Q. Which of the following are considered as contaminant gases in biogas?

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Q. Which of the following products of anaerobic digestion consists of organic humus and nutrients?

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Q. Which of the following are used to store manure?

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Q. What are the three methods of pre-treatment of influent for anaerobic digestion?

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Q. Thermo-chemical processes have higher efficiencies than bio-chemical processes.

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Q. Which of the following is best suited to decompose lignin?

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Q. Which of the following are types of pyrolysis?

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Q. Bio-oil has double the heating value of conventional fuel oil.

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Q. What are the three types of hydrothermal processing of biomass?

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Q. Which of the following is the mildest hydrothermal process?

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Q. Which of the following hydrothermal processes produces syngas?

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Q. Hydrothermal liquefaction produces _________

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Q. Which of the following produces a solid hydro-char?

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Q. What is unique about the gasification agent entering in a fluidized gasifier?

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Q. What ensures consistency of temperature in fluidized gasifier?

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Q. What are the three types of fluidized gasifiers used?

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Q. How is the temperature maintained in a bubbling fluidized bed?

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Q. What is the temperature range in a bubbling fluidized bed?

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Q. What is the biomass decomposed to in a bubbly fluidized bed?

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Q. What are the two main units in a circulating fluidized bed?

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