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Civil Set-1
Environmental Engineering
21

Environmental Engineering MCQ with Answers

21) The maximum permissible limit for flouride in drinking water is

0.1 mg/litre

1.5 mg/litre

5 mg/litre

10 mg/litre

Answer is:

1.5 mg/litre

Environmental Engineering MCQ with Answers

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Related Environmental Engineering MCQ with Answers

22) Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the

hardness in water

residual chlorine in water

turbidity in water

dissolved oxygen in water

Answer is:

hardness in water

23) If the coliform bacteria is present in a sample of water, then the coliform test to be conducted is i) presumptive coliform test ii) confirmed coliform test iii) completed coliform test The correct answer is

only (i)

both (i) and (ii)

both (i) and (iii)

all (i), (ii) and (iii)

Answer is:

all (i), (ii) and (iii)

24) Alkalinity in water is expressed as milli-grams per litre in terms of equivalent

calcium carbonate

magnesium carbonate

sodium carbonate

calcium hydroxide

Answer is:

calcium carbonate

25) Which of the following values of pH represents a stronger acid

2

5

7

10

Answer is:

2

Environmental Engineering MCQ with Answers

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