NEET Botany
Microbes In Sewage Treatment
Low Priority
Consistency: 25%
Weightage: 5 / 20 Yrs
High-Yield Trend
1
2017 1
2013 1
2012 1
2011 1
2010 Questions 5 MCQs
01
PYQ 2010
easy
botany ID: neet-201
Select the correct statement from the following:
| 1. | Biogas is produced by the activity of aerobic bacteria on animal waste |
| 2. | Methanobacterium is an aerobic bacterium found in the rumen of cattle |
| 3. | Biogas, commonly called gobar gas, is pure methane |
| 4. | Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria |
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02
PYQ 2011
easy
botany ID: neet-201
Which of the following is mainly produced by the activity of anaerobic bacteria on sewage?
1. Propane
2. Mustard gas
3. Marsh gas
4. Laughing gas
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03
PYQ 2012
easy
botany ID: neet-201
Measuring Biochemical Oxygen Demand (BOD) is a method used for:
| 1. | Estimating the amount of organic matter in sewage water |
| 2. | Working out the efficiency of oil-driven automobile engines |
| 3. | Measuring the activity of Saccharomyces cerevisiae in producing curd on a commercial scale |
| 4. | Working out the efficiency of RBCs about their capacity to carry oxygen |
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04
PYQ 2013
easy
botany ID: neet-201
During sewage treatment, biogases are produced which include:
1. methane, oxygen, hydrogen sulphide
2. hydrogen sulphide, methane, sulphur dioxide
3. hydrogen sulphide, nitrogen, methane
4. methane, hydrogen sulphide, carbon dioxide
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05
PYQ 2017
easy
botany ID: neet-201
Which of the following in sewage treatment removes suspended solids?
1. Secondary treatment
2. Primary treatment
3. Sludge treatment
4. Tertiary treatment
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