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MCQs

Total Questions : 150 | Page 5 of 15 pages
Question 41. How is the biomass material and gasification agent fed into an updraft gasifier?
  1.    Biomass from top, gasifying agent from top
  2.    Biomass from top, gasifying agent from bottom
  3.    Biomass from bottom, gasifying agent from top
  4.    Biomass from bottom, gasifying agent from bottom
 Discuss Question
Answer: Option B. -> Biomass from top, gasifying agent from bottom
Answer: (b).Biomass from top, gasifying agent from bottom
Question 42. The product gas removed from the low temperature zone undergoes _______ before being used as fuel in combustion for electricity generator.
  1.    liquefaction
  2.    condensation
  3.    evaporation
  4.    cleaning
 Discuss Question
Answer: Option D. -> cleaning
Answer: (d).cleaning
Question 43. What is the contaminant in the product gas that is withdrawn from a low temperature zone in a fixed bed gasifier?
  1.    Gold
  2.    Platinum
  3.    Tar
  4.    Nickel
 Discuss Question
Answer: Option C. -> Tar
Answer: (c).Tar
Question 44. How is the biomass material and gasification agent fed into a downdraft gasifier?
  1.    Biomass from top, gasifying agent from top
  2.    Biomass from top, gasifying agent from bottom
  3.    Biomass from bottom, gasifying agent from left side
  4.    Biomass from top, gasifying agent from right side
 Discuss Question
Answer: Option A. -> Biomass from top, gasifying agent from top
Answer: (a).Biomass from top, gasifying agent from top
Question 45. The tar content of the product gas in downdraft gasifier is _______ updraft gasifier.
  1.    equal to
  2.    less than
  3.    greater than
  4.    cleaner than
 Discuss Question
Answer: Option B. -> less than
Answer: (b).less than
Question 46. High moisture fuels burn readily and provide more useful heat per unit mass.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 47. What is lower heating value?
  1.    Amount of energy available in the fuel + energy contained in water vapour in the exhaust gases
  2.    Total amount of energy available in the fuel – energy contained in water vapour in the exhaust gases
  3.    Total amount of energy available in the fuel / energy contained in water vapour in the exhaust gases
  4.    Total amount of energy available in the fuel which cannot be used
 Discuss Question
Answer: Option B. -> Total amount of energy available in the fuel – energy contained in water vapour in the exhaust gases
Answer: (b).Total amount of energy available in the fuel – energy contained in water vapour in the exhaust gases
Question 48. Moisture content can be calculated on two bases, namely _______
  1.    light and heavy
  2.    weighted and even
  3.    wet and dry
  4.    light and dry
 Discuss Question
Answer: Option C. -> wet and dry
Answer: (c).wet and dry
Question 49. Biomass is seasonal.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 50. What are the main components of cellulosic biomass?
  1.    Hemicellulose and lignin
  2.    Hemicellulose and sugars
  3.    Cellulose, sugars and fats
  4.    Cellulose, hemicellulose and lignin
 Discuss Question
Answer: Option D. -> Cellulose, hemicellulose and lignin
Answer: (d).Cellulose, hemicellulose and lignin

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