Question 61 : The organelle in a plant cell where photosynthesis occurs is called _________
1. Rubisco
2. Chloroplast
3. Thylakoid
4. Pigment
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Question 62 : From what material is biogas holder drum made?
1. Mild steel
2. Cast iron
3. Aluminum alloys
4. Rot iron
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Question 63 : Below which temperature the action off digesting bacteria decreases?
1. 16^oC
2. 35^oC
3. 28^oC
4. 0^oC
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Question 64 : Which cycle is preferred for production of carbohydrates?
1. Nutrient cycle
2. Bio geo chemical cycle
3. Calvin - Benson Cycle
4. Sonnet cycle
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Question 65 : How many types of gasifiers are there?
1. 2
2. 3
3. 4
4. 5
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Question 66 : Which is an organic matter produced by plants in direct or indirect forms?
1. Solar energy
2. Biomass
3. Wind energy
4. Bio-fuel
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Question 67 : How are systems intended for the digestions are filled and emptied?
1. Manually
2. By evaporation
3. By pumps and pipes
4. By channels and pits
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Question 68 : What is the percentage at which rated power from biogas in petrol engine can be developed?
1. 45%
2. 65%
3. 75%
4. 85%
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Question 69 : Photosynthesis is carried in how many stages?
1. 1
2. 2
3. 3
4. 4
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Question 70 : Too nitrogen will cause ____________
1. Poisonous gases
2. Reduction in fertility of mixture
3. Reduction in quantity of mixture
4. Mixture to harden
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