Question 11 : What is the full form of TVS?
1. Tempered volatile solid
2. Total variant solid
3. Total volatile solid
4. Termed variant solid
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Question 12 : Which types of plants are filled and then emptied completely after fixed retention time?
1. Batch plants
2. Continuous plants
3. Floating gas holder plants
4. Flexible bag biogas plant
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Question 13 : Which is the most suitable temperature for the production of methane in anaerobic fermentation?
1. 32 - 35^oC
2. 18 - 26^oC
3. 40 - 48^oC
4. 10 - 15^oC
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Question 14 : Khadi village industries type biogas plant is example of _________
1. flexible Bag biogas plant
2. fixed dome biogas plant
3. floating drum biogas plant
4. semi-batch type
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Question 15 : How is potential toxicity, due to ammonia is corrected?
1. By dilution
2. By adding urea
3. By adjusting the temperature
4. By adding extra carbon rich content
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Question 16 : Which gasifier equipment has inability to operate on a number of unprocessed fuels?
1. Counter current gasifier
2. Cross draught gasifier
3. Co-current gasifier
4. Fluidized bed gasifier
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Question 17 : Which of the following waste produces more gases comparatively?
1. Vegetable matter
2. Cow dung
3. Plant waste
4. Organic waste from industry
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Question 18 : For minimum of how many days within starting of fermentation, initiates anaerobic bacterial action?
1. 2
2. 10
3. 14
4. 20
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Question 19 : Which of the SI engine can be run on biogas?
1. Diesel engine
2. Petrol engine
3. IC engine
4. External combustion engine
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Question 20 : __________ is made by combining alcohol with vegetable oil, animal fat or recycled cooking grease.
1. Biodiesel
2. Biomass
3. Bioelectricity
4. Syngas
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