Analysis of Coal MCQ

Test your knowledge with important Analysis of Coal MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Analysis of Coal MCQs on Bissoy. Bissoy App

• In proximate analysis of coal, %fixed carbon = __________
  ক

  100 – % (ash + volatile matter + moisture)

  খ

  100 – % (ash + moisture)

  গ

  100 – % (ash + moisture) + %volatile matter

  ঘ

  100 – % (moisture + volatile matter)
• __________ is the weight of residue obtained after burning a weighed amount of dry coal.
  ক

  Ash

  খ

  Volatile matter

  গ

  Moisture

  ঘ

  Carbon
• In ultimate analysis, %carbon is given by __________
  ক

  (Increase in weight of KOH tube×12×100 / weight of coal sample taken×44)

  খ

  (Increase in weight of KOH tube×2×100 / weight of coal sample taken×18)

  গ

  (Increase in weight of CaCl2 tube×12×100 / weight of coal sample taken×44)

  ঘ

  (Increase in weight of CaCl2 tube×2×100 / weight of coal sample taken×18)
• In ultimate analysis, %hydrogen is given by __________
  ক

  (Increase in weight of CaCl2 tube×2×100 / weight of coal sample taken×18)

  খ

  (Increase in weight of KOH tube×2×100 / weight of coal sample taken×18)

  গ

  (Increase in weight of CaCl2 tube×4×100 / weight of coal sample taken×18)

  ঘ

  (Increase in weight of KOH tube×4×100 / weight of coal sample taken×18)
• In coal, Sulphur is usually present in the extent of __________
  ক

  0.5-3%

  খ

  90-95%

  গ

  70-75%

  ঘ

  80-85%
• Percentage of ash by analysis of coal is given by _____
  ক

  (weight of residue/weight of sample) × 100

  খ

  (weight of sample – weight of residue) × 100

  গ

  (weight of sample – weight of residue)/weight of sample × 100

  ঘ

  (weight of residue – weight of sample) × 100
• Good quality of coal should have _____ % of oxygen.
  ক

  low

  খ

  high

  গ

  100

  ঘ

  0
• Hydrogen available for combustion is lesser than the actual one.
  ক

  true

  খ

  false
• In determination of carbon and hydrogen by ultimate analysis, increase in weight of calcium chloride bulb represents ______
  ক

  weight of water formed

  খ

  weight of carbon dioxide formed

  গ

  carbon

  ঘ

  hydrogen
• In analysis of coal, determination of _______ is done by Kjeldahl method.
  ক

  Volatile matter

  খ

  Nitrogen

  গ

  Ash

  ঘ

  Oxygen