Question 81 : What type of movement does a biogas holder of KVIC has?
1. Linear Movement
2. Transverse movement
3. Rotary movement
4. Circular movement
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Question 82 : Which type of valve is used to prevent air being drawn into the digester?
1. Non return valve
2. Poppet vale
3. Return valve
4. Check valve
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Question 83 : For how much percent is biogas normally designed to hold?
1. 35%
2. 20%
3. 50%
4. 80%
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Question 84 : How many weeks does a batch digester need to produce biogas?
1. 1 week
2. 2 - 4 week
3. 12 week
4. 4 – 8 week
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Question 85 : Cow manure is rich in __________
1. Hydrogen
2. Phosphorus
3. Nitrogen
4. Potassium
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Question 86 : ______________ is a major factor in determining the methane yield and methane production rates from the digestion of biomass.
1. Seeding
2. Contamination
3. Substrate composition
4. Moisture content
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Question 87 : The ____________ is made of bricks and cement mortar and it's inside wall are plastered with a mixture of cement and sand.
1. Foundation
2. DigesterC) Gas holderd) Inlet and outlet pipe
3.
4.
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Question 88 : In which type of plant the weight needs to be added on top to build the desired pressure?
1. Flexible Bag biogas plant
2. Fixed dome biogas plant
3. Floating drum biogas plant
4. Khadi and village industries type biogas plant
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Question 89 : C₆H₁₂O₆ is a _________
1. Osmophile
2. Trapiche
3. Sugar
4. Butanol fuel
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Question 90 : Which engine can run on dual fuel with little engine modification?
1. Diesel engine
2. Petrol engine
3. IC engine
4. External combustion engine
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