136

Consider the following statements : A. BOD is oxygen consumed by micro - organisms and is an index of water pollution. B. Drinking water should have BOD level of 1 to 2 ppm. Which of the above statements is/are correct ?

Science and Technology

  1. AA only
  2. BB only
  3. CBoth A and BCorrect
  4. DNeither A nor B

Answer: C. Both A and B

Explanation

Both statements are correct: BOD measures oxygen consumed by micro-organisms, and drinking water BOD is 1–2 ppm.

Source: TGPSC Group-I Preliminary Test 2023 official question paper (held 11 Jun 2023)

← Q35View full paper (136 questions)Q37 →

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