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ISRO 2023 Quiz 3 Revision
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Question 1
Zero hardness of water can be achieved by
Question 2
If 2% solution of a sewage sample is incubated for 5 days at 20 degrees and depletion of oxygen was found to be 5 ppm, BOD of the sewage is
Question 3
The per capita demand of water is calculated in litres
Question 4
In a sludge digestion tank, the gas that mainly evolves is
Question 5
Direction: In the following question, which one of the given responses would be a meaningful order of the following words:
1) Act
2) Listen
3) Analyze
4) Observe
5) Judge
1) Act
2) Listen
3) Analyze
4) Observe
5) Judge
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Nov 29ESE & GATE CE
