Question 1 : Which of the following is not the land filling method?
1. Bangalore method
2. Area method
3. Depression method
4. Trench method
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Question 2 : Which chemical is added to the oxidation pond to avoid bad odor?
1. Calcium chloride
2. Sodium nitrate
3. Potassium chloride
4. Silver nitrate
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Question 3 : The gas chamber in the above figure is represented by
1. A
2. E
3. B
4. C
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Question 4 : Which of the following is a biodegradable waste?
1. Polythene bags
2. Synthetic fiber
3. Food waste
4. Paper
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Question 5 : The concentration of biodegradable organic matter after the septic tank is
1. 50ppm
2. 100ppm
3. 200ppm
4. 75ppm
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Question 6 : The density of ash produced in the municipal solid waste is
1. 100 kg/m³
2. 450 kg/m³
3. 700 kg/m³
4. 1000 kg/m³
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Question 7 : The detention period of the sedimentation chamber of an Imhoff tank is
1. 30 seconds
2. 30 minute
3. 1 hour
4. 2 hour
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Question 8 : The detention period of a septic tank is
1. 2 hours
2. 12-36 hours
3. 4 hours
4. 1 week
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Question 9 : ______ is the cutting and tearing of municipal solid waste.
1. Land fills
2. Shredding
3. Pulverization
4. Composting
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Question 10 : The process of burning of municipal solid waste at high temperature is called
1. Incineration
2. Composting
3. Land filing
4. Shredding
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