Tag: evs
Questions Related to evs
In which compositing method coarse inert matter is firstly removed?
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Open window Compositing
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Machanical Compositing
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Compositing by tranching
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Pulverization
Vermi-processing toilet is beneficial because
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It reduces the diseases.
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It increases soil fertility.
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Both A and B.
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It reduces electricity.
- Vermi-processing toilets is a design of a toilet in which humans excreta is treated by earthworms.
- In this process, human excreta is completely converted to cake like structures called vermi cakes by earthworms. Vermi cakes are used mostly in the soil as manure and fertilizers.
- The vermi-processing toilet is beneficial because It reduces diseases and increases soil fertility.
- So, the correct answer is 'Both A and B'.
Vermi-processing toilet is
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Alternative sources of energy.
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Alternative arrangement of sewage disposal.
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Alternative arrangement of sewage treatment.
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None of the above.
In which of the following process, human excreta is completely converted to vermi cakes?
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Vermicomposting
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Vermi-processing toilets
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Biogas production
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None of the above
- Vermi-processing toilets is a design of a toilet in which humans excreta is treated by earthworms.
- In this process, human excreta is completely converted to cake like structures called vermi cakes by earthworms. Vermi cakes are used mostly in the soil as manure and fertilizers
- Hence Vermi-processing toilets, human excreta is completely converted vermi cakes.
- So, the correct answer is 'Vermi-processing toilets'.
Identify the low-cost onsite sewage disposal system.
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Septic tank
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Composting pits
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Chemical toilets
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All of the above
- Septic tanks are suitable for places where there is no sewerage system, for hospitals, isolated buildings or a cluster of 4 to 5 houses.
- Some organisations offer hygienic on-site human waste disposal technology. These toilets do not require scavenging. Excreta from the toilet seats flow through covered drains into a biogas plant. The biogas produced is used as a source of energy. (Composting pits).
- A chemical toilet collects human excreta in a holding tank and uses chemicals to minimize odors. These toilets are usually, but not always, self-contained and movable. A chemical toilet is structured around a relatively small tank, which needs to be emptied frequently.
The worm used in vermi-processing toilet is
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Redworm.
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Roundworm.
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Flatworm.
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None of the above.
- Vermi-processing toilets is a design of a toilet in which humans excreta is treated by earthworms and redworms.
- In this process, human excreta is completely converted to cake like structures called vermi cakes by earthworms. Vermi cakes are used mostly in the soil as manure and fertilizers.
- Hence The worm used in the vermi-processing toilet is Redworm.
- So, the correct answer is 'Redworm'.
Which of the following is associated with the vermi-processing toilets?
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Low water use toilet
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Electronic toilet
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Kid's toilet
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None of the above
- Vermi-processing toilets is a design of a toilet in which humans excreta is treated by earthworms.
- In this process, human excreta is completely converted to cake like structures called vermi cakes by earthworms. Vermi cakes are used mostly in the soil as manure and fertilizers.
- The vermi-processing toilets do not use water for flushing and therefore called dry toilets.
- Hence vermi-processing toilets are associated with Low water use toilet because they do not use water for flushing.
- So, the correct answer is 'Low water use toilet
The human excreta can be used for the production of ________________.
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Vermi cakes for fertilizer
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Vermi cakes as manure
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Vermi cakes as animal food
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Both A and B
Pyrolysis of wood occurs in
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Presence of air
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Absence of air
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Limited supply of air
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Both B and C
Pyrolysis is the term used for thermal decomposition of materials at high temperature in an inert atmosphere i.e. absence of air.
Pyrolysis of wood occurs in
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Presence of air
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Absence of air
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Limited supply of air
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Both B and C